CCNA 2 Chapter 9 V4.0 Answers

1. What two actions will the EIGRP DUAL FSM take if a link to a network goes down? (Choose two.)put the route into passive modequery neighbors for a new routesearch routing table for a feasible successorrun the SPF algorithm to find a new successorsearch topology table for a feasible successor

2.

Host 192.168.1.66 in the network illustrated is unable to ping host 192.168.1.130. How must EIGRP be configured to enable connectivity between the two hosts? (Choose two.)

R1(config-router)# network 192.168.1.128

R1(config-router)# auto-summary

R1(config-router)# no auto-summary

R2(config-router)# no auto-summary

R2(config-router)# auto-summary

R2(config-router)# network 192.168.1.64

3.

Refer to the exhibit. The company is using EIGRP with an autonomous system number of 10. Pings between hosts on networks that are connected to router A and those that are connected to router B are successful. However, users on the 192.168.3.0 network are unable to reach users on the 192.168.1.32 network. What is the most likely cause of this problem?

IP classless is enabled and is causing the packet to drop.

The command network 192.168.1.32 was not issued on router C.

The routers are not configured in the same EIGRP routing domain.

Automatic summarization of the networks is causing the subnetted routes to be dropped.

4. What information is maintained in the EIGRP topology database for a destination route? (Choose three.)

the routing protocol

the feasible distance of the route

the highest cost of the route

the SRTT value for the route

the route cost as advertised by the neighboring router

the physical address of the gateway interface

 

5. On a router running EIGRP, what database would maintain a list of feasible successors?

routing table

neighbor table

topology table

adjacency table

 

6.

Refer to the exhibit. What is indicated by the P at the beginning of the topology entry?

the route is in a stable state

the route is a preferred route

DUAL is searching for a better route to this destination

the exit interface is in passive mode and EIGRP advertisements are blocked

 

7. In the command router eigrp 20, what is the purpose of the number 20?

specifies the administrative distance for all EIGRP routes

identifies the autonomous system number this EIGRP process will advertise

determines what metric is added to all advertised routes

indicates the number of addresses in the EIGRP routing domain

 

8.

Refer to the exhibit. In the topology table, what do the numbers 3011840 and 3128695 represent?

the route metric that is applied to those EIGRP routes for this router

the trustworthiness of the routing information source

the composite of the hop count and bandwidth to that destination network

the total metric for that network as advertised by the EIGRP neighbor

 

9. Which two statements describe characteristics of EIGRP? (Choose two.)

EIGRP is a distance vector routing protocol.

EIGRP supports classless routing and VLSM.

EIGRP is classified as a link-state routing protocol.

EIGRP uses TCP for reliable delivery of EIGRP update packets.

With EIGRP, loop-free paths are achieved through the use of hold-down timers.

EIGRP sends a periodic update every 30 minutes.

 

10.

Refer to the exhibit. Network 192.168.0.0/28 goes down. What type of packet does Router2 immediately send to Router1 and Router3?

a query for network 192.168.0.0/28

an acknowledgment packet to 224.0.0.9

an update packet that is sent to 255.255.255.255

a packet that contains the new routing table for R2

unicast update packets to 192.168.1.1 and 192.168.2.1

 

11.

Refer to the exhibit. Which command will advertise the 192.168.1.64/30 network but not the 192.168.1.32 network on router A?

network 192.168.1.0

network 192.168.1.0 255.255.255.0

network 192.168.1.64 0.0.0.3

network 192.168.1.64 0.0.0.7

network 192.168.1.64 0.0.0.255

 

12. What administrative distance would a router assign to a default route in EIGRP that is learned from a source external to the autonomous system?

