CCNA 4 Final Answer
Set-1
1
Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?
Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?
The PVC to R1 must be point-to-point.
LMI types must match on each end of a PVC.
The frame relay PVCs cannot be established between Cisco and non-Cisco routers.
The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.
2
Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?
LMI types must match on each end of a PVC.
The frame relay PVCs cannot be established between Cisco and non-Cisco routers.
The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.
2
Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?
interface reset
unplugged cable
improper LMI type
PPP negotiation failure
unplugged cable
improper LMI type
PPP negotiation failure
3
A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?
A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?
Company 1 only uses microfilters at branch locations.
Company 1 has a lower volume of POTS traffic than company 2 has.
Company 2 is located farther from the service provider than company 1 is.
Company 2 shares the connection to the DSLAM with more clients than company 1 shares with.
Company 1 has a lower volume of POTS traffic than company 2 has.
Company 2 is located farther from the service provider than company 1 is.
Company 2 shares the connection to the DSLAM with more clients than company 1 shares with.
4
Refer to the exhibit. A network administrator is creating a prototype to verify the new WAN design. However, the communication between the two routers cannot be established. Based on the output of the commands, what can be done to solve the problem?Replace the serial cable .
Replace the WIC on RA.
Configure RA with a clock rate command.
Issue a no shutdown interface command on RB.
Refer to the exhibit. A network administrator is creating a prototype to verify the new WAN design. However, the communication between the two routers cannot be established. Based on the output of the commands, what can be done to solve the problem?Replace the serial cable .
Replace the WIC on RA.
Configure RA with a clock rate command.
Issue a no shutdown interface command on RB.
5
Refer to the exhibit. Router RT is not receiving routing updates from router RTA. What is causing the problem?The ip rip authentication key-chain command specifies exam rather than test.
The name of the keystring is not the name of the neighboring router.
The key chains are given the same name on both routers.
The passive-interface command was issued for RTA.
6
What are two main components of data confidentiality? (Choose two.)
checksum
digital certificates
encapsulation
encryption
hashing
Refer to the exhibit. Router RT is not receiving routing updates from router RTA. What is causing the problem?The ip rip authentication key-chain command specifies exam rather than test.
The name of the keystring is not the name of the neighboring router.
The key chains are given the same name on both routers.
The passive-interface command was issued for RTA.
6
What are two main components of data confidentiality? (Choose two.)
checksum
digital certificates
encapsulation
encryption
hashing
7
Which network component has the primary function of detecting and logging attacks made against the network?Cisco Security Agent
antivirus software scanner
intrusion detection systemintrusion prevention system
Which network component has the primary function of detecting and logging attacks made against the network?Cisco Security Agent
antivirus software scanner
intrusion detection systemintrusion prevention system
8
Refer to the exhibit. A network technician has been called in to resolve a problem with this network segment. The symptoms include a loss of connectivity throughout the network segment, high link utilization, and syslog messages that indicate constant MAC address relearning. What is the likely cause of these symptoms?
cable fault
faulty NIC card
IP addressing error
spanning tree problem
NAT configuration error
9
Which variable is permitted or denied by a standard access control list?
Which variable is permitted or denied by a standard access control list?
protocol type
source IP address
source MAC address
destination IP address
destination MAC address
10
Refer to the exhibit. To reach R2, and for configuring Frame Relay on the point-to-point interfaces shown in the graphic, which DLCI should be used in the frame-relay interface-dlci command that is issued on R1?
100
101
200
201
11
A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
Configure DHCP and static NAT.
Configure dynamic NAT for ten users.
Configure static NAT for all ten users.
Configure dynamic NAT with overload.
12
Refer to the exhibit. Which two actions are described by the output of the debug ip nat command? (Choose two.)
A packet from 192.168.1.2 has been translated using NAT overload.
The * indicates that the NAT translation was unsuccessful and the packet was dropped.
A packet from 192.31.7.2 has been translated by NAT and forwarded to a destination address of 198.133.219.2.
A packet from 192.31.7.2 has been sent to 198.133.219.2, which was then translated to the destination 192.168.1.2
A packet from 192.168.1.2 has been translated by NAT to a source address of 198.133.219.2 and forwarded to the destination 192.31.7.2.
13
Refer to the exhibit. A technician issues the show interface s0/0/0 command on R1 while troubleshooting a network problem. What two conclusions can be determined by from the output shown? (Choose two.)
The bandwidth has been set to the value of a T1 line.
This interface should be configured for PPP encapsulation.
There is no failure indicated in an OSI Layer 1 or Layer 2.
The physical connection between the two routers has failed.
The IP address of S0/0/0 is invalid, given the subnet mask being used.
14
Which Layer 2 access method separates traffic into time slots and is specified by DOCSIS for use with cable high speed Internet service?
Which Layer 2 access method separates traffic into time slots and is specified by DOCSIS for use with cable high speed Internet service?
TDMA
FDMA
CDMA
S-CDMA
15
Refer to the exhibit. Which data transmission technology is being represented?
TDM
PPP
HDLC
SLIP
16
Which statement is true about PAP in the authentication of a PPP session?
Which statement is true about PAP in the authentication of a PPP session?
PAP uses a two-way handshake.
The password is unique and random.
PAP conducts periodic password challenges.
PAP uses MD5 hashing to keep the password secure.
17
What is a common use of a TFTP server?
What is a common use of a TFTP server?
to allow access to restricted system resources
to detect attacks against a network and send logs to a management console
to provide active defense mechanisms that prevent attacks against the network
to perform IOS image and configuration uploads and downloads over the network
18
Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the exhibit. Why are the routers unable to establish a PPP session?
The clock rate must be 56000.
The usernames are misconfigured.
The IP addresses are on different subnets.
The clock rate is configured on the wrong end of the link.
The CHAP passwords must be different on the two routers.
Interface serial 0/0/0 on CTRL must connect to interface serial 0/0/1 on BR_1.
19
What is the result when the command security passwords min-length 8 is entered into a router?
What is the result when the command security passwords min-length 8 is entered into a router?
All new passwords are required to be a minimum of 8 characters in length.
All current passwords are now required to be a minimum of 8 characters in length.
Enable passwords must be at least 8 characters but line passwords are unaffected.
Nothing will happen until the command service password-encryption is entered. Then all future passwords must have a minimum of 8 characters.
20
After troubleshooting a LAN, a network technician has determined that network performance has been severely impacted by the attenuation of the bit stream. Which physical layer condition led the technician to this conclusion?
After troubleshooting a LAN, a network technician has determined that network performance has been severely impacted by the attenuation of the bit stream. Which physical layer condition led the technician to this conclusion?
There is an excessive amount of EMI on the physical media.
The amplitude of the physical layer data has been significantly reduced.
There is an open conductor between the endpoints on the physical media.
The maximum allowed clock rate on the physical media has been exceeded.
21
A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
reduced jitter
reduced costs
reduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers
22
Which two statements are true about creating and applying access lists? (Choose two.)
Which two statements are true about creating and applying access lists? (Choose two.)
One access list per port, per protocol, per direction is permitted.
Access list entries should filter in the order from general to specific.
Statements are processed sequentially from top to bottom until a match is found.
The term “inbound” refers to traffic entering the network from the router interface where the ACL is applied.
Standard ACLs should be applied closest to the source while extended ACLs should be applied closest to the destination.
23
A network technician wants to implement SSH as the means by which a router may be managed remotely. What are two procedures that the technician should use to successfully complete this task? (Choose two.)
A network technician wants to implement SSH as the means by which a router may be managed remotely. What are two procedures that the technician should use to successfully complete this task? (Choose two.)
Configure the login banner.
Configure authentication.
Define the asymmetrical keys.
Configure the console password.
Enter the service password-encryption command.
24
Which two protocols in combination should be used to establish a link with secure authentication between a Cisco and a non-Cisco router? (Choose two.)
Which two protocols in combination should be used to establish a link with secure authentication between a Cisco and a non-Cisco router? (Choose two.)
HDLC
PPP
SLIP
PAP
CHAP
25
What will be the result of adding the command ip dhcp excluded-address 192.168.24.1 192.168.24.5 to the configuration of a local router that has been configured as a DHCP server?
What will be the result of adding the command ip dhcp excluded-address 192.168.24.1 192.168.24.5 to the configuration of a local router that has been configured as a DHCP server?
Traffic that is destined for 192.168.24.1 and 192.168.24.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 192.168.24.1 and 192.168.24.5.
The DHCP server will not issue the addresses ranging from 192.168.24.1 to 192.168.24.5.
The router will ignore all traffic that comes from the DHCP servers with addresses 192.168.24.1 and 192.168.24.5.
26
Refer to the exhibit. The network administrator creates a standard access control list to prohibit traffic from the 192.168.1.0/24 network from reaching the Internet. The access list must still permit the 192.168.1.0/24 network access to the 192.168.2.0 network. On which router interface and in which direction should the access control list be applied?
interface Fa0/0, inbound
interface Fa0/0, outbound
interface S0/0/0, inbound
interface S0/0/0, outbound
27
Refer to the exhibit. Which statement is true about the Frame Relay connection?
The Frame Relay connection is in the process of negotiation.
A congestion control mechanism is enabled on the Frame Relay connection.
The “ACTIVE” status of the Frame Relay connection indicates that the network is experiencing congestion.
Only control FECN and BECN bits are sent over the Frame Relay connection. No data traffic traverses the link.
28
Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?
There is a Layer 2 loop.
The VTP domain names do not match.
Only one switch can be in server mode.
S2 has a higher spanning-tree priority for VLAN 11 than S1 does.
29
An administrator attempts to telnet into a remote device and receives the error “Password required but none set”. How can the administrator resolve this issue?
An administrator attempts to telnet into a remote device and receives the error “Password required but none set”. How can the administrator resolve this issue?
Set the enable secret command on the remote router.
Set the login command on the vty lines on the remote router.
Set the password command on the vty lines on the remote router.
Enable the service password-encryption command on the remote router.
30
Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What is the cause of the problem?
The default gateway is in the wrong subnet.
STP has blocked the port that PC1 is connected to.
Port Fa0/2 on S2 is assigned to the wrong VLAN.
S2 has the wrong IP address assigned to the VLAN30 interface.
31
Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP?
Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP?
flow control
error control
authentication
synchronous communication
32
Refer to the exhibit. A technician is teaching a trainee to interpret the results of various Frame Relay troubleshooting commands. What conclusion can be drawn from the output that is shown?
Neighboring routers should use DLCI 177 to reach the Branch router.
DLCI 177 will be used to identify all broadcasts that are sent out the Branch router.
The Branch router has the address 192.168.3.1 configured for the S0/0/0 interface.
To reach 192.168.3.1, the Branch router will use the virtual circuit that is identified by DLCI 177.
33
Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal waste from unused addresses?
/19
/20
/21
/22
/23
/24
34
A network administrator uses the 3DES algorithm to encrypt traffic that crosses a VPN. Which VPN characteristic is being configured?
A network administrator uses the 3DES algorithm to encrypt traffic that crosses a VPN. Which VPN characteristic is being configured?
authentication
authorization
data integrity
data confidentiality
35
Which statement is true about wildcard masks?
Which statement is true about wildcard masks?
A wildcard mask must be created by inverting the subnet mask.
A wildcard mask performs the same function as a subnet mask.
A wildcard mask of 0.0.0.0 means the address should match exactly.
A wildcard mask uses a “1″ to identify IP address bits that must be checked.
36
Refer to the exhibit. What statement is true about the core router devices?
They use multiport internetworking devices to switch traffic such as Frame Relay, ATM, or X.25 over the WAN.
They provide internetworking and WAN access interface ports that are used to connect to the service provider network.
They provide termination for the digital signal and ensure connection integrity through error correction and line monitoring.
They support multiple telecommunications interfaces of the highest speed and are able to forward IP packets at full speed on all of those interfaces.
37
When NAT is in use, what is used to determine the addresses that can be translated on a Cisco router?
When NAT is in use, what is used to determine the addresses that can be translated on a Cisco router?
access control list
routing protocol
inbound interface
ARP cache
38
A network administrator is instructing a technician on best practices for applying ACLs. Which suggestion should the administrator provide?
A network administrator is instructing a technician on best practices for applying ACLs. Which suggestion should the administrator provide?
Named ACLs are less efficient than numbered ACLs.
Standard ACLs should be applied closest to the core layer.
ACLs applied to outbound interfaces are the most efficient.
Extended ACLs should be applied closest to the source that is specified by the ACL.
39
Which IP address and wildcard mask combination can be used in an ACL statement to match the 172.16.0.0/30 network?
Which IP address and wildcard mask combination can be used in an ACL statement to match the 172.16.0.0/30 network?
172.16.0.0 0.0.0.1
172.16.0.0 0.0.0.3
172.16.0.0 0.0.0.7
172.16.0.0 255.255.255.252
40
When configuring a Frame Relay connection, what is the purpose of Inverse ARP?
When configuring a Frame Relay connection, what is the purpose of Inverse ARP?
to assign a DLCI to a remote peer
to disable peer requests from determining local Layer 3 addresses
to negotiate LMI encapsulations between local and remote Frame Relay peers
to create a mapping of DLCI to Layer 3 addresses that belong to remote peers
41
Which security solution has the responsibility of monitoring suspicious processes that are running on a host and that might indicate infection of Trojan horse applications?
Which security solution has the responsibility of monitoring suspicious processes that are running on a host and that might indicate infection of Trojan horse applications?
antivirus application
operating system patches
intrusion prevention system
Cisco Adaptive Security Appliance
42
What is the function of an intrusion detection system on a network?
What is the function of an intrusion detection system on a network?
to restrict access to only authorized users
to detect attacks against a network and send logs to a management console
to prevents attack against the network and provide active defense mechanisms
to detect and prevent most viruses and many Trojan horse applications from spreading in the network
43
Which statement about a VPN is true?
Which statement about a VPN is true?
VPN link establishment and maintenance is provided by LCP.
DLCI addresses are used to identify each end of the VPN tunnel.
VPNs use virtual Layer 3 connections that are routed through the Internet.
Only IP packets can be encapsulated by a VPN for tunneling through the Internet.
44
An administrator learns of an e-mail that has been received by a number of users in the company. This e-mail appears to come from the office of the administrator. The e-mail asks the users to confirm their account and password information. Which type of security threat does this e-mail represent?
An administrator learns of an e-mail that has been received by a number of users in the company. This e-mail appears to come from the office of the administrator. The e-mail asks the users to confirm their account and password information. Which type of security threat does this e-mail represent?
cracking
phishing
phreaking
spamming
45
Refer to the exhibit. An ACL called Managers already exists on this router. What happens if the network administrator issues the commands as shown in the exhibit?
The commands are added to the end of the existing ACL.
The existing Managers ACL will be overwritten by the new ACL.
