CCNA 2 Final Exam Quiz

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  • Refer to the exhibit. The output of the show ip route command for three routers on anetwork is displayed. All routers are operational, pings are not blocked on this network,and no default routes are installed. Which two pings will fail? (Choose two.)

    • From R1 to 172.16.1.1
    • From R1 to 192.168.3.1
    • From R2 to 192.168.1.1
    • From R2 to 192.168.3.1
    • From R3 to 192.168.1.1
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About This Quiz

CCNA 2 covers more advanced topics, which are needed for one to pass that final certification exam. How ready do you think you are to tackle it? Take this final exam practice test below and see just how ready you are for the exam. All the best and keep an eye out for more quizzes.

Questions and Answers
  • 2. 

    A network administrator needs to configure a single router to loadbalance the traffic over unequal cost paths. Which routing protocol should the administrator use?

    • EIGRP

    • OSPF

    • RIPv1

    • RIPv2

    Correct Answer
    A. RIPv2
    Explanation
    The network administrator should use RIPv2 to configure the single router to load balance the traffic over unequal cost paths. RIPv2 supports the use of multiple paths with different costs, allowing for load balancing. EIGRP and OSPF also support load balancing, but RIPv2 is a simpler and less resource-intensive option. RIPv1 does not support load balancing at all.

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  • 3. 

    14. Refer to the exhibit. Both routers are using the RIP protocol. Devices on the 192.168.1.1 network can ping the S0/0/0 interface on R2 but cannot ping devices on the 192.168.2.1 network. What is a possible cause of this problem

    • The routers are configured with different versions of RIP

    • R2 is not forwarding the routing updates.

    • The R1 configuration should include the no autosummary command.

    • The maximum path number has been exceeded.

    Correct Answer
    A. The routers are configured with different versions of RIP
    Explanation
    The possible cause of the problem is that the routers are configured with different versions of RIP. RIP version 1 and RIP version 2 are not compatible with each other. If R1 and R2 are using different versions of RIP, they will not be able to exchange routing information properly, leading to the inability to ping devices on the 192.168.2.1 network.

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  • 4. 

    In a complex lab test environment, a router has discovered four paths to 192.168.1.0/24 via the use of the RIP routing process. Which route will be installed in the routing table after the discovery of all four paths?

    • R 192.168.1.0/24 [120/3] via 192.168.110.1, 00:00:17, Serial 0/1/0

    • R 192.168.1.0/24 [120/2] via 192.168.200.1, 00:00:17, Serial 0/0/0

    • R 192.168.1.0/24 [120/1] via 192.168.100.1, 00:00:17, Serial 0/0/1

    • R 192.168.1.0/24 [120/4] via 192.168.101.1, 00:00:17, Serial 0/1/1

    Correct Answer
    A. R 192.168.1.0/24 [120/1] via 192.168.100.1, 00:00:17, Serial 0/0/1
    Explanation
    The route with the lowest administrative distance will be installed in the routing table. In this case, all the routes have the same prefix length (24) and the same metric value (120), but they have different administrative distances. The route with the lowest administrative distance is [120/1] via 192.168.100.1, so it will be installed in the routing table.

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  • 5. 

    Refer to the exhibit. A network administrator accesses router R1 from the console port to configure a newly connected interface. What passwords will the network administrator need to enter to make the connection and the necessary configuration changes?

    • The Cisco123 password only

    • The Cisco789 password only

    • The Cisco001 password only

    • The Cisco001 password and the Cisco789 passwords

    • The Cisco001 password and the Cisco123 passwords

    Correct Answer
    A. The Cisco001 password and the Cisco789 passwords
    Explanation
    The network administrator will need to enter both the Cisco001 password and the Cisco789 passwords to make the connection and the necessary configuration changes.

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  • 6. 

    Refer to the exhibit. A network administrator adds this command to router R1: ip route 192.168.2.0 255.255.255.0 S0/0/0. What is the result of adding this command?

    • This route is automatically propagated throughout the network.

    • The traffic for network 172.16.1.0 is forwarded to network 192.168.2.0

    • A static route is established

    • The traffic for all Class C networks is forwarded to 172.16.1.2.

    Correct Answer
    A. A static route is established
    Explanation
    Adding the command "ip route 192.168.2.0 255.255.255.0 S0/0/0" to router R1 establishes a static route. A static route is a manually configured route that specifies the next-hop IP address or exit interface for a specific network. In this case, the command specifies that any traffic destined for the network 192.168.2.0 with a subnet mask of 255.255.255.0 should be forwarded out of the S0/0/0 interface of router R1. This allows the router to know how to reach the specified network and forward traffic accordingly.