1

5

70

90

170

190

 

13. In which of the following tables does the EIGRP DUAL algorithm store the primary route to a destination? (Choose two.)

routing

topology

neighbor

path

shortest path

 

14. Which of the following types of routes will be denoted by EX in EIGRP routing table entries? (Choose two.)

routes learned from other routing protocols

routes learned from any non-adjacent EIGRP routers

any route with a hop count metric higher than 224

EIGRP routes that originate in different autonomous systems

all passive routes in the routing table

 

15. Which term defines a collection of networks under the administrative control of a single entity that presents a common routing policy to the Internet?

autonomous system

contiguous networks

process ID

BGP

 

16.

Refer to the exhibit. EIGRP is the only routing protocol enabled on this network. No static routes are configured on this router. What can be concluded about network 198.18.1.0/24 from the exhibited output?

A route to network 198.18.1.0/24 is not listed in the routing table.

Packets that are destined for 198.18.1.0/24 will be forwarded to 198.18.10.6.

EIGRP will perform equal cost load balancing across two paths when forwarding packets to 198.18.1.0/24.

The router with interface 172.16.3.2 is a successor for network 198.18.1.0/24.

 

17.

Refer to the exhibit. All interfaces have been configured with the bandwidths that are shown in the exhibit. Assuming that all routers are using a default configuration of EIGRP as their routing protocol, what path will packets take from the 172.16.1.0/16 network to the 192.168.200.0/24 network?

A,B,E

A,C,E

A,D,E

Packets will load balance across the A,B,E and A,C,E paths.

Packets will load balance across the A,B,E and A,D,E paths.

Packets will load balance across the A,C,E and A,D,E paths.

 

18. By default, which two metrics are used by EIGRP to determine the best path between networks?

MTU

load

delay

bandwidth

reliability

 

19. Which of the following statements describes the bounded updates used by EIGRP?

Bounded updates are sent to all routers within an autonomous system.

Partial updates are sent only to routers that need the information.

The updates are sent to all routers in the routing table.

Updates are bounded by the routers in the topology table.

 

20. The show ip eigrp topology command output on a router displays a successor route and a feasible successor route to network 192.168.1.0/24. In order to reduce processor utilization, what does EIGRP do when the primary route to this network fails?

The router sends query packets to all EIGRP neighbors for a better route to network 192.168.1.0/24.

The DUAL FSM immediately recomputes the algorithm to calculate the next backup route.

Packets that are destined for network 192.168.1.0/24 are sent out the default gateway instead.

The backup route to network 192.168.1.0/24 is installed in the routing table.

 

21.

Refer to the exhibit. Based on the output of show ip eigrp neighbors, what are two possible problems with adjacencies between Router1 and Router2? (Choose two.)

The routers are configured with different EIGRP process IDs.

Automatic summarization was disabled.

The hello timer for R1 was altered.

The serial interfaces for both routers are in different networks.

No feasible successors were found.

 

22.

Refer to the exhibit. This is the debug output from 2 directly connected EIGRP routers. They are not forming an adjacency. What is the cause?

one router is a non-cisco router

they have different autonomous-system numbers

they are using difference sequence numbers

they are sending incorrect hello types

DsmbISP Chapter 9 - (Version 4.1)

Written By Beni Muhaemin on Sunday, April 29, 2012 | 8:02 AM 1. Refer to the exhibit. What are two possible causes for the interface status? (Choose two.)*The encapsulation type is mismatched.*Keepalive messages are not being received.

2. A network administrator is upgrading a Cisco 1841 router by adding a WIC-2T module card. Which show command can the administrator use to verify that the module is correctly recognized by the router?*show version.

3. Which two conditions identify issues that are confined to Layer 1? (Choose two.)*cables that exceed maximum length.*poor termination of cables.

4. Refer to the exhibit. Which three statements are true about the output of the show ip interface brief command? (Choose three.)*FastEthernet0/0 is functioning correctly.*The shutdown command has been applied on Serial0/0.*FastEthernet0/1 is experiencing a Layer 2 network problem.

5. A network administrator plugs a new PC into a switch port. The LED for that port changes to solid green. What statement best describes the current status of the port?*The port is operational and ready to transmit packets.