The router will output an error message and no changes will be made.
A duplicate Managers ACL will be created that will contain only the new commands.
46
Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router?
Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router?
PPP
SLIP
HDLC
Frame Relay
47
What name is given to the location where a customer network interfaces with a network that is owned by another organization?
What name is given to the location where a customer network interfaces with a network that is owned by another organization?
CPE
DCE
local loop
demarcation point
48
Refer to the exhibit. Which option displays the correct ACL that would need to be applied inbound on the S0/0/0 interface on R2 in order to permit any type of network traffic and block all FTP traffic coming from hosts on the 172.16.10.0/24 network going to the Internet?
49
Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to the TFTP server. He receives the error message that is shown in the exhibit, and cannot ping the TFTP server from R1. What is an action that can help to isolate this problem?
Use correct source file name in the command.
Verify that the TFTP server software is running.
Make sure that there is enough room on the TFTP server for the backup.
Check that R1 has a route to the network where the TFTP server resides.
50
A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.
51
Which characteristic of VPN technology prevents the contents of data communications from being read by unauthorized parties?
Which characteristic of VPN technology prevents the contents of data communications from being read by unauthorized parties?
QoS
latency
reliability
confidentiality
52
Which configuration on the vty lines provides the best security measure for network administrators to remotely access the core routers at headquarters?
Which configuration on the vty lines provides the best security measure for network administrators to remotely access the core routers at headquarters?
Exam Results – EWAN Final Exam – CCNA Exploration: Accessing the WAN – Version 4.0
Date Exam was Taken: 16/05/2011
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Set-2
1. What are two main components of data confidentiality? (Choose two.)
checksum
digital certificates
encapsulation
encryption
hashing
2. Which network component has the primary function of detecting and logging attacks made against the network?
Cisco Security Agent
antivirus software scanner
intrusion detection system
intrusion prevention system
3.
Refer to the exhibit. A network administrator has issued the commands that are shown on Router1 and Router2. A later review of the routing tables reveals that neither router is learning the LAN network of the neighbor router. What is most likely the problem with the RIPng configuration?
The serial interfaces are in different subnets.
The RIPng process is not enabled on interfaces.
The RIPng network command is not configured.
The RIPng processes do not match between Router1 and Router2.
4. Which three guidelines would help contribute to creating a strong password policy? (Choose three.)
Once a good password is created, do not change it.
Deliberately misspell words when creating passwords.
Create passwords that are at least 8 characters in length.
Use combinations of upper case, lower case, and special characters.
Write passwords in locations that can be easily retrieved to avoid being locked out.
Use long words found in the dictionary to make passwords that are easy to remember.
5.
Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the exhibit. Why are the routers unable to establish a PPP session?
The clock rate must be 56000.
The usernames are misconfigured.
The IP addresses are on different subnets.
The clock rate is configured on the wrong end of the link.
The CHAP passwords must be different on the two routers.
Interface serial 0/0/0 on CTRL must connect to interface serial 0/0/1 on BR_1.
6.
Refer to the exhibit. Headquarters is connected through the Internet to branch office A and branch office B. Which WAN technology would be best suited to provide secure connectivity between headquarters and both branch offices?
ATM
VPN
ISDN
Frame Relay
broadband DSL
7. Which combination of authentication and Layer 2 protocol should be used to establish a link between a Cisco and a non-Cisco router without sending authentication information in plain text?
CHAP and HDLC
CHAP and PPP
PAP and HDLC
PAP and PPP
8. A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?
Company 2 downloads larger files than company 1 downloads.
Company 2 must share the connection to the DSLAM with more clients than company 1 shares.
Company 1 is closer to the service provider than is company 2.
Company 1 has a lower volume of POTS traffic than company 2 has.
9.
Refer to the exhibit. The network administrator creates a standard access control list to prohibit traffic from the 192.168.1.0/24 network from reaching the Internet. The access list must still permit the 192.168.1.0/24 network access to the 192.168.2.0 network. On which router interface and in which direction should the access control list be applied?
interface Fa0/0, inbound
interface Fa0/0, outbound
interface S0/0/0, inbound
interface S0/0/0, outbound
10. An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology.
Incorrect IPv4 addresses are entered on the router interfaces.
RIPng is incompatible with dual-stack technology.
IPv4 is incompatible with RIPng.
11.
Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to the TFTP server. He receives the error message that is shown in the exhibit, and cannot ping the TFTP server from R1. What is an action that can help to isolate this problem?
Use correct source file name in the command.
Verify that the TFTP server software is running.
Make sure that there is enough room on the TFTP server for the backup.
Check that R1 has a route to the network where the TFTP server resides.
12.
Refer to the exhibit. Partial results of the show access-lists and show ip interface FastEthernet 0/1 commands for router Router1 are shown. There are no other ACLs in effect. Host A is unable to telnet to host B. Which action will correct the problem but still restrict other traffic between the two networks?
Apply the ACL in the inbound direction.
Apply the ACL on the FastEthernet 0/0 interface.
Reverse the order of the TCP protocol statements in the ACL.
Modify the second entry in the list to permit tcp host 172.16.10.10 any eq telnet .
13. What component of VPN technology combines message text with a key to make the message unreadable by unauthorized receivers?
message hash
user password
RSA signature
encryption algorithm
14. Which variable is permitted or denied by a standard access control list?
protocol type
source IP address
source MAC address
destination IP address
destination MAC address
15.
Refer to the exhibit. An ACL called Managers already exists on this router. What happens if the network administrator issues the commands as shown in the exhibit?
The new ACL overwrites the existing ACL.
The network administrator will receive an error message.
The existing ACL is modified to include the new command.
A second Managers ACL is created that contains only the new command.
16.
Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 have not received any RIP routing updates. What will fix the issue?
Enable RIP authentication on R2.
Issue the ip directed-broadcast command on R2.
Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.
Enable CDP on R2 so that the other routers will receive routing updates.
17. What name is given to the location where a customer network interfaces with a network that is owned by another organization?
CPE
DCE
local loop
demarcation point
18.
Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the Orlando router to the DC router?
DLCI 123
DLCI 321
10.10.10.25
10.10.10.26
MAC address of the DC router
19.
Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?
interface reset
unplugged cable
improper LMI type
PPP negotiation failure
20. What will be the result of adding the command ip dhcp excluded-address 10.10.4.1 10.10.4.5 to the configuration of a local router that has been configured as a DHCP server?
Traffic that is destined for 10.10.4.1 and 10.10.4.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 10.10.4.1 and 10.10.4.5.
The DHCP server will not issue the addresses ranging from 10.10.4.1 to 10.10.4.5.
The router will ignore all traffic that comes from the DHCP servers with addresses 10.10.4.1 and 10.10.4.5.
21. What functionality do access control lists provide when implementing dynamic NAT on a Cisco router?
which addresses are allowed to be accessed from the inside network
which addresses are allowed out of the router
which addresses are assigned to a NAT pool
which addresses are to be translated
22. Which statement about a VPN is true?
VPN link establishment and maintenance is provided by LCP.
DLCI addresses are used to identify each end of the VPN tunnel.
VPNs use virtual Layer 3 connections that are routed through the Internet.
Only IP packets can be encapsulated by a VPN for tunneling through the Internet.
23.
Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?
There is a Layer 2 loop.
The VTP domain names do not match.
Only one switch can be in server mode.
S2 has a higher spanning-tree priority for VLAN 11 than S1 does.
24. An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local mail server IP address successfully from a remote network and can also successfully ping using the mail server name. At which layer of the OSI model is the problem most likely to be found?
physical layer
network layer
data link layer
application layer
25. Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?
ATM
Frame Relay
HDLC
PPP
SDLC
26. A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.
27. Which statement accurately describes a role that is played in establishing a WAN connection?
ISDN and ATM are circuit-switched technologies that are used to establish on demand a path through the service provider network.
Data link layer protocols like PPP and HDLC define how data is encapsulated for transmission across a WAN link.
A packet-switching network establishes a dedicated circuit between nodes for the duration of the communication session.
Frame Relay switches are normally considered to be customer premises equipment (CPE) and are maintained by local administrators.
28.
Refer to the exhibit. What is the meaning of the term dynamic in the output of the command?
The bandwidth capability of the interface increases and decreases automatically based on BECNs.
The Serial0/0/1 interface acquired 172.16.3.1 from a DHCP server.
The mapping between DLCI 100 and 172.16.3.1 was learned through Inverse ARP.
DLCI 100 will automatically adapt to changes in the Frame Relay cloud.
29. What is an accurate description of CHAP when used with PPP on a serial connection between two routers?
A username and password are sent to the peer router, which replies with an accept or reject message.
A username and password are sent to the peer router. If these match the configuration in the peer, the peer in turn provides a username and password to the initiating router.
A challenge message is sent to the peer router, which responds with its username and a calculated value based on a shared secret. This value is then compared by the challenger to its own calculations.
An encrypted password is sent to the peer router, which decrypts it and compares it to a shared secret. If the decrypted passwords match, the peer sends the encrypted password back to the initiating router.
30. Which technology is used to dynamically map next hop, network layer addresses to virtual circuits in a Frame Relay network?
Inverse ARP
LMI
DLCI
31.
Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configuration changes. Based on the exhibited command output, what will be the result when attempting to connect to R1?
failure to connect due to Telnet not being enabled
failure to connect due to incomplete configuration for Telnet
a successful connection and ability to make configuration changes
a successful connection but inability to make configuration changes because of the absence of an enable secret password
32. A DHCP server is configured with a block of excluded addresses. What two devices would be assigned static addresses from the excluded address range? (Choose two.)
a protocol analyzer
DNS server for the network
network printer that is used by many different users
a laptop that will get a different address each time it boots up
33.
Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal waste from unused addresses?
/19
/20
/21
/22
/23
/24
34. Compared with IDS systems, what can IPS systems do to provide further protection of computer systems?
detect potential attacks
stop the detected attack from executing
update OS patches for computer systems
scan computer systems for viruses and spyware
35. A company has its headquarters office in Dallas and five branch offices located in New York, Chicago, Los Angeles, Seattle, and Atlanta. WAN links are used for communications among offices in six sites. In planning the WAN links, the network designer is given two requirements: (1) minimize cost and (2) provide a certain level of WAN link reliability with redundant links. Which topology should the network designer recommend?
star
full mesh
hierarchical
partial mesh
36.
Refer to the exhibit. Every time the administrator reboots this router, the boot process ends in setup mode. What is a possible problem?
There is insufficient RAM for the IOS to load on this router.
A password recovery process should be done on this router.
The bootstrap version and the version of the IOS are different.
The IOS image is damaged and must be reloaded using tftpdnld.
The configuration register is set to ignore the startup configuration.
37. An administrator issues the command show interfaces s0/1/0 on a router that is configured for Frame Relay. Which console output may indicate an LMI mismatch?
Serial0/1/0 is administratively down
Serial0/1/0 is up, line protocol is up
Serial0/1/0 is up, line protocol is down
Serial0/1/0 is down, line protocol is down
38.Refer to the exhibit. Users who are connected to R1 report that they are unable to establish connectivity to the users who are connected to router R2. A network administrator tests the link with the debug ppp authentication command. Based on the output shown, which statement correctly defines the problem on the link?
R1 uses PAP as a method of authentication, and R2 uses CHAP.
R1 uses CHAP as a method of authentication, and R2 uses PAP.
R1 uses an incorrect user name or password for CHAP authentication.
R2 uses an incorrect user name or password for PAP authentication.
39. Which IP address and wildcard mask combination can be used in an ACL statement to match the 172.16.0.0/30 network?
172.16.0.0 0.0.0.1
172.16.0.0 0.0.0.3
172.16.0.0 0.0.0.7
172.16.0.0 255.255.255.252
40. A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
reduced jitter
reduced costs
reduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers
41.
Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A has sent a packet to the web server. What is the destination IP address of the return packet from the web server?
10.1.1.2:1234
172.30.20.1:1234
172.30.20.1:3333
192.168.1.2:80
42. What function does LCP perform in the establishment of a PPP session?
LCP brings the network layer protocols up and down.
It carries packets from several network layer protocols.
It encapsulates and negotiates options for IP and IPX.
It negotiates and sets up control options on the WAN data link.
43. An employee of XYZ corporation will begin working from home. The employee has a choice of DSL or cable technology for WAN connectivity. Which connectivity characteristic is accurately described?
Cable transfer rates are dependent on the length of the local loop.
DSL provides a high-speed connection over existing copper phone wires.
DSL download speeds are affected by high usage in the area.
DSL service shares the same frequency range as voice calls.
Cable connectivity usually requires new fiber installed for the local loop.
44. Which option represents a best practice for applying ACLs?
Named ACLs are less efficient than numbered ACLs.
Standard ACLs should be applied inside the core layer.
ACLs applied to outbound interfaces use fewer router resources.
Extended ACLs should be applied closest to the source that is specified by the ACL.
45. While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows “up, line protocol up”. The administrator cannot ping the server. At which layer of the OSI model is the problem most likely to be found?
application layer
network layer
data link layer
physical layer
46. Which two configurations must be completed before an RSA key can be generated on a router? (Choose two.)
a hostname
a domain name
the SSH version
the SSH timeouts
local authentication on the VTY lines
47. What type of ACL can be used to force a user to authenticate to the router before accessing a network?
standard
dynamic
reflexive
time-based
48. What is the result when the command security passwords min-length 8 is entered into a router?
All new passwords are required to be a minimum of 8 characters in length.
All current passwords are now required to be a minimum of 8 characters in length.
Enable passwords must be at least 8 characters but line passwords are unaffected.
Nothing will happen until the command service password-encryption is entered. Then all future passwords must have a minimum of 8 characters.
49. Because of a remote-procedure call failure, a user is unable to access an NFS server. At what layer of the TCP/IP model does this problem occur?
network layer
data link layer
physical layer
application layer
50. What is the result when the command permit tcp 10.25.132.0 0.0.0.255 any eq smtp is added to a named access control list and applied on the inbound interface of a router?
TCP traffic with a destination to the 10.25.132.0/24 is permitted.
Only Telnet traffic is permitted to the 10.24.132.0/24 network
Ttraffic from 10.25.132.0/24 is permitted to anywhere on using any port.
Traffic using port 25 from the 10.25.132.0/24 is permitted to all destinations.
—————
1.Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?
interface reset
unplugged cable
improper LMI type
PPP negotiation failure
2. Refer to the exhibit. A network administrator is tasked with completing the Frame Relay topology that interconnects two remote sites. How should the point-to-point subinterfaces be configured on HQ to complete the topology?
frame-relay interface-dlci 103 on Serial 0/0/0.1
frame-relay interface-dlci 203 on Serial 0/0/0.2
frame-relay interface-dlci 301 on Serial 0/0/0.1
frame-relay interface-dlci 302 on Serial 0/0/0.2
frame-relay map ip 192.168.1.1 103 broadcast on Serial 0/0/0.1
frame-relay map ip 192.168.2.2 203 broadcast on Serial 0/0/0.2
frame-relay map ip 192.168.1.1 301 broadcast on Serial 0/0/0.1
frame-relay map ip 192.168.2.2 302 broadcast on Serial 0/0/0.2
3. Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?