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  • 7. 

    Refer to the exhibit. The router receives a packet that is destined for 192.168.5.79.

    • It will forward the packet via the Serial0/0/1 interface.

    • It will forward the packet via the FastEthernet0/0 interface.

    • It will forward the packet via the Serial0/0/0 interface

    • It will drop the packet

    Correct Answer
    A. It will drop the packet
  • 8. 

    29. Refer to the exhibit. Which two statements are true based on the exhibited output? (Choose two.)

    • The administrative distance of EIGRP has been set to 50.

    • All routes are stable.

    • The show ip eigrp topology command has been run on R1.

    • The serial interface between the two routers is down

    • Each route has one feasible successor.

    Correct Answer(s)
    A. All routes are stable.
    A. The show ip eigrp topology command has been run on R1.
    Explanation
    The given correct answer states that "All routes are stable" and "The show ip eigrp topology command has been run on R1". This can be inferred from the exhibited output, which shows that all routes have a "U" flag indicating that they are stable, and the command "show ip eigrp topology" has been executed on router R1 to display the EIGRP topology information.

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  • 9. 

    Refer to the exhibit. The network administrator has run the show ip protocol command on R1. What can be determined from the exhibited output?

    • The router is using RIPv2.

    • The router is not forwarding routing updates

    • The router is receiving updates for both versions of RIP.

    • The FastEthernet0/0 interface is down

    Correct Answer
    A. The FastEthernet0/0 interface is down
    Explanation
    From the exhibited output of the "show ip protocol" command on R1, it can be determined that the FastEthernet0/0 interface is down.

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  • 10. 

    Refer to the exhibit. The interfaces of all routers are configured for OSPF area 0. R3 can ping R1, but the two routers are unable to establish a neighbor adjacency. What should the network administrator do to troubleshoot this problem?

    • Check if the interfaces of the routers are enabled.

    • Check the hello and dead intervals between the routers.

    • Check the process ID of both routers

    • Check if CDP is enabled on all the routers.

    Correct Answer
    A. Check the hello and dead intervals between the routers.
    Explanation
    To troubleshoot the problem of R3 and R1 not establishing a neighbor adjacency, the network administrator should check the hello and dead intervals between the routers. The hello interval determines how often OSPF routers send hello packets to discover and establish neighbor adjacencies. The dead interval is the time duration after which a router considers a neighbor to be unreachable if it does not receive any hello packets. By checking and adjusting these intervals, the network administrator can ensure that the routers are sending and receiving hello packets at the correct frequency, allowing them to establish a neighbor adjacency.

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  • 11. 

    Which three statements are true regarding the encapsulation and deencapsulation of packets when traveling through a router? (Choose three.)

    • The router modifies the TTL field, decrementing it by one.

    • The router changes the source IP to the IP of the exit interface.

    • The router maintains the same source and destination IP.

    • The router changes the source physical address to the physical address of the exit interface.

    • The router changes the destination IP to the IP of the exit interface.

    Correct Answer(s)
    A. The router modifies the TTL field, decrementing it by one.
    A. The router maintains the same source and destination IP.
    A. The router changes the source physical address to the physical address of the exit interface.
    Explanation
    The first statement is true because routers decrement the Time to Live (TTL) field in the IP header of a packet by one to ensure that the packet does not loop indefinitely in the network.

    The second statement is false because routers do not change the source IP address of a packet. The source IP remains the same throughout the routing process.

    The third statement is true because routers maintain the same source and destination IP addresses. They only modify other fields in the IP header, such as the TTL field.

    The fourth statement is true because routers change the source physical address (MAC address) to the physical address of the exit interface. This is necessary for the packet to be correctly delivered to the next hop.

    The fifth statement is false because routers do not change the destination IP address of a packet. The destination IP remains the same throughout the routing process.

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  • 12. 

    What command would the network administrator apply to a router that is running OSPF to advertise the entire range of addresses included in 172.16.0.0/19 in area 0?

    • R1(config-router)# network 172.16.0.0 0.0.0.255 area 0

    • R1(config-router)# network 172.16.0.0 0.0.3.255 area 0

    • R1(config-router)# network 172.16.0.0 0.0.15.255 area 0

    • R1(config-router)# network 172.16.0.0 0.0.31.255 area 0

    Correct Answer
    A. R1(config-router)# network 172.16.0.0 0.0.31.255 area 0
    Explanation
    The correct answer is R1(config-router)# network 172.16.0.0 0.0.31.255 area 0. This command is used to advertise the entire range of addresses included in the 172.16.0.0/19 network in area 0. The network command is used in OSPF configuration to specify which networks should be advertised by the router. In this case, the 0.0.31.255 wildcard mask is used to include all addresses within the 172.16.0.0/19 network.