6. A user is having trouble accessing the Internet. A network administrator begins by verifying that the IP address of the PC is correctly configured. Next the administrator pings the default gateway. Based on this information, what type of troubleshooting method is the administrator

employing?*divide-and-conquer.

7. A user can access any web page on the Internet but cannot access e-mail. What troubleshooting method would be most efficient for troubleshooting this issue?*top-down

8. Which problem is associated with Layer 4 of the OSI model?*A firewall is blocking Telnet packets to a host.

9. An administrator is creating a lab to simulate a WAN connection. During the setup, the administrator notices that there are different encapsulation types on each end of the serial connection. At what layer of the OSI model is this problem occurring?*Layer 2.

10. A PC is able to reach devices that are located both inside and outside the network. However, when trying to reach an FTP server that is located on the same subnet, the PC fails to make a connection. The administrator has several other PCs that are located in the same subnet try a connection to the FTP server and they are successful. Which troubleshooting tool can be used to determine the problem between the PC and the FTP server?*protocol analyzer.

11. Refer to the exhibit. Which IP address is misconfigured and is causing connectivity problems between hosts and servers?*Server2

12. Refer to the exhibit. Users on the 10.12.10.0/24 network are unable to access anyone on the 10.10.10.0/24 network. What two problems exist in the network? (Choose two.)*R2 is using a different version of RIP.*R2 has a missing network statement.

13. Refer to the exhibit. A network administrator is in the process of sending a preconfigured text file to a router. When the administrator pastes the configuration into the router, an error message appears. What is the problem with the IP addressing scheme?*The IP address on FastEthernet0/0 overlaps with the IP on Serial0/1.

14. Refer to the exhibit. Host H1 on the LAN is not able to access the FTP server across the Internet. Which two configuration statements are causing this problem? (Choose two.)*The NAT command on the Fa0/0 interface is applied in the wrong direction.*The NAT command on the S0/0/0 interface is applied in the wrong direction.

15. Refer to the exhibit. The PC is trying to ping router B at 192.168.2.2, but it fails. What is the problem?*The default gateway on the PC should be 192.168.1.1.

16. How many usable host addresses does the 192.168.1.0/25 subnet provide?*126

17. A network technician has isolated a problem at the transport layer of the OSI model. Which question would provide further information about the problem?*Do you have a firewall that is configured on your PC?

Posted by Beni Muhaemin at 8:02 AM

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CCNA 2 Chapter 9 2011 V4.0 Answers 100%

CCNA 2 Chapter 9 2011 V4.0 Answers 100%1. What two actions will the EIGRP DUAL FSM take if a link to a network goes down? (Choose two.)put the route into passive modequery neighbors for a new routesearch routing table for a feasible successorrun the SPF algorithm to find a new successorsearch topology table for a feasible successor

2.

Host 192.168.1.66 in the network illustrated is unable to ping host 192.168.1.130. How must EIGRP be configured to enable connectivity between the two hosts? (Choose two.)R1(config-router)# network 192.168.1.128R1(config-router)# auto-summaryR1(config-router)# no auto-summaryR2(config-router)# no auto-summaryR2(config-router)# auto-summaryR2(config-router)# network 192.168.1.64

3.

Refer to the exhibit. The company is using EIGRP with an autonomous system number of 10. Pings between hosts on networks that are connected to router A and those that are connected to router B are successful.However, users on the 192.168.3.0 network are unable to reach users on the 192.168.1.32 network. What is the most likely cause of this problem?IP classless is enabled and is causing the packet to drop.The command network 192.168.1.32 was not issued on router C.The routers are not configured in the same EIGRP routing domain.Automatic summarization of the networks is causing the subnetted routes to be dropped.

4. What information is maintained in the EIGRP topology database for a destination route? (Choose three.)the routing protocolthe feasible distance of the routethe highest cost of the routethe SRTT value for the routethe route cost as advertised by the neighboring routerthe physical address of the gateway interface

5. On a router running EIGRP, what database would maintain a list of feasible successors?routing tableneighbor tabletopology tableadjacency table

6.