ATM
Frame Relay
HDLC
PPP
SDLC
4. Refer to the exhibit. Company ABC expanded its business and recently opened a new branch office in another country. IPv6 addresses have been used for the company network. The data servers Server1 and Server2 run applications which require end-to-end functionality, with unmodified packets that are forwarded from the source to the destination. The edge routers R1 and R2 support dual stack configuration. What solution should be deployed at the edge of the company network in order to successfully interconnect both offices?
a new WAN service supporting only IPv6
NAT overload to map inside IPv6 addresses to outside IPv4 address
a manually configured IPv6 tunnel between the edge routers R1 and R2
static NAT to map inside IPv6 addresses of the servers to an outside IPv4 ddress and dynamic NAT for the rest of the inside IPv6 addresses
5. Which variable is permitted or denied by a standard access control list?
protocol type
source IP address
source MAC address
destination IP address
destination MAC address
6. Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the exhibit. Why are the routers unable to establish a PPP session?
The clock rate must be 56000.
The usernames are misconfigured.
The IP addresses are on different subnets.
The clock rate is configured on the wrong end of the link.
The CHAP passwords must be different on the two routers.
Interface serial 0/0/0 on CTRL must connect to interface serial 0/0/1 on BR_1.
7. Which three statements accurately describe a security policy? (Choose three.)
It creates a basis for legal action if necessary.
It defines a process for managing security violations.
It defines acceptable and unacceptable use of network resources.
The remote access policy is a component of the security policy that governs acceptable use of e-mail systems.
It is kept private from users to prevent the possibility of circumventing security measures.
It provides step-by-step procedures to harden routers and other network devices.
8. A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.
9.
Refer to the exhibit. Headquarters is connected through the Internet to branch office A and branch office B. Which WAN technology would be best suited to provide secure connectivity between headquarters and both branch offices?
ATM
VPN
ISDN
Frame Relay
broadband DSL
10. Which statement about a VPN is true?
VPN link establishment and maintenance is provided by LCP.
DLCI addresses are used to identify each end of the VPN tunnel.
VPNs use virtual Layer 3 connections that are routed through the Internet.
Only IP packets can be encapsulated by a VPN for tunneling through the Internet.
11. A company is deciding which WAN connection type it should implement between its main office and branch offices. The company wants to use a cost-effective service that provides virtual circuits between each office. The company also wants to be able to transmit variable-length packets on these circuits. Which solution best meets these requirements?
ATM
HDLC
ISDN
Frame Relay
12. A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?
Company 1 only uses microfilters at branch locations.
Company 1 has a lower volume of POTS traffic than company 2 has.
Company 2 is located farther from the service provider than company 1 is.
Company 2 shares the connection to the DSLAM with more clients than company 1 shares with.
13. Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the DC router to the Orlando router?
DLCI 123
DLCI 321
10.10.10.25
10.10.10.26
MAC address of the Orlando router
14. Refer to the exhibit. This router is being configured to use SDM, but the SDM interface of the router cannot be accessed. What is the cause of the problem?
The VTY lines are not configured correctly.
The HTTP timeout policy is not configured correctly.
The authentication method is not configured correctly.
The username and password are not configured correctly.
15. Which two devices can be used by teleworkers who need to connect to the company network across the PSTN for a few hours a day? (Choose two.)
router
CSU/DSU
DSL modem
cable modem
access server
dialup modem
16. An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology.
Incorrect IPv4 addresses are entered on the router interfaces.
RIPng is incompatible with dual-stack technology.
IPv4 is incompatible with RIPng.
17. What is the function of an intrusion detection system on a network?
to restrict access to only authorized users
to detect attacks against a network and send logs to a management console
to prevents attack against the network and provide active defense mechanisms
to detect and prevent most viruses and many Trojan horse applications from spreading in the network
18. Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What is the cause of the problem?
The default gateway is in the wrong subnet.
STP has blocked the port that PC1 is connected to.
Port Fa0/2 on S2 is assigned to the wrong VLAN.
S2 has the wrong IP address assigned to the VLAN30 interface.
19. When Frame Relay encapsulation is used, what feature provides flow control and exchanges information about the status of virtual circuits?
LCP
LMI
DLCI
Inverse ARP
20. A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
Configure DHCP and static NAT.
Configure dynamic NAT for ten users.
Configure static NAT for all ten users.
Configure dynamic NAT with overload.
21. A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
reduced jitter
reduced costs
reduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers
22. What will be the result of adding the command ip dhcp excluded-address 192.168.24.1 192.168.24.5 to the configuration of a local router that has been configured as a DHCP server?
Traffic that is destined for 192.168.24.1 and 192.168.24.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 192.168.24.1 and 192.168.24.5.
The DHCP server will not issue the addresses ranging from 192.168.24.1 to 192.168.24.5.
The router will ignore all traffic that comes from the DHCP servers with addresses 192.168.24.1 and 192.168.24.5.
23. Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from the DHCP server. The output of the debug ip dhcp server command shows “DHCPD: there is no address pool for 192.168.3.17″. What is the problem?
The address 192.168.3.17 address is already in use by Fa0/0.
The pool of addresses for the 192Network pool is configured incorrectly.
The ip helper-address command should be used on the Fa0/0 interface.
The 192.168.3.17 address has not been excluded from the 192Network pool.
24. Refer to the exhibit. From the output of the show interfaces and ping commands, at which layer of the OSI model is a fault indicated?
application
transport
network
data link
physical
25. What three questions can be answered using data gathered from a baseline on a new network? (Choose three.)
Are areas of the network experiencing high error rates?
Will the disaster recovery procedures work correctly?
What parts of the network have the highest volume?
Does the organization require more network technicians?
How does the network perform during peak periods?
Are there any devices working at top capacity?
What networks are the most susceptible to security attacks?
26. Which type of ACL will permit traffic inbound into a private network only if an outbound session has already been established between the source and destination?
extended
reflexive
standard
time-based
27. Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A has sent a packet to Web Server. What is the destination IP address of the return packet from Web Server when received at R1?
10.1.1.2:80
10.1.1.2:1234
172.30.20.1:1234
172.30.20.1:3333
28. An administrator issues the command show interfaces s0/1/0 on a router that is configured for Frame Relay. Which console output may indicate an LMI mismatch?
Serial0/1/0 is administratively down
Serial0/1/0 is up, line protocol is up
Serial0/1/0 is up, line protocol is down
Serial0/1/0 is down, line protocol is down
29. A recently patched application server is experiencing response time problems. The network on which the application server is located has been experiencing occasional outages that the network team believes may be related to recent routing changes. Network and application teams have been notified to work on their respective issues. Which statement applies to this situation?
Only results from the software package should be tested as the network is designed to accommodate the proposed software platform.
Scheduling will be easy if the network and software teams work independently.
It will be difficult to isolate the problem if two teams are implementing changes independently.
Results from changes will be easier to reconcile and document if each team works in isolation.
30.
Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?
The PVC to R1 must be point-to-point.
LMI types must match on each end of a PVC.
The frame relay PVCs cannot be established between Cisco and non-Cisco routers.
The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.
31. Refer to the exhibit. Which VLAN will carry untagged traffic on FastEthernet 0/1?
VLAN 1
VLAN 2
VLAN 11
VLAN 12
VLAN 30
VLAN 999
32. What is an accurate description of CHAP when used with PPP on a serial connection between two routers?
A username and password are sent to the peer router, which replies with an accept or reject message.
A username and password are sent to the peer router. If these match the configuration in the peer, the peer in turn provides a username and password to the initiating router.
A challenge message is sent to the peer router, which responds with its username and a calculated value based on a shared secret. This value is then compared by the challenger to its own calculations.
An encrypted password is sent to the peer router, which decrypts it and compares it to a shared secret. If the decrypted passwords match, the peer sends the encrypted password back to the initiating router.
33. Where does a service provider assume responsibility from a customer for a WAN connection?
local loop
DTE cable on router
demarcation point
demilitarized zone
34. Refer to the exhibit. An ACL called Managers already exists on this router. What happens if the network administrator issues the commands as shown in the exhibit?
The commands are added to the end of the existing ACL.
The existing Managers ACL will be overwritten by the new ACL.
The router will output an error message and no changes will be made.
A duplicate Managers ACL will be created that will contain only the new commands.
35. Which statement is true about PAP in the authentication of a PPP session?
PAP uses a two-way handshake.
The password is unique and random.
PAP conducts periodic password challenges.
PAP uses MD5 hashing to keep the password secure.
36. Which combination of Layer 2 protocol and authentication should be used to establish a link without sending authentication information in plain text between a Cisco and a non-Cisco router?
PPP with PAP
PPP with CHAP
HDLC with PAP
HDLC with CHAP
37. Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider?
BE
DE
CIR
CBIR
38. Which wireless solution can provide mobile users with non line-of-sight broadband Internet access at speeds comparable to DSL or cable?
Wi-Fi
WiMAX
satellite
Metro Ethernet
39. Refer to the exhibit. EIGRP has been configured as a routing protocol on the network. Users on the 192.168.1.0/24 network should have full access to the web server that is connected to 192.168.3.0/24 but should not be allowed to telnet to router R3. Verifying the configuration, the network administrator realizes that users on network 192.168.1.0/24 can successfully telnet to the router. What should be done to remedy the problem?
The ACL 101 statements 10 and 20 should be reversed.
The ACL 101 should be applied on R3 VTY lines 0 4 in the inbound direction.
The ACL 101 should be applied on R3 VTY lines 0 4 in the outbound direction.
The ACL 101 should be applied on R3 Serial0/0/1 interface in the outbound direction.
The ACL 101 statement 10 should be changed to: permit ip 192.168.1.0 0.0.0.255 any
40. What does an access control list determine when used with NAT on a Cisco router?
addresses that are to be translated
addresses that are assigned to a NAT pool
addresses that are allowed out of the router
addresses that are accessible from the inside network
41. Which IP address and wildcard mask combination can be used in an ACL statement to match the 172.16.0.0/30 network?
172.16.0.0 0.0.0.1
172.16.0.0 0.0.0.3
172.16.0.0 0.0.0.7
172.16.0.0 255.255.255.252
42. Which security solution has the responsibility of monitoring suspicious processes that are running on a host and that might indicate infection of Trojan horse applications?
antivirus application
operating system patches
intrusion prevention system
Cisco Adaptive Security Appliance
43. Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configuration changes. Based on the exhibited command output, what will be the result when attempting to connect to R1?
failure to connect due to Telnet not being enabled
failure to connect due to incomplete configuration for Telnet
a successful connection and ability to make configuration changes
a successful connection but inability to make configuration changes because of the absence of an enable secret password
44. Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?
There is a Layer 2 loop.
The VTP domain names do not match.
Only one switch can be in server mode.
S2 has a higher spanning-tree priority for VLAN 11 than S1 does.
45. A technician has been asked to run the Cisco SDM one-step lockdown on a customer router. What will be the result of this process?
Traffic is only accepted from and forwarded to SDM-trusted Cisco routers.
Security testing is performed and the results are saved as a text file stored in NVRAM.
All traffic that enters the router is quarantined and checked for viruses before being forwarded.
The router is tested for any potential security problems and all recommended security-related configuration changes will be automatically applied.
46. Refer to the exhibit. Which data transmission technology is being represented?
TDM
PPP
HDLC
SLIP
47. A network administrator is instructing a technician on best practices for applying ACLs. Which two suggestions should the administrator provide? (Choose two.)
Named ACLs are less efficient than numbered ACLs.
Standard ACLs should be applied inside the core layer.
Place standard ACLs as close to the destination as possible.
ACLs applied to outbound interfaces require fewer router resources.
Extended ACLs should be applied closest to the source that is specified by the ACL.
48.Refer to the exhibit. Which configuration command would result in the output in the exhibit?
ip nat inside source static 10.1.200.254 172.16.76.3
ip nat inside source static 10.1.200.254 192.168.0.10
ip nat inside source static 172.16.76.3 10.1.200.254
ip nat inside source static 172.16.76.3 192.168.0.10
ip nat inside source static 192.168.0.10 172.16.76.3
ip nat inside source static 192.168.0.10 10.1.200.254
49. What are three important reasons to establish a network baseline? (Choose three.)
to determine the time it takes for the network to self recover from a failure
to determine which areas in the network are underutilized or overutilized
to determine the performance of the network during the normal hours of operation
to determine what thresholds should be set for the devices that need to be monitored
to determine the areas in the network which should not be included in the monitoring process
to determine the number of users whose access to network resources should be restricted
50. Which two statements are true about creating and applying access lists? (Choose two.)
There is an implicit deny at the end of all access lists.
One access list per port, per protocol, per direction is permitted.
Access list entries should filter in the order from general to specific.
The term “inbound” refers to traffic that enters the network from the router interface where the ACL is applied.
Standard ACLs should be applied closest to the source while extended ACLs should be applied closest to the destination.
51. While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows “up, line protocol up”. The administrator cannot ping the server. At which layer of the OSI model is the problem most likely to be found?
application layer
network layer
data link layer
physical layer
52. Refer to the exhibit. Router RT is not receiving routing updates from router RTA. What is causing the problem?
The ip rip authentication key-chain command specifies exam rather than test.
The name of the keystring is not the name of the neighboring router.
The key chains are given the same name on both routers.
The passive-interface command was issued for RTA.
1. Which functions are provided by LCP and NCP as part of the PPP layered architecture?
LCP sets up the PPP connection and its parameters. NCP terminates the PPP connection.
LCP sets up the PPP connection and its parameters. NCP handles higher layer protocol configurations.
LCP includes the link-establishment phase. NCP includes link-maintenance and link-termination phases.
LCP negotiates options for multiple network layer protocols. NCP agrees automatically on encapsulation formats.
2.Refer to the exhibit. EIGRP has been configured on routers R1 and R2. Connectivity across the Frame Relay switch between routers R1 and R2 is successfully verified using the ping command. However, no EIGRP routes are appearing in the routing table. What could be a cause for this failure?
The Frame Relay switch has failed.
The frame-relay map statement is incorrect.
The S0/0/0 interface of router R1 is administratively down.
The S0/0/0 interface of router R2 has an incorrect IP address.
3.Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?
There is a Layer 2 loop.
The VTP domain names do not match.
Only one switch can be in server mode.
S2 has a higher spanning-tree priority for VLAN 11 than S1 does.
