Ultimate Quiz CCENT/CCNA Icnd1 Chapters 14 + 15

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Ultimate Quiz CCENT/CCNA Icnd1 Chapters 14 + 15 - Quiz

Now we continue to have a chapter-to-chapter revision for the CCENT/CCNA Icnd1 to help us retail the knowledge gathered so far. The quiz below is for chapter 16 and 17 and is designed to keep you on your feet. Take it up and keep an eye out for a quiz on the next ones.


Questions and Answers
  • 1. 

    Which of the following must be true for a static route to be installed in a router’s IP routing table?

    • A.

      The outgoing interface associated with the route must be in an “up and up” state.

    • B.

      The router must receive a routing update from a neighboring router.

    • C.

      The ip route command must be added to the configuration.

    • D.

      The outgoing interface’s ip address command must use the special keyword.

    Correct Answer(s)
    A. The outgoing interface associated with the route must be in an “up and up” state.
    C. The ip route command must be added to the configuration.
    Explanation
    For a static route to be installed in a router's IP routing table, two conditions must be true. Firstly, the outgoing interface associated with the route must be in an "up and up" state, meaning it is operational and functioning properly. Secondly, the "ip route" command must be added to the router's configuration, specifying the destination network and the next hop address. These two conditions ensure that the router has the necessary information to forward traffic to the specified destination network using the specified outgoing interface.

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  • 2. 

    Which of the following commands correctly configures a static route?

    • A.

      Ip route 10.1.3.0 255.255.255.0 10.1.130.253

    • B.

      Ip route 10.1.3.0 serial 0

    • C.

      Ip route 10.1.3.0 /24 10.1.130.253

    • D.

      Ip route 10.1.3.0 /24 serial 0

    Correct Answer
    A. Ip route 10.1.3.0 255.255.255.0 10.1.130.253
    Explanation
    The correct answer is "ip route 10.1.3.0 255.255.255.0 10.1.130.253" because it uses the correct syntax for configuring a static route. The command specifies the destination network (10.1.3.0), the subnet mask (255.255.255.0), and the next-hop IP address (10.1.130.253). This command correctly sets up a static route for the given network.

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  • 3. 

    Which of the following routing protocols are considered to use distance vector logic?

    • A.

      RIP

    • B.

      IGRP

    • C.

      EIGRP

    • D.

      OSPF

    Correct Answer(s)
    A. RIP
    B. IGRP
    Explanation
    RIP (Routing Information Protocol) and IGRP (Interior Gateway Routing Protocol) are both considered to use distance vector logic. Distance vector routing protocols determine the best path to a destination by considering the distance (or metric) to that destination. RIP and IGRP both use the hop count as their metric, which is the number of routers or hops that a packet must traverse to reach the destination. On the other hand, EIGRP (Enhanced Interior Gateway Routing Protocol) and OSPF (Open Shortest Path First) are examples of link-state routing protocols, which use more advanced algorithms to determine the best path based on factors like bandwidth, delay, and reliability.

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  • 4. 

    Which of the following routing protocols are considered to use link-state logic?

    • A.

      RIP

    • B.

      RIP-2

    • C.

      OSPF

    • D.

      EIGRP

    • E.

      Integrated IS-IS

    Correct Answer(s)
    C. OSPF
    E. Integrated IS-IS
    Explanation
    OSPF (Open Shortest Path First) and Integrated IS-IS (Intermediate System to Intermediate System) are considered to use link-state logic. These routing protocols use a link-state database to maintain information about the network topology. They exchange information with other routers to build a complete map of the network and calculate the shortest path to each destination. RIP (Routing Information Protocol) and RIP-2 (Routing Information Protocol version 2) use distance-vector logic, while EIGRP (Enhanced Interior Gateway Routing Protocol) uses a hybrid approach combining both distance-vector and link-state elements.

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  • 5. 

    Which of the following routing protocols are considered to be capable of converging quickly?

    • A.

      RIP

    • B.

      RIP-2

    • C.

      EIGRP

    • D.

      OSPF

    • E.

      Integrated IS-IS

    Correct Answer(s)
    C. EIGRP
    D. OSPF
    E. Integrated IS-IS
    Explanation
    EIGRP, OSPF, and Integrated IS-IS are considered to be capable of converging quickly because they use advanced algorithms and techniques to calculate the shortest and most efficient paths for data packets. They also have mechanisms in place to quickly detect and respond to changes in the network topology, allowing them to adapt and reroute traffic in a timely manner. This enables these routing protocols to converge quickly and ensure efficient communication within the network.

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  • 6. 

    Router1 has interfaces with addresses 9.1.1.1 and 10.1.1.1. Router2, connected to Router1 over a serial link, has interfaces with addresses 10.1.1.2 and 11.1.1.2. Which of the following commands would be part of a complete RIP Version 2 configuration on Router2, with which Router2 advertises out all interfaces, and about all routes?