Refer to the exhibit. What is indicated by the P at the beginning of the topology entry?the route is in a stable statethe route is a preferred routeDUAL is searching for a better route to this destinationthe exit interface is in passive mode and EIGRP advertisements are blocked

7. In the command router eigrp 20, what is the purpose of the number 20?specifies the administrative distance for all EIGRP routesidentifies the autonomous system number this EIGRP process will advertisedetermines what metric is added to all advertised routesindicates the number of addresses in the EIGRP routing domain

8.

Refer to the exhibit. In the topology table, what do the numbers 3011840 and 3128695 represent?the route metric that is applied to those EIGRP routes for this routerthe trustworthiness of the routing information sourcethe composite of the hop count and bandwidth to that destination networkthe total metric for that network as advertised by the EIGRP neighbor

9. Which two statements describe characteristics of EIGRP? (Choose two.)EIGRP is a distance vector routing protocol.EIGRP supports classless routing and VLSM.EIGRP is classified as a link-state routing protocol.EIGRP uses TCP for reliable delivery of EIGRP update packets.With EIGRP, loop-free paths are achieved through the use of hold-down timers.EIGRP sends a periodic update every 30 minutes.

10.

Refer to the exhibit. Network 192.168.0.0/28 goes down. What type of packet does Router2 immediately send to Router1 and Router3?a query for network 192.168.0.0/28an acknowledgment packet to 224.0.0.9an update packet that is sent to 255.255.255.255a packet that contains the new routing table for R2unicast update packets to 192.168.1.1 and 192.168.2.1

11.

Refer to the exhibit. Which command will advertise the 192.168.1.64/30 network but not the 192.168.1.32 network on router A?network 192.168.1.0network 192.168.1.0 255.255.255.0network 192.168.1.64 0.0.0.3network 192.168.1.64 0.0.0.7network 192.168.1.64 0.0.0.255

12. What administrative distance would a router assign to a default route in EIGRP that is learned from a source external to the autonomous system?157090

170190

13. In which of the following tables does the EIGRP DUAL algorithm store the primary route to a destination? (Choose two.)routingtopologyneighborpathshortest path

14. Which of the following types of routes will be denoted by EX in EIGRP routing table entries? (Choose two.)routes learned from other routing protocolsroutes learned from any non-adjacent EIGRP routersany route with a hop count metric higher than 224EIGRP routes that originate in different autonomous systemsall passive routes in the routing table

15. Which term defines a collection of networks under the administrative control of a single entity that presents a common routing policy to the Internet?autonomous systemcontiguous networksprocess IDBGP

16.

Refer to the exhibit. EIGRP is the only routing protocol enabled on this network. No static routes are configured on this router. What can be concluded about network 198.18.1.0/24 from the exhibited output?A route to network 198.18.1.0/24 is not listed in the routing table.Packets that are destined for 198.18.1.0/24 will be forwarded to 198.18.10.6.EIGRP will perform equal cost load balancing across two paths when forwarding packets to 198.18.1.0/24.The router with interface 172.16.3.2 is a successor for network 198.18.1.0/24.

17.

Refer to the exhibit. All interfaces have been configured with the bandwidths that are shown in the exhibit. Assuming that all routers are using a default configuration of EIGRP as their routing protocol, what path will packets take from the 172.16.1.0/16 network to the 192.168.200.0/24 network?A,B,EA,C,EA,D,EPackets will load balance across the A,B,E and A,C,E paths.Packets will load balance across the A,B,E and A,D,E paths.Packets will load balance across the A,C,E and A,D,E paths.

18. By default, which two metrics are used by EIGRP to determine the best path between networks?MTUloaddelaybandwidthreliability

19. Which of the following statements describes the bounded updates used by EIGRP?Bounded updates are sent to all routers within an autonomous system.Partial updates are sent only to routers that need the information.The updates are sent to all routers in the routing table.Updates are bounded by the routers in the topology table.