4.Refer to the exhibit. A network administrator is considering updating the IOS on Router1. What version of IOS is currently installed on Router1?
1
12.4
15
1841
5.Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the San Jose router to the DC router?
DLCI 103
DLCI 301
172.16.1.18
172.16.1.19
6. A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
reduced jitter
reduced costs
reduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers
7.Refer to the exhibit. Partial results of the show access-lists and show ip interface FastEthernet 0/1 commands for router Router1 are shown. There are no other ACLs in effect. Host A is unable to telnet to host B. Which action will correct the problem but still restrict other traffic between the two networks?
Apply the ACL in the inbound direction.
Apply the ACL on the FastEthernet 0/0 interface.
Reverse the order of the TCP protocol statements in the ACL.
Modify the second entry in the list to permit tcp host 172.16.10.10 any eq telnet .
8. Which combination of authentication and Layer 2 protocol should be used to establish a link between a Cisco and a non-Cisco router without sending authentication information in plain text?
CHAP and HDLC
CHAP and PPP
PAP and HDLC
PAP and PPP
9. Which statement is true about wildcard masks?
A wildcard mask must be created by inverting the subnet mask.
A wildcard mask performs the same function as a subnet mask.
A wildcard mask of 0.0.0.0 means the address should match exactly.
A wildcard mask uses a "1" to identify IP address bits that must be checked.
10.Refer to the exhibit. ACL 120 is configured to allow traffic coming from 192.168.10.0/24 network to go to any destination limited to ports 80 and 443. ACL 130 should allow only requested HTTP traffic to flow back into the network. What additional configuration is needed in order for the access lists to fulfill the requirements?
11.Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?
interface reset
unplugged cable
improper LMI type
PPP negotiation failure
12.
Refer to the exhibit. Which statement about the configuration is true?
10.10.10.1 is most likely assigned to the local LAN interface.
10.10.10.1 through 10.10.10.255 is available to be assigned to users.
All DHCP clients looking for an IP address will use 10.10.10.1 and 10.10.10.2.
All DHCP clients in the 10.10.10.0/24 network will use 10.10.10.2 as the default gateway.
13. Which statement is true about an interface that is configured with the IPv6 address command?
IPv6 traffic-forwarding is enabled on the interface.
A link-local IPv6 address is automatically configured on the interface.
A global unicast IPv6 address is dynamically configured the interface.
Any IPv4 addresses that are assigned to the interface are replaced with an IPv6 address.
14.Refer to the exhibit. Which data transmission technology is being represented?
TDM
PPP
HDLC
SLIP
15. Which statement is true about PAP in the authentication of a PPP session?
PAP uses a two-way handshake.
The password is unique and random.
PAP conducts periodic password challenges.
PAP uses MD5 hashing to keep the password secure.
16. What can a network administrator do to recover from a lost router password?
use the copy tftp: flash: command
boot the router to bootROM mode and enter the b command to load the IOS manually
telnet from another router and issue the show running-config command to view the password
boot the router to ROM monitor mode and configure the router to ignore the startup configuration when it initializes
17. A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
Configure static NAT.
Configure dynamic NAT.
Configure static NAT with overload.
Configure dynamic NAT with overload.
18. Which statement is true about the PPP authentication phase?
CHAP uses a 2-way handshake to exchange the credentials.
PAP can perform continuous authentication after a link is established.
CHAP sends an encrypted username and password during the authentication process.
The authentication phase takes place before the NCP configuration phase begins.
19.Refer to the exhibit. A network administrator is configuring Frame Relay on router HQ. It is desired that each Frame Relay PVC between the routers be in a separate subnet. Which two commands on HQ will accomplish this task for the connection to R1? (Choose two.)
HQ(config)# interface S0/0/0
HQ(config)# interface S0/0/0.1 multipoint
HQ(config)# interface S0/0/0.1 point-to-point
HQ(config-subif)# frame-relay interface dlci 103
HQ(config-subif)# frame-relay interface dlci 301
HQ(config-if)# frame-relay map ip 172.16.1.1 255.255.255.0 301 broadcast
20. Which wildcard mask would specify all IP addresses from 192.168.8.0 through 192.168.15.255?
0.0.0.7
0.0.7.255
0.0.8.255
0.0.15.255
0.0.255.255
21.Refer to the exhibit. WestSW is supposed to send VLAN information to EastSW, but that did not occur. What will force WestSW to send a VLAN update to EastSW?
Change EastSW to be a VTP server.
Reload both WestSW and EastSW at the same time.
Erase the VLAN database on EastSW and reload the switch.
Reset the configuration revision number on EastSW to zero.
Reload EastSW.
22. Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP?
flow control
error control
authentication
synchronous communication
23. Which three guidelines would help contribute to creating a strong password policy? (Choose three.)
Once a good password is created, do not change it.
Deliberately misspell words when creating passwords.
Create passwords that are at least 8 characters in length.
Use combinations of upper case, lower case, and special characters.
Write passwords in locations that can be easily retrieved to avoid being locked out.
Use long words found in the dictionary to make passwords that are easy to remember.
24. Which three physical network problems should be checked when a bottom-up troubleshooting approach has been chosen to troubleshoot network performance? (Choose three.)
cable connectivity
high collision counts
STP failures and loops
address mapping errors
high CPU utilization rates
excess packets that are filtered by the firewall
25. A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.
26.Refer to the exhibit. Users who are connected to R1 report that they are unable to establish connectivity to the users who are connected to router R2. A network administrator tests the link with the debug ppp authentication command. Based on the output shown, which statement correctly defines the problem on the link?
R1 uses PAP as a method of authentication, and R2 uses CHAP.
R1 uses CHAP as a method of authentication, and R2 uses PAP.
R1 uses an incorrect user name or password for CHAP authentication.
R2 uses an incorrect user name or password for PAP authentication.
27.Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What is the cause of the problem?
The default gateway is in the wrong subnet.
STP has blocked the port that PC1 is connected to.
Port Fa0/2 on S2 is assigned to the wrong VLAN.
S2 has the wrong IP address assigned to the VLAN30 interface.
28. What is the result when the command permit tcp 192.168.4.0 0.0.3.255 any eq telnet is entered in an access control list and applied on the inbound interface of a router?
All traffic that originates from 192.168.4.0/24 is permitted.
All TCP traffic is permitted, and all other traffic is denied.
All Telnet traffic from the 192.168.0.0/16 network is permitted.
All traffic from the 192.168.4.0/22 network is permitted on TCP port 23.
29.Refer to the exhibit. Router RT is not receiving routing updates from router RTA. What is causing the problem?
The ip rip authentication key-chain command specifies exam rather than test.
The name of the keystring is not the name of the neighboring router.
The key chains are given the same name on both routers.
The passive-interface command was issued for RTA.
30. An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology.
Incorrect IPv4 addresses are entered on the router interfaces.
RIPng is incompatible with dual-stack technology.
IPv4 is incompatible with RIPng.
31. Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router?
PPP
SLIP
HDLC
Frame Relay
32.Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal waste from unused addresses?
/19
/20
/21
/22
/23
/24
33. A technician has been asked to run Cisco SDM one-step lockdown on the router of a customer. What will be the result of this process?
Traffic is only forwarded from SDM-trusted Cisco routers.
Security testing is performed and the results are saved as a text file stored in NVRAM.
The router is tested for potential security problems and any necessary changes are made.
All traffic entering the router is quarantined and checked for viruses before being forwarded.
34. What translation method will allow a server to always keep the same public address?
static NAT
dynamic NAT
static NAT with overload
dynamic NAT with overload
35. A network administrator is tasked with maintaining two remote locations in the same city. Both locations use the same service provider and have the same service plan for DSL service. When comparing download rates, it is noticed that the location on the East side of town has a faster download rate than the location on the West side of town. How can this be explained?
The West side has a high volume of POTS traffic.
The West side of town is downloading larger packets.
The service provider is closer to the location on the East side.
More clients share a connection to the DSLAM on the West side.
36. A light manufacturing company wishes to replace its DSL service with a non-line-of-sight broadband wireless solution that offers comparable speeds. Which solution should the customer choose?
Wi-Fi
satellite
WiMAX
Metro Ethernet
37.Refer to the exhibit. Company ABC expanded its business and recently opened a new branch office in another country. IPv6 addresses have been used for the company network. The data servers Server1 and Server2 run applications which require end-to-end functionality, with unmodified packets that are forwarded from the source to the destination. The edge routers R1 and R2 support dual stack configuration. What solution should be deployed at the edge of the company network in order to successfully interconnect both offices?
a new WAN service supporting only IPv6
NAT overload to map inside IPv6 addresses to outside IPv4 address
a manually configured IPv6 tunnel between the edge routers R1 and R2
static NAT to map inside IPv6 addresses of the servers to an outside IPv4 address and dynamic NAT for the rest of the inside IPv6 addresses
38.Refer to the exhibit. Which statement correctly describes how Router1 processes an FTP request packet that enters interface S0/0/0, and is destined for an FTP server at IP address 172.16.1.5?
The router matches the incoming packet to the statement that is created by access-list 201 permit ip any any command and allows the packet into the router.
The router reaches the end of ACL 101 without matching a condition and drops the packet because there is no statement that was created by access-list 101 permit ip any any command.
The router matches the incoming packet to the statement that was created by the access-list 101 permit ip any 172.16.1.0 0.0.0.255 command, ignores the remaining statements in ACL 101, and allows the packet into the router.
The router matches the incoming packet to the statement that was created by the access-list 201 deny icmp 172.16.1.0 0.0.0.255 any command, continues comparing the packet to the remaining statements in ACL 201 to ensure that no subsequent statements allow FTP, and then the router drops the packet.
39. Which characteristic of VPN technology prevents the contents of data communications from being read by unauthorized parties?
QoS
latency
reliability
confidentiality
40. Which technology is used to dynamically map next hop, network layer addresses to virtual circuits in a Frame Relay network?
Inverse ARP
LMI
DLCI
FECN
41.Refer to the exhibit. A technician is teaching a trainee to interpret the results of various Frame Relay troubleshooting commands. What conclusion can be drawn from the output that is shown?
Neighboring routers should use DLCI 177 to reach the Branch router.
DLCI 177 will be used to identify all broadcasts that are sent out the Branch router.
The Branch router has the address 192.168.3.1 configured for the S0/0/0 interface.
To reach 192.168.3.1, the Branch router will use the virtual circuit that is identified by DLCI 177.
42. Where does a service provider assume responsibility from a customer for a WAN connection?
local loop
DTE cable on router
demarcation point
demilitarized zone
43. A company has its headquarters office in Dallas and five branch offices located in New York, Chicago, Los Angeles, Seattle, and Atlanta. WAN links are used for communications among offices in six sites. In planning the WAN links, the network designer is given two requirements: (1) minimize cost and (2) provide a certain level of WAN link reliability with redundant links. Which topology should the network designer recommend?
star
full mesh
hierarchical
partial mesh
44.Refer to the exhibit. A system administrator must provide connectivity to a foreign network for ten hosts in a small remote office. The commands that are listed in the exhibit were entered into the router that connects the foreign network. The users in the remote office report occasional failure to connect to resources in the foreign network. What is the likely problem?
The source addresses are not correctly designated.
The translated address pool is not correctly sized.
The access-list command is referencing the wrong addresses.
The wrong interface is designated as the source for translations.
45. An issue of response time has recently arisen on an application server. The new release of a software package has also been installed on the server. The configuration of the network has changed recently. To identify the problem, individuals from both teams responsible for the recent changes begin to investigate the source of the problem. Which statement applies to this situation?
Scheduling will be easy if the network and software teams work independently.
It will be difficult to isolate the problem if two teams are implementing changes independently.
Results from changes will be easier to reconcile and document if each team works in isolation.
Only results from the software package should be tested as the network is designed to accommodate the proposed software platform.
46. Which method is most effective in protecting the routing information that is propagated between routers on the network?
Disable IP source routing.
Configure passive interfaces.
Configure routing protocol authentication.
Secure administrative lines with Secure Shell.
47.
Refer to the exhibit. What happens if the network administrator issues the commands shown when an ACL called Managers already exists on the router?
The commands overwrite the existing Managers ACL.
The commands are added at the end of the existing Managers ACL.
The network administrator receives an error stating that the ACL already exists.
The commands will create a duplicate Managers ACL containing only the new commands being entered.
48. Which statement accurately describes a role that is played in establishing a WAN connection?
ISDN and ATM are circuit-switched technologies that are used to establish on demand a path through the service provider network.
Data link layer protocols like PPP and HDLC define how data is encapsulated for transmission across a WAN link.
A packet-switching network establishes a dedicated circuit between nodes for the duration of the communication session.
Frame Relay switches are normally considered to be customer premises equipment (CPE) and are maintained by local administrators.
49. What are two main components of data confidentiality? (Choose two.)
checksum
digital certificates
encapsulation
encryption
hashing
50. When NAT is in use, what is used to determine the addresses that can be translated on a Cisco router?
access control list
routing protocol
inbound interface
ARP cache
51.Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?
The PVC to R1 must be point-to-point.
LMI types must match on each end of a PVC.
The frame relay PVCs cannot be established between Cisco and non-Cisco routers.
The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.
52.Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 have not received any RIP routing updates. What will fix the issue?
Enable RIP authentication on R2.
Issue the ip directed-broadcast command on R2.
Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.
Enable CDP on R2 so that the other routers will receive routing updates.
53. A network administrator can ping the Perth router, but gets a ‘Password Required but None Set’ message when trying to connect remotely via Telnet. Which command sequence must be applied to the Perth router to allow remote access?
Router(config)# line console 0 Router(config-line)# login Router(config-line)# password cisco
Router(config)# line vty 0 4 Router(config-line)# login Router(config-line)# password cisco
Router(config)# line virtual terminal Router(config-line)# enable login Router(config-line)# password cisco
Router(config)# line vty 0 4 Router(config-line)# enable secret Router(config-line)# password cisco
Router(config)# enable secret cisco Router(config)# enable cisco
54. A router does not load its configuration after a power failure. After running the show startup-configuration command, the administrator finds that the original configuration is intact. What is the cause of this problem?
The configuration register is set for 0×2100.
The configuration register is set for 0×2101.
The configuration register is set for 0×2102.
The configuration register is set for 0×2142. Boot system commands are not configured.
Flash memory is empty causing the router to bypass the configuration in NVRAM
checksum
digital certificates
encapsulation
encryption
hashing
2. Which network component has the primary function of detecting and logging attacks made against the network?
Cisco Security Agent
antivirus software scanner
intrusion detection system
intrusion prevention system
3.
Refer to the exhibit. A network administrator has issued the commands that are shown on Router1 and Router2. A later review of the routing tables reveals that neither router is learning the LAN network of the neighbor router. What is most likely the problem with the RIPng configuration?