    • A.

      Router rip

    • B.

      Network 10.1.1.1

    • C.

      Version 2

    • D.

      Network 10.0.0.0

    • E.

      Network 11.0.0.0

    Correct Answer(s)
    A. Router rip
    C. Version 2
    D. Network 10.0.0.0
    E. Network 11.0.0.0
    Explanation
    The correct answer is "router rip, version 2, network 10.0.0.0, network 11.0.0.0". This answer is correct because it includes the necessary commands to configure RIP Version 2 on Router2. The "router rip" command enables RIP routing protocol on the router. The "version 2" command specifies that RIP Version 2 should be used. The "network 10.0.0.0" command advertises all interfaces with addresses in the 10.0.0.0 network. Similarly, the "network 11.0.0.0" command advertises all interfaces with addresses in the 11.0.0.0 network.

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  • 7. 

    Which of the following network commands, following a router rip command, would cause RIP to send updates out two interfaces whose IP addresses are 10.1.2.1 and 10.1.1.1, mask 255.255.255.0?

    • A.

      Network 10.0.0.0

    • B.

      Network 10.1.1.0 10.1.2.0

    • C.

      Network 10.1.1.1. 10.1.2.1

    • D.

      Network 10.1.0.0 255.255.0.0

    • E.

      You cannot do this with only one network command.

    Correct Answer
    A. Network 10.0.0.0
    Explanation
    The correct answer is "network 10.0.0.0". This command includes a network address of 10.0.0.0, which encompasses both the IP addresses 10.1.2.1 and 10.1.1.1 with the given subnet mask of 255.255.255.0. This allows RIP to send updates out both interfaces.

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  • 8. 

    What command(s) list(s) information identifying the neighboring routers that are sending routing information to a particular router?

    • A.

      Show ip

    • B.

      Show ip protocol

    • C.

      Show ip routing-protocols

    • D.

      Show ip route

    • E.

      Show ip route neighbor

    Correct Answer
    B. Show ip protocol
    Explanation
    The correct answer is "show ip protocol". This command lists information about the routing protocols configured on the router, including the neighboring routers that are sending routing information. It provides details such as the protocol type, neighboring routers' IP addresses, and the status of the routing protocol.

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  • 9. 

    Review the snippet from a show ip route command on a router: R       10.1.2.0 [120/1] via 10.1.128.252, 00:00:13, Serial0/0/1Which of the following statements are true regarding this output? 

    • A.

      The administrative distance is 1.

    • B.

      The administrative distance is 120.

    • C.

      The metric is 1.

    • D.

      The router added this route to the routing table 13 seconds ago.

    • E.

      The router must wait 13 seconds before advertising this route again.

    Correct Answer(s)
    B. The administrative distance is 120.
    C. The metric is 1.
    Explanation
    The given output indicates that the administrative distance for this route is 120, which means it is less preferred compared to routes with lower administrative distances. Additionally, the metric for this route is 1, indicating that it is a desirable route.

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  • 10. 

    Which of the following is a useful command on some Microsoft OSs for discovering a host’s current IP address and mask?

    • A.

      Tracert

    • B.

      Ipconfig /all

    • C.

      Arp –a

    • D.

      Ipconfig /displaydns

    Correct Answer
    B. Ipconfig /all
    Explanation
    The correct answer is ipconfig /all. This command is used to display the IP address and subnet mask of a host on some Microsoft operating systems. It provides detailed information about the network configuration of the host, including the IP address, subnet mask, default gateway, DNS servers, and more. This command is useful for troubleshooting network connectivity issues and for verifying the network configuration of a host.

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  • 11. 

    • A.

      The command would be rejected, and the R1 CLI command prompt would be displayed again.

    • B.

      The CLI user would be connected to a suspended Telnet connection to the router with IP address 10.1.1.1.

    • C.

      The CLI user would be connected to a suspended Telnet connection to the router with IP address 10.1.2.1.

    • D.

      The result cannot be accurately predicted from the information shown.

    Correct Answer
    C. The CLI user would be connected to a suspended Telnet connection to the router with IP address 10.1.2.1.
  • 12. 

    If PC3 were added to the LAN on the left, with IP address 10.1.1.130/25, default gateway 10.1.1.1, which of the following would be true?

    • A.

      If PC1 issued a ping 10.1.1.130 command, PC1 would use ARP to learn PC3’s MAC addres.

    • B.

      If PC3 issued a ping 10.1.1.10 command, PC3 would ARP trying to learn PC1’s MAC address.

    • C.

      If PC1 issued a ping 10.1.13.1 command, PC1 would ARP trying to learn the MAC address of 10.1.13.1.

    • D.

      If R1 issued a ping 10.1.1.130 command, R1 would ARP trying to learn the MAC address of 10.1.1.130.