20. The show ip eigrp topology command output on a router displays a successor route and a feasible successor route to network 192.168.1.0/24. In order to reduce processor utilization, what does EIGRP do when the primary route to this network fails?The router sends query packets to all EIGRP neighbors for a better route to network 192.168.1.0/24.The DUAL FSM immediately recomputes the algorithm to calculate the next backup route.Packets that are destined for network 192.168.1.0/24 are sent out the default gateway instead.The backup route to network 192.168.1.0/24 is installed in the routing table.

21.

Refer to the exhibit. Based on the output of show ip eigrp neighbors, what are two possible problems with adjacencies between Router1 and Router2? (Choose two.)The routers are configured with different EIGRP process IDs.Automatic summarization was disabled.The hello timer for R1 was altered.The serial interfaces for both routers are in different networks.No feasible successors were found.

22.

Refer to the exhibit. This is the debug output from 2 directly connected EIGRP routers. They are not forming an adjacency. What is the cause?one router is a non-cisco routerthey have different autonomous-system numbersthey are using difference sequence numbersthey are sending incorrect hello types

Mar 2, 2013CCNA Discovery 2 Chapter 9 V4.1 Answers

DsmbISP Chapter 9 – CCNA Discovery: Working at a Small-to-Medium Business or ISP

(Version 4.1)

1. A user can access any web page on the Internet but cannot access e-mail. What troubleshooting method would be most efficient for troubleshooting this issue?

top-down

bottom-up

divide-and-conquer

impossible to determine from this information

2. Hosts on two separate subnets cannot communicate. The network administrator suspects a missing route in one of the routing tables. Which three commands can be used to help troubleshoot Layer 3 connectivity issues? (Choose three.)

ping

show arp

traceroute

show ip route

show controllers

show cdp neighbor

3. Refer to the exhibit. Host H1 on the LAN is not able to access the FTP server across the Internet. Which two configuration statements are causing this problem? (Choose two.)

There is no route to the Internet.

The IP address on Fa0/0 is incorrect.

The IP address on S0/0/0 is incorrect.

The NAT command on the Fa0/0 interface is applied in the wrong direction.

The NAT command on the S0/0/0 interface is applied in the wrong direction.

4. Refer to the exhibit. Which three statements are true about the output of the show ip interface brief command? (Choose three.)

FastEthernet0/0 is functioning correctly.

The shutdown command has been applied on Serial0/0.

FastEthernet0/0 was configured by the startup-config at bootup.

Serial0/0 is experiencing a Layer 1 network problem.

FastEthernet0/1 is experiencing a Layer 2 network problem.

Because the port is down, Serial0/1 has an IP address that does not show in the output.

5. A user is having trouble accessing the Internet. A network administrator begins by verifying that the IP address of the PC is correctly configured. Next the administrator pings the default gateway. Based on this information, what type of troubleshooting method is the administrator employing?

top-down

bottom-up

divide-and-conquer

impossible to determine from this information

6. Which two conditions identify issues that are confined to Layer 1? (Choose two.)

cables that exceed maximum length

encapsulation errors

viruses and worms that create excessive broadcast traffic

poor termination of cables

receiving "line protocol down" messages on the router console

7. Refer to the exhibit. Users on the 10.12.10.0/24 network are unable to access anyone on the 10.10.10.0/24 network. What two problems exist in the network? (Choose two.)

R2 is using a different version of RIP.

R2 has a missing network statement.

R1 has an incorrect network statement.

R3 has an incorrect network statement.

A routing loop is occurring between all three routers.

8. Refer to the exhibit. Which statement is true regarding the IP address configuration?

Interfaces Fa0/0 and Fa0/1 can be in the same subnet.

Interface Fa0/0 and NetworkA can be in the same subnet.

Interface Fa0/0 and NetworkB can be in the same subnet.

Interface Fa0/1 and NetworkB can be in the same subnet.