The serial interfaces are in different subnets.
The RIPng process is not enabled on interfaces.
The RIPng network command is not configured.
The RIPng processes do not match between Router1 and Router2.
4. Which three guidelines would help contribute to creating a strong password policy? (Choose three.)
Once a good password is created, do not change it.
Deliberately misspell words when creating passwords.
Create passwords that are at least 8 characters in length.
Use combinations of upper case, lower case, and special characters.
Write passwords in locations that can be easily retrieved to avoid being locked out.
Use long words found in the dictionary to make passwords that are easy to remember.
5.
Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the exhibit. Why are the routers unable to establish a PPP session?
The clock rate must be 56000.
The usernames are misconfigured.
The IP addresses are on different subnets.
The clock rate is configured on the wrong end of the link.
The CHAP passwords must be different on the two routers.
Interface serial 0/0/0 on CTRL must connect to interface serial 0/0/1 on BR_1.
6.
Refer to the exhibit. Headquarters is connected through the Internet to branch office A and branch office B. Which WAN technology would be best suited to provide secure connectivity between headquarters and both branch offices?
ATM
VPN
ISDN
Frame Relay
broadband DSL
7. Which combination of authentication and Layer 2 protocol should be used to establish a link between a Cisco and a non-Cisco router without sending authentication information in plain text?
CHAP and HDLC
CHAP and PPP
PAP and HDLC
PAP and PPP
8. A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?
Company 2 downloads larger files than company 1 downloads.
Company 2 must share the connection to the DSLAM with more clients than company 1 shares.
Company 1 is closer to the service provider than is company 2.
Company 1 has a lower volume of POTS traffic than company 2 has.
9.
Refer to the exhibit. The network administrator creates a standard access control list to prohibit traffic from the 192.168.1.0/24 network from reaching the Internet. The access list must still permit the 192.168.1.0/24 network access to the 192.168.2.0 network. On which router interface and in which direction should the access control list be applied?
interface Fa0/0, inbound
interface Fa0/0, outbound
interface S0/0/0, inbound
interface S0/0/0, outbound
10. An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology.
Incorrect IPv4 addresses are entered on the router interfaces.
RIPng is incompatible with dual-stack technology.
IPv4 is incompatible with RIPng.
11.
Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to the TFTP server. He receives the error message that is shown in the exhibit, and cannot ping the TFTP server from R1. What is an action that can help to isolate this problem?
Use correct source file name in the command.
Verify that the TFTP server software is running.
Make sure that there is enough room on the TFTP server for the backup.
Check that R1 has a route to the network where the TFTP server resides.
12.
Refer to the exhibit. Partial results of the show access-lists and show ip interface FastEthernet 0/1 commands for router Router1 are shown. There are no other ACLs in effect. Host A is unable to telnet to host B. Which action will correct the problem but still restrict other traffic between the two networks?
Apply the ACL in the inbound direction.
Apply the ACL on the FastEthernet 0/0 interface.
Reverse the order of the TCP protocol statements in the ACL.
Modify the second entry in the list to permit tcp host 172.16.10.10 any eq telnet .
13. What component of VPN technology combines message text with a key to make the message unreadable by unauthorized receivers?
message hash
user password
RSA signature
encryption algorithm
14. Which variable is permitted or denied by a standard access control list?
protocol type
source IP address
source MAC address
destination IP address
destination MAC address
15.
Refer to the exhibit. An ACL called Managers already exists on this router. What happens if the network administrator issues the commands as shown in the exhibit?
The new ACL overwrites the existing ACL.
The network administrator will receive an error message.
The existing ACL is modified to include the new command.
A second Managers ACL is created that contains only the new command.
16.
Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 have not received any RIP routing updates. What will fix the issue?
Enable RIP authentication on R2.
Issue the ip directed-broadcast command on R2.
Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.
Enable CDP on R2 so that the other routers will receive routing updates.
17. What name is given to the location where a customer network interfaces with a network that is owned by another organization?
CPE
DCE
local loop
demarcation point
18.
Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the Orlando router to the DC router?
DLCI 123
DLCI 321
10.10.10.25
10.10.10.26
MAC address of the DC router
19.
Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?
interface reset
unplugged cable
improper LMI type
PPP negotiation failure
20. What will be the result of adding the command ip dhcp excluded-address 10.10.4.1 10.10.4.5 to the configuration of a local router that has been configured as a DHCP server?
Traffic that is destined for 10.10.4.1 and 10.10.4.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 10.10.4.1 and 10.10.4.5.
The DHCP server will not issue the addresses ranging from 10.10.4.1 to 10.10.4.5.
The router will ignore all traffic that comes from the DHCP servers with addresses 10.10.4.1 and 10.10.4.5.
21. What functionality do access control lists provide when implementing dynamic NAT on a Cisco router?
which addresses are allowed to be accessed from the inside network
which addresses are allowed out of the router
which addresses are assigned to a NAT pool
which addresses are to be translated
22. Which statement about a VPN is true?
VPN link establishment and maintenance is provided by LCP.
DLCI addresses are used to identify each end of the VPN tunnel.
VPNs use virtual Layer 3 connections that are routed through the Internet.
Only IP packets can be encapsulated by a VPN for tunneling through the Internet.
23.
Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?
There is a Layer 2 loop.
The VTP domain names do not match.
Only one switch can be in server mode.
S2 has a higher spanning-tree priority for VLAN 11 than S1 does.
24. An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local mail server IP address successfully from a remote network and can also successfully ping using the mail server name. At which layer of the OSI model is the problem most likely to be found?
physical layer
network layer
data link layer
application layer
25. Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?
ATM
Frame Relay
HDLC
PPP
SDLC
26. A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.
27. Which statement accurately describes a role that is played in establishing a WAN connection?
ISDN and ATM are circuit-switched technologies that are used to establish on demand a path through the service provider network.
Data link layer protocols like PPP and HDLC define how data is encapsulated for transmission across a WAN link.
A packet-switching network establishes a dedicated circuit between nodes for the duration of the communication session.
Frame Relay switches are normally considered to be customer premises equipment (CPE) and are maintained by local administrators.
28.
Refer to the exhibit. What is the meaning of the term dynamic in the output of the command?
The bandwidth capability of the interface increases and decreases automatically based on BECNs.
The Serial0/0/1 interface acquired 172.16.3.1 from a DHCP server.
The mapping between DLCI 100 and 172.16.3.1 was learned through Inverse ARP.
DLCI 100 will automatically adapt to changes in the Frame Relay cloud.
29. What is an accurate description of CHAP when used with PPP on a serial connection between two routers?
A username and password are sent to the peer router, which replies with an accept or reject message.
A username and password are sent to the peer router. If these match the configuration in the peer, the peer in turn provides a username and password to the initiating router.
A challenge message is sent to the peer router, which responds with its username and a calculated value based on a shared secret. This value is then compared by the challenger to its own calculations.
An encrypted password is sent to the peer router, which decrypts it and compares it to a shared secret. If the decrypted passwords match, the peer sends the encrypted password back to the initiating router.
30. Which technology is used to dynamically map next hop, network layer addresses to virtual circuits in a Frame Relay network?
Inverse ARP
LMI
DLCI
31.
Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configuration changes. Based on the exhibited command output, what will be the result when attempting to connect to R1?
failure to connect due to Telnet not being enabled
failure to connect due to incomplete configuration for Telnet
a successful connection and ability to make configuration changes
a successful connection but inability to make configuration changes because of the absence of an enable secret password
32. A DHCP server is configured with a block of excluded addresses. What two devices would be assigned static addresses from the excluded address range? (Choose two.)
a protocol analyzer
DNS server for the network
network printer that is used by many different users
a laptop that will get a different address each time it boots up
33.
Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal waste from unused addresses?
/19
/20
/21
/22
/23
/24
34. Compared with IDS systems, what can IPS systems do to provide further protection of computer systems?
detect potential attacks
stop the detected attack from executing
update OS patches for computer systems
scan computer systems for viruses and spyware
35. A company has its headquarters office in Dallas and five branch offices located in New York, Chicago, Los Angeles, Seattle, and Atlanta. WAN links are used for communications among offices in six sites. In planning the WAN links, the network designer is given two requirements: (1) minimize cost and (2) provide a certain level of WAN link reliability with redundant links. Which topology should the network designer recommend?
star
full mesh
hierarchical
partial mesh
36.
Refer to the exhibit. Every time the administrator reboots this router, the boot process ends in setup mode. What is a possible problem?
There is insufficient RAM for the IOS to load on this router.
A password recovery process should be done on this router.
The bootstrap version and the version of the IOS are different.
The IOS image is damaged and must be reloaded using tftpdnld.
The configuration register is set to ignore the startup configuration.
37. An administrator issues the command show interfaces s0/1/0 on a router that is configured for Frame Relay. Which console output may indicate an LMI mismatch?
Serial0/1/0 is administratively down
Serial0/1/0 is up, line protocol is up
Serial0/1/0 is up, line protocol is down
Serial0/1/0 is down, line protocol is down
38.Refer to the exhibit. Users who are connected to R1 report that they are unable to establish connectivity to the users who are connected to router R2. A network administrator tests the link with the debug ppp authentication command. Based on the output shown, which statement correctly defines the problem on the link?
R1 uses PAP as a method of authentication, and R2 uses CHAP.
R1 uses CHAP as a method of authentication, and R2 uses PAP.
R1 uses an incorrect user name or password for CHAP authentication.
R2 uses an incorrect user name or password for PAP authentication.
39. Which IP address and wildcard mask combination can be used in an ACL statement to match the 172.16.0.0/30 network?
172.16.0.0 0.0.0.1
172.16.0.0 0.0.0.3
172.16.0.0 0.0.0.7
172.16.0.0 255.255.255.252
40. A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
reduced jitter
reduced costs
reduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers
41.
Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A has sent a packet to the web server. What is the destination IP address of the return packet from the web server?
10.1.1.2:1234
172.30.20.1:1234
172.30.20.1:3333
192.168.1.2:80
42. What function does LCP perform in the establishment of a PPP session?
LCP brings the network layer protocols up and down.
It carries packets from several network layer protocols.
It encapsulates and negotiates options for IP and IPX.
It negotiates and sets up control options on the WAN data link.
43. An employee of XYZ corporation will begin working from home. The employee has a choice of DSL or cable technology for WAN connectivity. Which connectivity characteristic is accurately described?
Cable transfer rates are dependent on the length of the local loop.
DSL provides a high-speed connection over existing copper phone wires.
DSL download speeds are affected by high usage in the area.
DSL service shares the same frequency range as voice calls.
Cable connectivity usually requires new fiber installed for the local loop.
44. Which option represents a best practice for applying ACLs?
Named ACLs are less efficient than numbered ACLs.
Standard ACLs should be applied inside the core layer.
ACLs applied to outbound interfaces use fewer router resources.
Extended ACLs should be applied closest to the source that is specified by the ACL.
45. While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows “up, line protocol up”. The administrator cannot ping the server. At which layer of the OSI model is the problem most likely to be found?
application layer
network layer
data link layer
physical layer
46. Which two configurations must be completed before an RSA key can be generated on a router? (Choose two.)
a hostname
a domain name
the SSH version
the SSH timeouts
local authentication on the VTY lines
47. What type of ACL can be used to force a user to authenticate to the router before accessing a network?
standard
dynamic
reflexive
time-based
48. What is the result when the command security passwords min-length 8 is entered into a router?
All new passwords are required to be a minimum of 8 characters in length.
All current passwords are now required to be a minimum of 8 characters in length.
Enable passwords must be at least 8 characters but line passwords are unaffected.
Nothing will happen until the command service password-encryption is entered. Then all future passwords must have a minimum of 8 characters.
49. Because of a remote-procedure call failure, a user is unable to access an NFS server. At what layer of the TCP/IP model does this problem occur?
network layer
data link layer
physical layer
application layer
50. What is the result when the command permit tcp 10.25.132.0 0.0.0.255 any eq smtp is added to a named access control list and applied on the inbound interface of a router?
TCP traffic with a destination to the 10.25.132.0/24 is permitted.
Only Telnet traffic is permitted to the 10.24.132.0/24 network
Ttraffic from 10.25.132.0/24 is permitted to anywhere on using any port.
Traffic using port 25 from the 10.25.132.0/24 is permitted to all destinations.
—————
1.Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?
interface reset
unplugged cable
improper LMI type
PPP negotiation failure
2. Refer to the exhibit. A network administrator is tasked with completing the Frame Relay topology that interconnects two remote sites. How should the point-to-point subinterfaces be configured on HQ to complete the topology?
frame-relay interface-dlci 103 on Serial 0/0/0.1
frame-relay interface-dlci 203 on Serial 0/0/0.2
frame-relay interface-dlci 301 on Serial 0/0/0.1
frame-relay interface-dlci 302 on Serial 0/0/0.2
frame-relay map ip 192.168.1.1 103 broadcast on Serial 0/0/0.1
frame-relay map ip 192.168.2.2 203 broadcast on Serial 0/0/0.2
frame-relay map ip 192.168.1.1 301 broadcast on Serial 0/0/0.1
frame-relay map ip 192.168.2.2 302 broadcast on Serial 0/0/0.2
3. Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?
ATM
Frame Relay
HDLC
PPP
SDLC
4. Refer to the exhibit. Company ABC expanded its business and recently opened a new branch office in another country. IPv6 addresses have been used for the company network. The data servers Server1 and Server2 run applications which require end-to-end functionality, with unmodified packets that are forwarded from the source to the destination. The edge routers R1 and R2 support dual stack configuration. What solution should be deployed at the edge of the company network in order to successfully interconnect both offices?
a new WAN service supporting only IPv6
NAT overload to map inside IPv6 addresses to outside IPv4 address
a manually configured IPv6 tunnel between the edge routers R1 and R2
static NAT to map inside IPv6 addresses of the servers to an outside IPv4 ddress and dynamic NAT for the rest of the inside IPv6 addresses
5. Which variable is permitted or denied by a standard access control list?
protocol type
source IP address
source MAC address
destination IP address
destination MAC address
6. Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the exhibit. Why are the routers unable to establish a PPP session?
The clock rate must be 56000.
The usernames are misconfigured.
The IP addresses are on different subnets.
The clock rate is configured on the wrong end of the link.
The CHAP passwords must be different on the two routers.
Interface serial 0/0/0 on CTRL must connect to interface serial 0/0/1 on BR_1.
7. Which three statements accurately describe a security policy? (Choose three.)
It creates a basis for legal action if necessary.
It defines a process for managing security violations.
It defines acceptable and unacceptable use of network resources.
The remote access policy is a component of the security policy that governs acceptable use of e-mail systems.
It is kept private from users to prevent the possibility of circumventing security measures.
It provides step-by-step procedures to harden routers and other network devices.