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  • 13. 

    Refer to the exhibit. Which path will traffic from the 172.16.1.0/24 network take to get to the 10.0.0.0/24 network?

    • ADC

    • ABC

    • It will load balance the traffic between ADC and ABC

    • It will send the traffic via ABC, and will use ADC as a backup path only when ABC fails.

    Correct Answer
    A. It will load balance the traffic between ADC and ABC
    Explanation
    The given exhibit does not provide any information about the network topology or the routing protocols being used. Therefore, it is not possible to determine the exact path that traffic from the 172.16.1.0/24 network will take to reach the 10.0.0.0/24 network. However, the answer states that the traffic will be load balanced between ADC and ABC, which means that the traffic will be distributed between these two paths.

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  • 14. 

    6. Refer to the exhibit. Pings are failing between HostA and HostB. The network administrator discovers that Router1 does not have a route to the 172.16.0.0 network. Assuming Router2 is configured correctly, which two static routes could be configured on Router1 to enable Host A to reach network 172.16.0.0? (Choose two.)

    • Ip route 172.16.0.0 255.255.0.0 S0/0

    • Ip route 172.16.0.0 255.255.0.0 S0/1

    • Ip route 172.16.0.0 255.255.0.0 192.168.0.1

    • Ip route 172.16.0.0 255.255.0.0 192.168.0.2

    • Ip route 192.168.0.1 172.16.0.0 255.255.0.0 S0/0

    Correct Answer(s)
    A. Ip route 172.16.0.0 255.255.0.0 S0/0
    A. Ip route 172.16.0.0 255.255.0.0 192.168.0.2
    Explanation
    The network administrator can configure two static routes on Router1 to enable Host A to reach network 172.16.0.0. The first static route is "ip route 172.16.0.0 255.255.0.0 S0/0", which specifies that any traffic destined for the 172.16.0.0 network should be sent out of the S0/0 interface. The second static route is "ip route 172.16.0.0 255.255.0.0 192.168.0.2", which specifies that any traffic destined for the 172.16.0.0 network should be forwarded to the next-hop IP address 192.168.0.2. These two static routes will allow Router1 to properly route traffic to the 172.16.0.0 network.

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  • 15. 

    A network administrator has configured a default route on Router_A but it is not being shared with adjacent Router_B and the other routers in the OSPF area. Which command will save the administrator the time and trouble of configuring this default route on Router_B and all of the other routers in the OSPF area?

    • Router_A(config-router)# ospf redistribute default-route

    • Router_B(config-router)# ospf redistribute default-route

    • Router_A(config-router)# default-information originate

    • Router_B(config-router)# default-information originate

    • Router_A(config-router)# ip ospf update-default

    Correct Answer
    A. Router_A(config-router)# default-information originate
    Explanation
    The command "Router_A(config-router)# default-information originate" will save the administrator the time and trouble of configuring the default route on Router_B and all the other routers in the OSPF area. This command allows Router_A to advertise the default route to the other routers in the OSPF area, ensuring that they all have knowledge of the default route without needing to individually configure it on each router.

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  • 16. 

    18. Using default settings, what is the next step in the router boot sequence after the IOS loads from flash?

    • Perform the POST routine

    • Search for a backup IOS in ROM

    • Load the bootstrap program from ROM.

    • Load the running-config file from RAM

    • Locate and load the startup-config file from NVRAM

    Correct Answer
    A. Locate and load the startup-config file from NVRAM
    Explanation
    After the IOS loads from flash, the next step in the router boot sequence is to locate and load the startup-config file from NVRAM. The startup-config file contains the configuration settings for the router, including interface configurations, routing protocols, and other parameters. Loading the startup-config file allows the router to apply the previously saved configuration and restore the router to its previous state.

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  • 17. 

    What is the function of the OSPF LSU packet?

    • Used to confirm receipt of certain types of OSPF packets

    • Used to establish and maintain adjacency with other OSPF routers

    • • used to request more information about any entry in the BDR

    • Used to announce new OSPF information and to reply to certain types of requests

    Correct Answer
    A. Used to announce new OSPF information and to reply to certain types of requests
    Explanation
    The OSPF LSU (Link State Update) packet is used to announce new OSPF information and to reply to certain types of requests. This packet is responsible for distributing link-state information throughout the OSPF network. It is used to update the OSPF database of neighboring routers with new or modified information about the network topology. Additionally, the LSU packet can be used to respond to requests for information from other routers in the network.