9. An ISP help desk technician receives a call from a customer who reports that no one at their business can reach any websites or get their e-mail. After testing the communication line and finding everything fine, the technician instructs the customer to run nslookup from the command prompt. What does the technician suspect is causing the customer’s problem?

improper IP address configuration on the host

hardware failure of the ISR used to connect the customer to the ISP

bad cables or connections at the customer site

failure of DNS to resolve names to IP addresses

10. Refer to the exhibit. The PC is trying to ping router B at 192.168.2.2, but it fails. What is the problem?

The PC is on the wrong subnet.

The default gateway on the PC should be 192.168.1.1.

The default gateway should be 192.168.2.2.

The DNS server is incorrect.

The IP address for Fa0/0 on router A is incorrect.

11. Which problem is associated with Layer 4 of the OSI model?

A firewall is blocking Telnet packets to a host.

A host has an incorrect IP address.

A router has no route to a host.

A host sent a malformed HTTP request.

12. How many usable host addresses does the 192.168.1.0/25 subnet provide?

254

128

127

126

64

62

13. An administrator is creating a lab to simulate a WAN connection. During the setup, the administrator notices that there are different encapsulation types on each end of the serial connection. At what layer of the OSI model is this problem occurring?

Layer 2

Layer 4

Layer 5

Layer 6

14. Refer to the exhibit. Which IP address is misconfigured and is causing connectivity problems between hosts and servers?

HostA

HostB

Server1

Server2

R1 Fa0/0

R1 Fa0/1

15. A network technician has isolated a problem at the transport layer of the OSI model. Which question would provide further information about the problem?

Do you have a firewall that is configured on your PC?

Do you have a link light on your network card?

Is your PC configured to obtain addressing information using DHCP?

What default gateway address is configured in your TCP/IP settings?

Can you ping ccnaanswers.com?

16. A PC is able to reach devices that are located both inside and outside the network. However, when trying to reach an FTP server that is located on the same subnet, the PC fails to make a connection. The administrator has several other PCs that are located in the same subnet try a connection to the FTP server and they are successful. Which troubleshooting tool can be used to determine the problem between the PC and the FTP server?

cable tester

digital multimeter

protocol analyzer

network analyzer

17. A network administrator is upgrading a Cisco 1841 router by adding a WIC-2T module card. Which show command can the administrator use to verify that the module is correctly recognized by the router?

show flash:

show version

show ip route

show startup-configuration

18. A network administrator plugs a new PC into a switch port. The LED for that port changes to solid green. What statement best describes the current status of the port?

There is a duplex mismatch error.

There is a link fault error. This port is unable to forward frames.

The port is operational and ready to transmit packets.

This port has been disabled by management and is unable to forward frames.

The flash memory is busy.

19. Refer to the exhibit. A network administrator is in the process of sending a preconfigured text file to a router. When the administrator pastes the configuration into the router, an error message appears. What is the problem with the IP addressing scheme?

Serial0/0 is configured with a network address.

The IP address on FastEthernet0/0 overlaps with the IP on FastEthernet0/1.

Serial0/1 is configured with a broadcast address.

The IP address on FastEthernet0/0 overlaps with the IP on Serial0/1.

20. Refer to the exhibit. What are two possible causes for the interface status? (Choose two.)

The loopback address is not set.

The encapsulation type is mismatched.

A cable is not attached to the interface.

Keepalive messages are not being received.

The interface is administratively shut down.

20Hosts on two separate subnets cannot communicate. The network administrator suspects a missing route in one of the routing tables. Which three commands can be used to help

troubleshoot Layer 3 connectivity issues? (Choose three.)CorrectResponse

YourResponse

ping

show arp

traceroute

show ip route

show controllers

show cdp neighbor

1

Refer to the exhibit. What are two possible causes for the interface status? (Choose two.)CorrectResponse

YourResponse

The loopback address is not set.

The encapsulation type is mismatched.

A cable is not attached to the interface.

Keepalive messages are not being received.

The interface is administratively shut down.