8. A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.
9.
Refer to the exhibit. Headquarters is connected through the Internet to branch office A and branch office B. Which WAN technology would be best suited to provide secure connectivity between headquarters and both branch offices?
ATM
VPN
ISDN
Frame Relay
broadband DSL
10. Which statement about a VPN is true?
VPN link establishment and maintenance is provided by LCP.
DLCI addresses are used to identify each end of the VPN tunnel.
VPNs use virtual Layer 3 connections that are routed through the Internet.
Only IP packets can be encapsulated by a VPN for tunneling through the Internet.
11. A company is deciding which WAN connection type it should implement between its main office and branch offices. The company wants to use a cost-effective service that provides virtual circuits between each office. The company also wants to be able to transmit variable-length packets on these circuits. Which solution best meets these requirements?
ATM
HDLC
ISDN
Frame Relay
12. A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?
Company 1 only uses microfilters at branch locations.
Company 1 has a lower volume of POTS traffic than company 2 has.
Company 2 is located farther from the service provider than company 1 is.
Company 2 shares the connection to the DSLAM with more clients than company 1 shares with.
13. Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the DC router to the Orlando router?
DLCI 123
DLCI 321
10.10.10.25
10.10.10.26
MAC address of the Orlando router
14. Refer to the exhibit. This router is being configured to use SDM, but the SDM interface of the router cannot be accessed. What is the cause of the problem?
The VTY lines are not configured correctly.
The HTTP timeout policy is not configured correctly.
The authentication method is not configured correctly.
The username and password are not configured correctly.
15. Which two devices can be used by teleworkers who need to connect to the company network across the PSTN for a few hours a day? (Choose two.)
router
CSU/DSU
DSL modem
cable modem
access server
dialup modem
16. An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology.
Incorrect IPv4 addresses are entered on the router interfaces.
RIPng is incompatible with dual-stack technology.
IPv4 is incompatible with RIPng.
17. What is the function of an intrusion detection system on a network?
to restrict access to only authorized users
to detect attacks against a network and send logs to a management console
to prevents attack against the network and provide active defense mechanisms
to detect and prevent most viruses and many Trojan horse applications from spreading in the network
18. Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What is the cause of the problem?
The default gateway is in the wrong subnet.
STP has blocked the port that PC1 is connected to.
Port Fa0/2 on S2 is assigned to the wrong VLAN.
S2 has the wrong IP address assigned to the VLAN30 interface.
19. When Frame Relay encapsulation is used, what feature provides flow control and exchanges information about the status of virtual circuits?
LCP
LMI
DLCI
Inverse ARP
20. A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
Configure DHCP and static NAT.
Configure dynamic NAT for ten users.
Configure static NAT for all ten users.
Configure dynamic NAT with overload.
21. A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
reduced jitter
reduced costs
reduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers
22. What will be the result of adding the command ip dhcp excluded-address 192.168.24.1 192.168.24.5 to the configuration of a local router that has been configured as a DHCP server?
Traffic that is destined for 192.168.24.1 and 192.168.24.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 192.168.24.1 and 192.168.24.5.
The DHCP server will not issue the addresses ranging from 192.168.24.1 to 192.168.24.5.
The router will ignore all traffic that comes from the DHCP servers with addresses 192.168.24.1 and 192.168.24.5.
23. Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from the DHCP server. The output of the debug ip dhcp server command shows “DHCPD: there is no address pool for 192.168.3.17″. What is the problem?
The address 192.168.3.17 address is already in use by Fa0/0.
The pool of addresses for the 192Network pool is configured incorrectly.
The ip helper-address command should be used on the Fa0/0 interface.
The 192.168.3.17 address has not been excluded from the 192Network pool.
24. Refer to the exhibit. From the output of the show interfaces and ping commands, at which layer of the OSI model is a fault indicated?
application
transport
network
data link
physical
25. What three questions can be answered using data gathered from a baseline on a new network? (Choose three.)
Are areas of the network experiencing high error rates?
Will the disaster recovery procedures work correctly?
What parts of the network have the highest volume?
Does the organization require more network technicians?
How does the network perform during peak periods?
Are there any devices working at top capacity?
What networks are the most susceptible to security attacks?
26. Which type of ACL will permit traffic inbound into a private network only if an outbound session has already been established between the source and destination?
extended
reflexive
standard
time-based
27. Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A has sent a packet to Web Server. What is the destination IP address of the return packet from Web Server when received at R1?
10.1.1.2:80
10.1.1.2:1234
172.30.20.1:1234
172.30.20.1:3333
28. An administrator issues the command show interfaces s0/1/0 on a router that is configured for Frame Relay. Which console output may indicate an LMI mismatch?
Serial0/1/0 is administratively down
Serial0/1/0 is up, line protocol is up
Serial0/1/0 is up, line protocol is down
Serial0/1/0 is down, line protocol is down
29. A recently patched application server is experiencing response time problems. The network on which the application server is located has been experiencing occasional outages that the network team believes may be related to recent routing changes. Network and application teams have been notified to work on their respective issues. Which statement applies to this situation?
Only results from the software package should be tested as the network is designed to accommodate the proposed software platform.
Scheduling will be easy if the network and software teams work independently.
It will be difficult to isolate the problem if two teams are implementing changes independently.
Results from changes will be easier to reconcile and document if each team works in isolation.
30.
Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?
The PVC to R1 must be point-to-point.
LMI types must match on each end of a PVC.
The frame relay PVCs cannot be established between Cisco and non-Cisco routers.
The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.
31. Refer to the exhibit. Which VLAN will carry untagged traffic on FastEthernet 0/1?
VLAN 1
VLAN 2
VLAN 11
VLAN 12
VLAN 30
VLAN 999
32. What is an accurate description of CHAP when used with PPP on a serial connection between two routers?
A username and password are sent to the peer router, which replies with an accept or reject message.
A username and password are sent to the peer router. If these match the configuration in the peer, the peer in turn provides a username and password to the initiating router.
A challenge message is sent to the peer router, which responds with its username and a calculated value based on a shared secret. This value is then compared by the challenger to its own calculations.
An encrypted password is sent to the peer router, which decrypts it and compares it to a shared secret. If the decrypted passwords match, the peer sends the encrypted password back to the initiating router.
33. Where does a service provider assume responsibility from a customer for a WAN connection?
local loop
DTE cable on router
demarcation point
demilitarized zone
34. Refer to the exhibit. An ACL called Managers already exists on this router. What happens if the network administrator issues the commands as shown in the exhibit?
The commands are added to the end of the existing ACL.
The existing Managers ACL will be overwritten by the new ACL.
The router will output an error message and no changes will be made.
A duplicate Managers ACL will be created that will contain only the new commands.
35. Which statement is true about PAP in the authentication of a PPP session?
PAP uses a two-way handshake.
The password is unique and random.
PAP conducts periodic password challenges.
PAP uses MD5 hashing to keep the password secure.
36. Which combination of Layer 2 protocol and authentication should be used to establish a link without sending authentication information in plain text between a Cisco and a non-Cisco router?
PPP with PAP
PPP with CHAP
HDLC with PAP
HDLC with CHAP
37. Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider?
BE
DE
CIR
CBIR
38. Which wireless solution can provide mobile users with non line-of-sight broadband Internet access at speeds comparable to DSL or cable?
Wi-Fi
WiMAX
satellite
Metro Ethernet
39. Refer to the exhibit. EIGRP has been configured as a routing protocol on the network. Users on the 192.168.1.0/24 network should have full access to the web server that is connected to 192.168.3.0/24 but should not be allowed to telnet to router R3. Verifying the configuration, the network administrator realizes that users on network 192.168.1.0/24 can successfully telnet to the router. What should be done to remedy the problem?
The ACL 101 statements 10 and 20 should be reversed.
The ACL 101 should be applied on R3 VTY lines 0 4 in the inbound direction.
The ACL 101 should be applied on R3 VTY lines 0 4 in the outbound direction.
The ACL 101 should be applied on R3 Serial0/0/1 interface in the outbound direction.
The ACL 101 statement 10 should be changed to: permit ip 192.168.1.0 0.0.0.255 any
40. What does an access control list determine when used with NAT on a Cisco router?
addresses that are to be translated
addresses that are assigned to a NAT pool
addresses that are allowed out of the router
addresses that are accessible from the inside network
41. Which IP address and wildcard mask combination can be used in an ACL statement to match the 172.16.0.0/30 network?
172.16.0.0 0.0.0.1
172.16.0.0 0.0.0.3
172.16.0.0 0.0.0.7
172.16.0.0 255.255.255.252
42. Which security solution has the responsibility of monitoring suspicious processes that are running on a host and that might indicate infection of Trojan horse applications?
antivirus application
operating system patches
intrusion prevention system
Cisco Adaptive Security Appliance
43. Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configuration changes. Based on the exhibited command output, what will be the result when attempting to connect to R1?
failure to connect due to Telnet not being enabled
failure to connect due to incomplete configuration for Telnet
a successful connection and ability to make configuration changes
a successful connection but inability to make configuration changes because of the absence of an enable secret password
44. Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?
There is a Layer 2 loop.
The VTP domain names do not match.
Only one switch can be in server mode.
S2 has a higher spanning-tree priority for VLAN 11 than S1 does.
45. A technician has been asked to run the Cisco SDM one-step lockdown on a customer router. What will be the result of this process?
Traffic is only accepted from and forwarded to SDM-trusted Cisco routers.
Security testing is performed and the results are saved as a text file stored in NVRAM.
All traffic that enters the router is quarantined and checked for viruses before being forwarded.
The router is tested for any potential security problems and all recommended security-related configuration changes will be automatically applied.
46. Refer to the exhibit. Which data transmission technology is being represented?
TDM
PPP
HDLC
SLIP
47. A network administrator is instructing a technician on best practices for applying ACLs. Which two suggestions should the administrator provide? (Choose two.)
Named ACLs are less efficient than numbered ACLs.
Standard ACLs should be applied inside the core layer.
Place standard ACLs as close to the destination as possible.
ACLs applied to outbound interfaces require fewer router resources.
Extended ACLs should be applied closest to the source that is specified by the ACL.
48.Refer to the exhibit. Which configuration command would result in the output in the exhibit?
ip nat inside source static 10.1.200.254 172.16.76.3
ip nat inside source static 10.1.200.254 192.168.0.10
ip nat inside source static 172.16.76.3 10.1.200.254
ip nat inside source static 172.16.76.3 192.168.0.10
ip nat inside source static 192.168.0.10 172.16.76.3
ip nat inside source static 192.168.0.10 10.1.200.254
49. What are three important reasons to establish a network baseline? (Choose three.)
to determine the time it takes for the network to self recover from a failure
to determine which areas in the network are underutilized or overutilized
to determine the performance of the network during the normal hours of operation
to determine what thresholds should be set for the devices that need to be monitored
to determine the areas in the network which should not be included in the monitoring process
to determine the number of users whose access to network resources should be restricted
50. Which two statements are true about creating and applying access lists? (Choose two.)
There is an implicit deny at the end of all access lists.
One access list per port, per protocol, per direction is permitted.
Access list entries should filter in the order from general to specific.
The term “inbound” refers to traffic that enters the network from the router interface where the ACL is applied.
Standard ACLs should be applied closest to the source while extended ACLs should be applied closest to the destination.
51. While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows “up, line protocol up”. The administrator cannot ping the server. At which layer of the OSI model is the problem most likely to be found?
application layer
network layer
data link layer
physical layer
52. Refer to the exhibit. Router RT is not receiving routing updates from router RTA. What is causing the problem?
The ip rip authentication key-chain command specifies exam rather than test.
The name of the keystring is not the name of the neighboring router.
The key chains are given the same name on both routers.
The passive-interface command was issued for RTA.
1. Which functions are provided by LCP and NCP as part of the PPP layered architecture?
LCP sets up the PPP connection and its parameters. NCP terminates the PPP connection.
LCP sets up the PPP connection and its parameters. NCP handles higher layer protocol configurations.
LCP includes the link-establishment phase. NCP includes link-maintenance and link-termination phases.
LCP negotiates options for multiple network layer protocols. NCP agrees automatically on encapsulation formats.
2.Refer to the exhibit. EIGRP has been configured on routers R1 and R2. Connectivity across the Frame Relay switch between routers R1 and R2 is successfully verified using the ping command. However, no EIGRP routes are appearing in the routing table. What could be a cause for this failure?
The Frame Relay switch has failed.
The frame-relay map statement is incorrect.
The S0/0/0 interface of router R1 is administratively down.
The S0/0/0 interface of router R2 has an incorrect IP address.
3.Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?
There is a Layer 2 loop.
The VTP domain names do not match.
Only one switch can be in server mode.
S2 has a higher spanning-tree priority for VLAN 11 than S1 does.
4.Refer to the exhibit. A network administrator is considering updating the IOS on Router1. What version of IOS is currently installed on Router1?
1
12.4
15
1841
5.Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the San Jose router to the DC router?
DLCI 103
DLCI 301
172.16.1.18
172.16.1.19
6. A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
reduced jitter
reduced costs
reduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers
7.Refer to the exhibit. Partial results of the show access-lists and show ip interface FastEthernet 0/1 commands for router Router1 are shown. There are no other ACLs in effect. Host A is unable to telnet to host B. Which action will correct the problem but still restrict other traffic between the two networks?
Apply the ACL in the inbound direction.
Apply the ACL on the FastEthernet 0/0 interface.
Reverse the order of the TCP protocol statements in the ACL.
Modify the second entry in the list to permit tcp host 172.16.10.10 any eq telnet .
8. Which combination of authentication and Layer 2 protocol should be used to establish a link between a Cisco and a non-Cisco router without sending authentication information in plain text?
CHAP and HDLC
CHAP and PPP
PAP and HDLC
PAP and PPP
9. Which statement is true about wildcard masks?
A wildcard mask must be created by inverting the subnet mask.
A wildcard mask performs the same function as a subnet mask.
A wildcard mask of 0.0.0.0 means the address should match exactly.
A wildcard mask uses a "1" to identify IP address bits that must be checked.
10.Refer to the exhibit. ACL 120 is configured to allow traffic coming from 192.168.10.0/24 network to go to any destination limited to ports 80 and 443. ACL 130 should allow only requested HTTP traffic to flow back into the network. What additional configuration is needed in order for the access lists to fulfill the requirements?
11.Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?
interface reset
unplugged cable
improper LMI type
PPP negotiation failure
12.
Refer to the exhibit. Which statement about the configuration is true?
10.10.10.1 is most likely assigned to the local LAN interface.
10.10.10.1 through 10.10.10.255 is available to be assigned to users.
All DHCP clients looking for an IP address will use 10.10.10.1 and 10.10.10.2.
All DHCP clients in the 10.10.10.0/24 network will use 10.10.10.2 as the default gateway.