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  • 18. 

    Refer to the exhibit. When troubleshooting a network, it is important to interpret the output of various router commands. On the basis of the exhibit, which three statements are true? (Choose three.)

    • The missing information for Blank 1 is the command show ip route

    • The missing information for Blank 1 is the command debug ip route.

    • The missing information for Blank 2 is the number 100

    • The missing information for Blank 2 is the number 120

    • The missing information for Blank 3 is the letter C.

    Correct Answer(s)
    A. The missing information for Blank 1 is the command show ip route
    A. The missing information for Blank 2 is the number 120
    A. The missing information for Blank 3 is the letter C.
    Explanation
    The exhibit shows a network diagram with various router commands. The correct answer states that the missing information for Blank 1 is the command "show ip route", which means that this command needs to be entered to obtain the desired output. The missing information for Blank 2 is the number 120, indicating that this specific value is relevant to the output. Lastly, the missing information for Blank 3 is the letter C, suggesting that this letter represents a specific type of route in the output.

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  • 19. 

    What are two tasks that must be completed before two routers can use OSPF to form a neighbor adjacency? (Choose two.)

    • The routers must elect a designated router.

    • The routers must agree on the network type.

    • The routers must use the same dead interval.

    • The routers must exchange link state requests.

    • The routers must exchange database description packets.

    Correct Answer(s)
    A. The routers must agree on the network type.
    A. The routers must use the same dead interval.
    Explanation
    Before two routers can use OSPF to form a neighbor adjacency, they must first agree on the network type. This is important because OSPF supports different network types such as broadcast, point-to-point, and non-broadcast multi-access networks, and the routers need to be configured with the same network type to establish adjacency. Additionally, the routers must use the same dead interval, which is the time period that OSPF waits before declaring a neighbor as dead. This ensures that both routers have the same timing for detecting and responding to neighbor failures.

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  • 20. 

    3. Refer to exhibit. Given the topology shown in the exhibit, what three commands are needed to configure EIGRP on the Paris router? (Choose three.)

    • Paris(config)# router eigrp 100

    • Paris(config-router)# router eigrp

    • Paris(config-router)# network 192.168.6.0

    • Paris(config-router)# network 192.168.7.0

    • Paris(config-router)# network 192.168.8.0

    Correct Answer(s)
    A. Paris(config)# router eigrp 100
    A. Paris(config-router)# network 192.168.7.0
    A. Paris(config-router)# network 192.168.8.0
    Explanation
    The correct answer is to configure EIGRP on the Paris router, three commands are needed. The first command is "Paris(config)# router eigrp 100" which enters the EIGRP configuration mode and specifies the autonomous system number as 100. The second command is "Paris(config-router)# network 192.168.7.0" which specifies the network address of 192.168.7.0 to be included in the EIGRP routing process. The third command is "Paris(config-router)# network 192.168.8.0" which specifies the network address of 192.168.8.0 to be included in the EIGRP routing process.

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  • 21. 

    11. A router has learned about a network through static and dynamic routing processes. Which route will be used to reach network 192.168.168.0?

    • • D 192.168.168.0/24 [90/2195456] via 192.168.200.1, 00:00:09, Ethernet0

    • O 192.168.168.0/24 [110/1012] via 192.168.200.1, 00:00:22, Ethernet0

    • R 192.168.168.0/24 [120/1] via 192.168.200.1, 00:00:17, Ethernet0

    • S 192.168.168.0/24 [1/0] via 192.168.200.1

    Correct Answer
    A. S 192.168.168.0/24 [1/0] via 192.168.200.1
    Explanation
    The answer is "S 192.168.168.0/24 [1/0] via 192.168.200.1" because it has the lowest administrative distance (1), indicating that it is a directly connected route. Administrative distance is a measure of the trustworthiness of the source of the routing information, with lower values being more trustworthy. In this case, the static and dynamic routes have higher administrative distances, so the directly connected route will be preferred.

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  • 22. 

    Refer to the exhibit. What information can be determined from the highlighted output? R1 is originating the route 172.30.200.32/28.

    • R1 is originating the route 172.30.200.32/28.

    • Automatic summarization is disabled.

    • The 172.30.200.16/28 network is one hop away from R1.

    • A classful routing protocol is being used.

    Correct Answer
    A. Automatic summarization is disabled.
    Explanation
    The highlighted output indicates that automatic summarization is disabled.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
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  • Nov 10, 2009
    Quiz Created by
    Man04

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