13. Which statement is true about an interface that is configured with the IPv6 address command?
IPv6 traffic-forwarding is enabled on the interface.
A link-local IPv6 address is automatically configured on the interface.
A global unicast IPv6 address is dynamically configured the interface.
Any IPv4 addresses that are assigned to the interface are replaced with an IPv6 address.
14.Refer to the exhibit. Which data transmission technology is being represented?
TDM
PPP
HDLC
SLIP
15. Which statement is true about PAP in the authentication of a PPP session?
PAP uses a two-way handshake.
The password is unique and random.
PAP conducts periodic password challenges.
PAP uses MD5 hashing to keep the password secure.
16. What can a network administrator do to recover from a lost router password?
use the copy tftp: flash: command
boot the router to bootROM mode and enter the b command to load the IOS manually
telnet from another router and issue the show running-config command to view the password
boot the router to ROM monitor mode and configure the router to ignore the startup configuration when it initializes
17. A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
Configure static NAT.
Configure dynamic NAT.
Configure static NAT with overload.
Configure dynamic NAT with overload.
18. Which statement is true about the PPP authentication phase?
CHAP uses a 2-way handshake to exchange the credentials.
PAP can perform continuous authentication after a link is established.
CHAP sends an encrypted username and password during the authentication process.
The authentication phase takes place before the NCP configuration phase begins.
19.Refer to the exhibit. A network administrator is configuring Frame Relay on router HQ. It is desired that each Frame Relay PVC between the routers be in a separate subnet. Which two commands on HQ will accomplish this task for the connection to R1? (Choose two.)
HQ(config)# interface S0/0/0
HQ(config)# interface S0/0/0.1 multipoint
HQ(config)# interface S0/0/0.1 point-to-point
HQ(config-subif)# frame-relay interface dlci 103
HQ(config-subif)# frame-relay interface dlci 301
HQ(config-if)# frame-relay map ip 172.16.1.1 255.255.255.0 301 broadcast
20. Which wildcard mask would specify all IP addresses from 192.168.8.0 through 192.168.15.255?
0.0.0.7
0.0.7.255
0.0.8.255
0.0.15.255
0.0.255.255
21.Refer to the exhibit. WestSW is supposed to send VLAN information to EastSW, but that did not occur. What will force WestSW to send a VLAN update to EastSW?
Change EastSW to be a VTP server.
Reload both WestSW and EastSW at the same time.
Erase the VLAN database on EastSW and reload the switch.
Reset the configuration revision number on EastSW to zero.
Reload EastSW.
22. Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP?
flow control
error control
authentication
synchronous communication
23. Which three guidelines would help contribute to creating a strong password policy? (Choose three.)
Once a good password is created, do not change it.
Deliberately misspell words when creating passwords.
Create passwords that are at least 8 characters in length.
Use combinations of upper case, lower case, and special characters.
Write passwords in locations that can be easily retrieved to avoid being locked out.
Use long words found in the dictionary to make passwords that are easy to remember.
24. Which three physical network problems should be checked when a bottom-up troubleshooting approach has been chosen to troubleshoot network performance? (Choose three.)
cable connectivity
high collision counts
STP failures and loops
address mapping errors
high CPU utilization rates
excess packets that are filtered by the firewall
25. A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.
26.Refer to the exhibit. Users who are connected to R1 report that they are unable to establish connectivity to the users who are connected to router R2. A network administrator tests the link with the debug ppp authentication command. Based on the output shown, which statement correctly defines the problem on the link?
R1 uses PAP as a method of authentication, and R2 uses CHAP.
R1 uses CHAP as a method of authentication, and R2 uses PAP.
R1 uses an incorrect user name or password for CHAP authentication.
R2 uses an incorrect user name or password for PAP authentication.
27.Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What is the cause of the problem?
The default gateway is in the wrong subnet.
STP has blocked the port that PC1 is connected to.
Port Fa0/2 on S2 is assigned to the wrong VLAN.
S2 has the wrong IP address assigned to the VLAN30 interface.
28. What is the result when the command permit tcp 192.168.4.0 0.0.3.255 any eq telnet is entered in an access control list and applied on the inbound interface of a router?
All traffic that originates from 192.168.4.0/24 is permitted.
All TCP traffic is permitted, and all other traffic is denied.
All Telnet traffic from the 192.168.0.0/16 network is permitted.
All traffic from the 192.168.4.0/22 network is permitted on TCP port 23.
29.Refer to the exhibit. Router RT is not receiving routing updates from router RTA. What is causing the problem?
The ip rip authentication key-chain command specifies exam rather than test.
The name of the keystring is not the name of the neighboring router.
The key chains are given the same name on both routers.
The passive-interface command was issued for RTA.
30. An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology.
Incorrect IPv4 addresses are entered on the router interfaces.
RIPng is incompatible with dual-stack technology.
IPv4 is incompatible with RIPng.
31. Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router?
PPP
SLIP
HDLC
Frame Relay
32.Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal waste from unused addresses?
/19
/20
/21
/22
/23
/24
33. A technician has been asked to run Cisco SDM one-step lockdown on the router of a customer. What will be the result of this process?
Traffic is only forwarded from SDM-trusted Cisco routers.
Security testing is performed and the results are saved as a text file stored in NVRAM.
The router is tested for potential security problems and any necessary changes are made.
All traffic entering the router is quarantined and checked for viruses before being forwarded.
34. What translation method will allow a server to always keep the same public address?
static NAT
dynamic NAT
static NAT with overload
dynamic NAT with overload
35. A network administrator is tasked with maintaining two remote locations in the same city. Both locations use the same service provider and have the same service plan for DSL service. When comparing download rates, it is noticed that the location on the East side of town has a faster download rate than the location on the West side of town. How can this be explained?
The West side has a high volume of POTS traffic.
The West side of town is downloading larger packets.
The service provider is closer to the location on the East side.
More clients share a connection to the DSLAM on the West side.
36. A light manufacturing company wishes to replace its DSL service with a non-line-of-sight broadband wireless solution that offers comparable speeds. Which solution should the customer choose?
Wi-Fi
satellite
WiMAX
Metro Ethernet
37.Refer to the exhibit. Company ABC expanded its business and recently opened a new branch office in another country. IPv6 addresses have been used for the company network. The data servers Server1 and Server2 run applications which require end-to-end functionality, with unmodified packets that are forwarded from the source to the destination. The edge routers R1 and R2 support dual stack configuration. What solution should be deployed at the edge of the company network in order to successfully interconnect both offices?
a new WAN service supporting only IPv6
NAT overload to map inside IPv6 addresses to outside IPv4 address
a manually configured IPv6 tunnel between the edge routers R1 and R2
static NAT to map inside IPv6 addresses of the servers to an outside IPv4 address and dynamic NAT for the rest of the inside IPv6 addresses
38.Refer to the exhibit. Which statement correctly describes how Router1 processes an FTP request packet that enters interface S0/0/0, and is destined for an FTP server at IP address 172.16.1.5?
The router matches the incoming packet to the statement that is created by access-list 201 permit ip any any command and allows the packet into the router.
The router reaches the end of ACL 101 without matching a condition and drops the packet because there is no statement that was created by access-list 101 permit ip any any command.
The router matches the incoming packet to the statement that was created by the access-list 101 permit ip any 172.16.1.0 0.0.0.255 command, ignores the remaining statements in ACL 101, and allows the packet into the router.
The router matches the incoming packet to the statement that was created by the access-list 201 deny icmp 172.16.1.0 0.0.0.255 any command, continues comparing the packet to the remaining statements in ACL 201 to ensure that no subsequent statements allow FTP, and then the router drops the packet.
39. Which characteristic of VPN technology prevents the contents of data communications from being read by unauthorized parties?
QoS
latency
reliability
confidentiality
40. Which technology is used to dynamically map next hop, network layer addresses to virtual circuits in a Frame Relay network?
Inverse ARP
LMI
DLCI
FECN
41.Refer to the exhibit. A technician is teaching a trainee to interpret the results of various Frame Relay troubleshooting commands. What conclusion can be drawn from the output that is shown?
Neighboring routers should use DLCI 177 to reach the Branch router.
DLCI 177 will be used to identify all broadcasts that are sent out the Branch router.
The Branch router has the address 192.168.3.1 configured for the S0/0/0 interface.
To reach 192.168.3.1, the Branch router will use the virtual circuit that is identified by DLCI 177.
42. Where does a service provider assume responsibility from a customer for a WAN connection?
local loop
DTE cable on router
demarcation point
demilitarized zone
43. A company has its headquarters office in Dallas and five branch offices located in New York, Chicago, Los Angeles, Seattle, and Atlanta. WAN links are used for communications among offices in six sites. In planning the WAN links, the network designer is given two requirements: (1) minimize cost and (2) provide a certain level of WAN link reliability with redundant links. Which topology should the network designer recommend?
star
full mesh
hierarchical
partial mesh
44.Refer to the exhibit. A system administrator must provide connectivity to a foreign network for ten hosts in a small remote office. The commands that are listed in the exhibit were entered into the router that connects the foreign network. The users in the remote office report occasional failure to connect to resources in the foreign network. What is the likely problem?
The source addresses are not correctly designated.
The translated address pool is not correctly sized.
The access-list command is referencing the wrong addresses.
The wrong interface is designated as the source for translations.
45. An issue of response time has recently arisen on an application server. The new release of a software package has also been installed on the server. The configuration of the network has changed recently. To identify the problem, individuals from both teams responsible for the recent changes begin to investigate the source of the problem. Which statement applies to this situation?
Scheduling will be easy if the network and software teams work independently.
It will be difficult to isolate the problem if two teams are implementing changes independently.
Results from changes will be easier to reconcile and document if each team works in isolation.
Only results from the software package should be tested as the network is designed to accommodate the proposed software platform.
46. Which method is most effective in protecting the routing information that is propagated between routers on the network?
Disable IP source routing.
Configure passive interfaces.
Configure routing protocol authentication.
Secure administrative lines with Secure Shell.
47.
Refer to the exhibit. What happens if the network administrator issues the commands shown when an ACL called Managers already exists on the router?
The commands overwrite the existing Managers ACL.
The commands are added at the end of the existing Managers ACL.
The network administrator receives an error stating that the ACL already exists.
The commands will create a duplicate Managers ACL containing only the new commands being entered.
48. Which statement accurately describes a role that is played in establishing a WAN connection?
ISDN and ATM are circuit-switched technologies that are used to establish on demand a path through the service provider network.
Data link layer protocols like PPP and HDLC define how data is encapsulated for transmission across a WAN link.
A packet-switching network establishes a dedicated circuit between nodes for the duration of the communication session.
Frame Relay switches are normally considered to be customer premises equipment (CPE) and are maintained by local administrators.
49. What are two main components of data confidentiality? (Choose two.)
checksum
digital certificates
encapsulation
encryption
hashing
50. When NAT is in use, what is used to determine the addresses that can be translated on a Cisco router?
access control list
routing protocol
inbound interface
ARP cache
51.Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?
The PVC to R1 must be point-to-point.
LMI types must match on each end of a PVC.
The frame relay PVCs cannot be established between Cisco and non-Cisco routers.
The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.
52.Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 have not received any RIP routing updates. What will fix the issue?
Enable RIP authentication on R2.
Issue the ip directed-broadcast command on R2.
Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.
Enable CDP on R2 so that the other routers will receive routing updates.
53. A network administrator can ping the Perth router, but gets a ‘Password Required but None Set’ message when trying to connect remotely via Telnet. Which command sequence must be applied to the Perth router to allow remote access?
Router(config)# line console 0 Router(config-line)# login Router(config-line)# password cisco
Router(config)# line vty 0 4 Router(config-line)# login Router(config-line)# password cisco
Router(config)# line virtual terminal Router(config-line)# enable login Router(config-line)# password cisco
Router(config)# line vty 0 4 Router(config-line)# enable secret Router(config-line)# password cisco
Router(config)# enable secret cisco Router(config)# enable cisco
54. A router does not load its configuration after a power failure. After running the show startup-configuration command, the administrator finds that the original configuration is intact. What is the cause of this problem?
The configuration register is set for 0×2100.
The configuration register is set for 0×2101.
The configuration register is set for 0×2102.
The configuration register is set for 0×2142. Boot system commands are not configured.
Flash memory is empty causing the router to bypass the configuration in NVRAM
Set-3
1
Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?
ccna 4 final 2012
interface reset
unplugged cable
improper LMI type
PPP negotiation failure
2
Refer to the exhibit. A network administrator is tasked with completing the Frame Relay topology that interconnects two remote sites. How should the point-to-point subinterfaces be configured on HQ to complete the topology?
ccna 4 final 2012
frame-relay interface-dlci 103 on Serial 0/0/0.1
frame-relay interface-dlci 203 on Serial 0/0/0.2
frame-relay interface-dlci 203 on Serial 0/0/0.2
frame-relay interface-dlci 301 on Serial 0/0/0.1
frame-relay interface-dlci 302 on Serial 0/0/0.2
frame-relay interface-dlci 302 on Serial 0/0/0.2
frame-relay map ip 192.168.1.1 103 broadcast on Serial 0/0/0.1
frame-relay map ip 192.168.2.2 203 broadcast on Serial 0/0/0.2
frame-relay map ip 192.168.2.2 203 broadcast on Serial 0/0/0.2
frame-relay map ip 192.168.1.1 301 broadcast on Serial 0/0/0.1
frame-relay map ip 192.168.2.2 302 broadcast on Serial 0/0/0.2
frame-relay map ip 192.168.2.2 302 broadcast on Serial 0/0/0.2
3
Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?
Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?
ATM
Frame Relay
HDLC
PPP
SDLC
4
Refer to the exhibit. Company ABC expanded its business and recently opened a new branch office in another country. IPv6 addresses have been used for the company network. The data servers Server1 and Server2 run applications which require end-to-end functionality, with unmodified packets that are forwarded from the source to the destination. The edge routers R1 and R2 support dual stack configuration. What solution should be deployed at the edge of the company network in order to successfully interconnect both offices?
ccna 4 final 2012
a new WAN service supporting only IPv6
NAT overload to map inside IPv6 addresses to outside IPv4 address
a manually configured IPv6 tunnel between the edge routers R1 and R2
static NAT to map inside IPv6 addresses of the servers to an outside IPv4 address and dynamic NAT for the rest of the inside IPv6 addresses
5
Which variable is permitted or denied by a standard access control list?
Which variable is permitted or denied by a standard access control list?
protocol type
source IP address
source MAC address
destination IP address
destination MAC address
6
Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the exhibit. Why are the routers unable to establish a PPP session?
The clock rate must be 56000.
The usernames are misconfigured.
The IP addresses are on different subnets.
The clock rate is configured on the wrong end of the link.
The CHAP passwords must be different on the two routers.
Interface serial 0/0/0 on CTRL must connect to interface serial 0/0/1 on BR_1.
7
Which three statements accurately describe a security policy? (Choose three.)
Which three statements accurately describe a security policy? (Choose three.)
It creates a basis for legal action if necessary.
It defines a process for managing security violations.
It defines acceptable and unacceptable use of network resources.
The remote access policy is a component of the security policy that governs acceptable use of e-mail systems.
It is kept private from users to prevent the possibility of circumventing security measures.
It provides step-by-step procedures to harden routers and other network devices.
8
A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.
9
Refer to the exhibit. Headquarters is connected through the Internet to branch office A and branch office B. Which WAN technology would be best suited to provide secure connectivity between headquarters and both branch offices?
ccna 4 final 2012
ATM
VPN
ISDN
Frame Relay
broadband DSL
10
Which statement about a VPN is true?
Which statement about a VPN is true?
VPN link establishment and maintenance is provided by LCP.
DLCI addresses are used to identify each end of the VPN tunnel.
VPNs use virtual Layer 3 connections that are routed through the Internet.
Only IP packets can be encapsulated by a VPN for tunneling through the Internet.
11
A company is deciding which WAN connection type it should implement between its main office and branch offices. The company wants to use a cost-effective service that provides virtual circuits between each office. The company also wants to be able to transmit variable-length packets on these circuits. Which solution best meets these requirements?
A company is deciding which WAN connection type it should implement between its main office and branch offices. The company wants to use a cost-effective service that provides virtual circuits between each office. The company also wants to be able to transmit variable-length packets on these circuits. Which solution best meets these requirements?
ATM
HDLC
ISDN
Frame Relay
12
A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?
A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?
Company 1 only uses microfilters at branch locations.
Company 1 has a lower volume of POTS traffic than company 2 has.
Company 2 is located farther from the service provider than company 1 is.
Company 2 shares the connection to the DSLAM with more clients than company 1 shares with.
13
Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the DC router to the Orlando router?
DLCI 123
DLCI 321
10.10.10.25
10.10.10.26
MAC address of the Orlando router
14
Refer to the exhibit. This router is being configured to use SDM, but the SDM interface of the router cannot be accessed. What is the cause of the problem?
The VTY lines are not configured correctly.
The HTTP timeout policy is not configured correctly.
The authentication method is not configured correctly.
The username and password are not configured correctly.
15
Which two devices can be used by teleworkers who need to connect to the company network across the PSTN for a few hours a day? (Choose two.)
Which two devices can be used by teleworkers who need to connect to the company network across the PSTN for a few hours a day? (Choose two.)
router
CSU/DSU
DSL modem
cable modem
access server
dialup modem
16
An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?
An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?
When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology.
Incorrect IPv4 addresses are entered on the router interfaces.
RIPng is incompatible with dual-stack technology.
IPv4 is incompatible with RIPng.
17
What is the function of an intrusion detection system on a network?
What is the function of an intrusion detection system on a network?
to restrict access to only authorized users
to detect attacks against a network and send logs to a management console
to prevents attack against the network and provide active defense mechanisms
to detect and prevent most viruses and many Trojan horse applications from spreading in the network
18
Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What is the cause of the problem?
The default gateway is in the wrong subnet.
STP has blocked the port that PC1 is connected to.
Port Fa0/2 on S2 is assigned to the wrong VLAN.
S2 has the wrong IP address assigned to the VLAN30 interface.
19
When Frame Relay encapsulation is used, what feature provides flow control and exchanges information about the status of virtual circuits?
When Frame Relay encapsulation is used, what feature provides flow control and exchanges information about the status of virtual circuits?
LCP
LMI
DLCI
Inverse ARP
20
A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?
Configure DHCP and static NAT.
Configure dynamic NAT for ten users.
Configure static NAT for all ten users.
Configure dynamic NAT with overload.
21
A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)
reduced jitter
reduced costs
reduced latency
the ability to burst above guaranteed bandwidth
the ability to borrow unused bandwidth from the leased lines of other customers
22
What will be the result of adding the command ip dhcp excluded-address 192.168.24.1 192.168.24.5 to the configuration of a local router that has been configured as a DHCP server?
What will be the result of adding the command ip dhcp excluded-address 192.168.24.1 192.168.24.5 to the configuration of a local router that has been configured as a DHCP server?
Traffic that is destined for 192.168.24.1 and 192.168.24.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 192.168.24.1 and 192.168.24.5.
The DHCP server will not issue the addresses ranging from 192.168.24.1 to 192.168.24.5.
The router will ignore all traffic that comes from the DHCP servers with addresses 192.168.24.1 and 192.168.24.5.
23
Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from the DHCP server. The output of the debug ip dhcp server command shows “DHCPD: there is no address pool for 192.168.3.17″. What is the problem?
The address 192.168.3.17 address is already in use by Fa0/0.
The pool of addresses for the 192Network pool is configured incorrectly.
The ip helper-address command should be used on the Fa0/0 interface.
The 192.168.3.17 address has not been excluded from the 192Network pool.
24
Refer to the exhibit. From the output of the show interfaces and ping commands, at which layer of the OSI model is a fault indicated?
application
transport
network
data link
physical
25
What three questions can be answered using data gathered from a baseline on a new network? (Choose three.)
What three questions can be answered using data gathered from a baseline on a new network? (Choose three.)
Are areas of the network experiencing high error rates?
Will the disaster recovery procedures work correctly?
What parts of the network have the highest volume?
Does the organization require more network technicians?
How does the network perform during peak periods?
Are there any devices working at top capacity?
What networks are the most susceptible to security attacks?
26
Which type of ACL will permit traffic inbound into a private network only if an outbound session has already been established between the source and destination?
Which type of ACL will permit traffic inbound into a private network only if an outbound session has already been established between the source and destination?
extended
reflexive
standard
time-based
27
Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A has sent a packet to Web Server. What is the destination IP address of the return packet from Web Server when received at R1?
10.1.1.2:80
10.1.1.2:1234
172.30.20.1:1234
172.30.20.1:3333
28
An administrator issues the command show interfaces s0/1/0 on a router that is configured for Frame Relay. Which console output may indicate an LMI mismatch?
An administrator issues the command show interfaces s0/1/0 on a router that is configured for Frame Relay. Which console output may indicate an LMI mismatch?
Serial0/1/0 is administratively down
Serial0/1/0 is up, line protocol is up
Serial0/1/0 is up, line protocol is down
Serial0/1/0 is down, line protocol is down
29
A recently patched application server is experiencing response time problems. The network on which the application server is located has been experiencing occasional outages that the network team believes may be related to recent routing changes. Network and application teams have been notified to work on their respective issues. Which statement applies to this situation?
A recently patched application server is experiencing response time problems. The network on which the application server is located has been experiencing occasional outages that the network team believes may be related to recent routing changes. Network and application teams have been notified to work on their respective issues. Which statement applies to this situation?
Only results from the software package should be tested as the network is designed to accommodate the proposed software platform.
Scheduling will be easy if the network and software teams work independently.
It will be difficult to isolate the problem if two teams are implementing changes independently.
Results from changes will be easier to reconcile and document if each team works in isolation.
30
Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?
The PVC to R1 must be point-to-point.
LMI types must match on each end of a PVC.
The frame relay PVCs cannot be established between Cisco and non-Cisco routers.
The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.
31
Refer to the exhibit. Which VLAN will carry untagged traffic on FastEthernet 0/1?
VLAN 1
VLAN 2
VLAN 11
VLAN 12
VLAN 30
VLAN 999
32
What is an accurate description of CHAP when used with PPP on a serial connection between two routers?
What is an accurate description of CHAP when used with PPP on a serial connection between two routers?
A username and password are sent to the peer router, which replies with an accept or reject message.
A username and password are sent to the peer router. If these match the configuration in the peer, the peer in turn provides a username and password to the initiating router.
A challenge message is sent to the peer router, which responds with its username and a calculated value based on a shared secret. This value is then compared by the challenger to its own calculations.
An encrypted password is sent to the peer router, which decrypts it and compares it to a shared secret. If the decrypted passwords match, the peer sends the encrypted password back to the initiating router.
33
Where does a service provider assume responsibility from a customer for a WAN connection?
Where does a service provider assume responsibility from a customer for a WAN connection?
local loop
DTE cable on router
demarcation point
demilitarized zone
34
Refer to the exhibit. An ACL called Managers already exists on this router. What happens if the network administrator issues the commands as shown in the exhibit?
The commands are added to the end of the existing ACL.
The existing Managers ACL will be overwritten by the new ACL.
The router will output an error message and no changes will be made.
A duplicate Managers ACL will be created that will contain only the new commands.
35
Which statement is true about PAP in the authentication of a PPP session?
Which statement is true about PAP in the authentication of a PPP session?
PAP uses a two-way handshake.
The password is unique and random.
PAP conducts periodic password challenges.
PAP uses MD5 hashing to keep the password secure.
36
Which combination of Layer 2 protocol and authentication should be used to establish a link without sending authentication information in plain text between a Cisco and a non-Cisco router?
Which combination of Layer 2 protocol and authentication should be used to establish a link without sending authentication information in plain text between a Cisco and a non-Cisco router?
PPP with PAP
PPP with CHAP
HDLC with PAP
HDLC with CHAP
37
Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider?
Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider?
BE
DE
CIR
CBIR
38
Which wireless solution can provide mobile users with non line-of-sight broadband Internet access at speeds comparable to DSL or cable?
Which wireless solution can provide mobile users with non line-of-sight broadband Internet access at speeds comparable to DSL or cable?
Wi-Fi
WiMAX
satellite
Metro Ethernet
39
Refer to the exhibit. EIGRP has been configured as a routing protocol on the network. Users on the 192.168.1.0/24 network should have full access to the web server that is connected to 192.168.3.0/24 but should not be allowed to telnet to router R3. Verifying the configuration, the network administrator realizes that users on network 192.168.1.0/24 can successfully telnet to the router. What should be done to remedy the problem?
The ACL 101 statements 10 and 20 should be reversed.
The ACL 101 should be applied on R3 VTY lines 0 4 in the inbound direction.
The ACL 101 should be applied on R3 VTY lines 0 4 in the outbound direction.
The ACL 101 should be applied on R3 Serial0/0/1 interface in the outbound direction.
The ACL 101 statement 10 should be changed to: permit ip 192.168.1.0 0.0.0.255 any
40
What does an access control list determine when used with NAT on a Cisco router?
What does an access control list determine when used with NAT on a Cisco router?
addresses that are to be translated
addresses that are assigned to a NAT pool
addresses that are allowed out of the router
addresses that are accessible from the inside network
41
Which IP address and wildcard mask combination can be used in an ACL statement to match the 172.16.0.0/30 network?
Which IP address and wildcard mask combination can be used in an ACL statement to match the 172.16.0.0/30 network?
172.16.0.0 0.0.0.1
172.16.0.0 0.0.0.3
172.16.0.0 0.0.0.7
172.16.0.0 255.255.255.252
42
Which security solution has the responsibility of monitoring suspicious processes that are running on a host and that might indicate infection of Trojan horse applications?
Which security solution has the responsibility of monitoring suspicious processes that are running on a host and that might indicate infection of Trojan horse applications?
antivirus application
operating system patches
intrusion prevention system
Cisco Adaptive Security Appliance
43
Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configuration changes. Based on the exhibited command output, what will be the result when attempting to connect to R1?
failure to connect due to Telnet not being enabled
failure to connect due to incomplete configuration for Telnet
a successful connection and ability to make configuration changes
a successful connection but inability to make configuration changes because of the absence of an enable secret password
44
Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?
There is a Layer 2 loop.
The VTP domain names do not match.
Only one switch can be in server mode.
S2 has a higher spanning-tree priority for VLAN 11 than S1 does.
45
A technician has been asked to run the Cisco SDM one-step lockdown on a customer router. What will be the result of this process?
A technician has been asked to run the Cisco SDM one-step lockdown on a customer router. What will be the result of this process?
Traffic is only accepted from and forwarded to SDM-trusted Cisco routers.
Security testing is performed and the results are saved as a text file stored in NVRAM.
All traffic that enters the router is quarantined and checked for viruses before being forwarded.
The router is tested for any potential security problems and all recommended security-related configuration changes will be automatically applied.
46
Refer to the exhibit. Which data transmission technology is being represented?
TDM
PPP
HDLC
SLIP
47
A network administrator is instructing a technician on best practices for applying ACLs. Which two suggestions should the administrator provide? (Choose two.)
A network administrator is instructing a technician on best practices for applying ACLs. Which two suggestions should the administrator provide? (Choose two.)
Named ACLs are less efficient than numbered ACLs.
Standard ACLs should be applied inside the core layer.
Place standard ACLs as close to the destination as possible.
ACLs applied to outbound interfaces require fewer router resources.
Extended ACLs should be applied closest to the source that is specified by the ACL.
48
Refer to the exhibit. Which configuration command would result in the output in the exhibit?
ip nat inside source static 10.1.200.254 172.16.76.3
ip nat inside source static 10.1.200.254 192.168.0.10
ip nat inside source static 172.16.76.3 10.1.200.254
ip nat inside source static 172.16.76.3 192.168.0.10
ip nat inside source static 192.168.0.10 172.16.76.3
ip nat inside source static 192.168.0.10 10.1.200.254
49
What are three important reasons to establish a network baseline? (Choose three.)
What are three important reasons to establish a network baseline? (Choose three.)
to determine the time it takes for the network to self recover from a failure
to determine which areas in the network are underutilized or overutilized
to determine the performance of the network during the normal hours of operation
to determine what thresholds should be set for the devices that need to be monitored
to determine the areas in the network which should not be included in the monitoring process
to determine the number of users whose access to network resources should be restricted
50
Which two statements are true about creating and applying access lists? (Choose two.)
Which two statements are true about creating and applying access lists? (Choose two.)
There is an implicit deny at the end of all access lists.
One access list per port, per protocol, per direction is permitted.
Access list entries should filter in the order from general to specific.
The term “inbound” refers to traffic that enters the network from the router interface where the ACL is applied.
Standard ACLs should be applied closest to the source while extended ACLs should be applied closest to the destination.
51
While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows “up, line protocol up”. The administrator cannot ping the server. At which layer of the OSI model is the problem most likely to be found?
While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows “up, line protocol up”. The administrator cannot ping the server. At which layer of the OSI model is the problem most likely to be found?
application layer
network layer
data link layer
physical layer
52
Refer to the exhibit. Router RT is not receiving routing updates from router RTA. What is causing the problem?
The ip rip authentication key-chain command specifies exam rather than test.
The name of the keystring is not the name of the neighboring router.
The key chains are given the same name on both routers.
The passive-interface command was issued for RTA.