    Correct Answer(s)
    A. If PC1 issued a ping 10.1.1.130 command, PC1 would use ARP to learn PC3’s MAC addres.
    D. If R1 issued a ping 10.1.1.130 command, R1 would ARP trying to learn the MAC address of 10.1.1.130.
    Explanation
    If PC3 were added to the LAN on the left with the given IP address, PC1 would use ARP to learn PC3's MAC address when issuing a ping command to 10.1.1.130. Similarly, if R1 issued a ping command to 10.1.1.130, R1 would ARP trying to learn the MAC address of 10.1.1.130.

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  • 13. 

    A new network engineer is trying to troubleshoot a problem for the user of PC1. Which of the following tasks and results would most likely point to a Layer 1 or 2 Ethernet problem on the LAN on the left side of the figure? 

    • A.

      A ping 10.1.1.1 command on PC1 did not succeed.

    • B.

      A ping 10.1.13.3 command from PC1 succeeded, but a ping 172.16.2.4 did not.

    • C.

      A ping 10.1.1.1 command from PC1 succeeded, but a ping 10.1.13.1 did not.

    • D.

      A ping 10.1.1.10 command from PC1 succeeded.

    Correct Answer
    A. A ping 10.1.1.1 command on PC1 did not succeed.
    Explanation
    If the ping command to 10.1.1.1 did not succeed, it indicates a problem at Layer 3 (network layer) or above. This is because the ping command uses ICMP (Internet Control Message Protocol) which operates at the network layer. Therefore, the issue is unlikely to be at Layer 1 or 2 (physical or data link layer) as stated in the question.

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  • 14. 

    The PC2 user issues the tracert 10.1.1.10 command. Which of the following IP addresses could be shown in the command output?

    • A.

      10.1.1.10

    • B.

      10.1.1.1

    • C.

      10.1.13.1

    • D.

      10.1.13.3

    • E.

      172.16.2.4

    Correct Answer(s)
    A. 10.1.1.10
    C. 10.1.13.1
    E. 172.16.2.4
    Explanation
    The tracert command is used to trace the route that packets take from the source to the destination IP address. The command output will display the IP addresses of the routers or devices that the packets pass through. In this case, the IP addresses that could be shown in the command output are 10.1.1.10, 10.1.13.1, and 172.16.2.4. These are the IP addresses that the packets may encounter along the route to the destination IP address.

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  • 15. 

    All the devices in the figure just booted, and none of the devices has yet sent any data frames. Both PCs use statically configured IP addresses. Then PC1 successfully pings PC2. Which of the following ARP table entries would you expect to see?

    • A.

      An entry on PC1’s ARP cache for IP address 172.16.2.7

    • B.

      An entry on PC1’s ARP cache for IP address 10.1.1.1

    • C.

      An entry on R1’s ARP cache for IP address 10.1.1.10

    • D.

      An entry on R1’s ARP cache for IP address 172.16.2.7

    Correct Answer(s)
    B. An entry on PC1’s ARP cache for IP address 10.1.1.1
    C. An entry on R1’s ARP cache for IP address 10.1.1.10
    Explanation
    When PC1 successfully pings PC2, it needs to know the MAC address of PC2 in order to send the ICMP packets. PC1 will send an ARP request asking for the MAC address of PC2's IP address (172.16.2.7). PC2 will respond with its MAC address, and PC1 will update its ARP cache with this information. Therefore, we would expect to see an entry on PC1's ARP cache for IP address 172.16.2.7. Similarly, when PC1 wants to send the ICMP packets to PC2, it needs to know the MAC address of the default gateway (R1) which has the IP address 10.1.1.10. PC1 will send an ARP request for the MAC address of R1, and R1 will respond with its MAC address. Therefore, we would expect to see an entry on R1's ARP cache for IP address 10.1.1.10.

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  • 16. 

    PC1 is successfully pinging PC2 in the figure. Which of the following is true about the packets?

    • A.

      The frame going left-to-right, as it crosses the left-side LAN, has a destination MAC address of R1’s MAC address.

    • B.

      The frame going left-to-right, as it crosses the right-side LAN, has a destination MAC address of R2’s MAC address.

    • C.

      The frame going left-to-right, as it crosses the serial link, has a destination IP address of PC2’s IP address.

    • D.

      The frame going right-to-left, as it crosses the left-side LAN, has a source MAC address of PC2’s MAC address.

    • E.

      The frame going right-to-left, as it crosses the right-side LAN, has a source MAC address of PC2’s MAC address.

    Correct Answer(s)
    A. The frame going left-to-right, as it crosses the left-side LAN, has a destination MAC address of R1’s MAC address.
    C. The frame going left-to-right, as it crosses the serial link, has a destination IP address of PC2’s IP address.
    E. The frame going right-to-left, as it crosses the right-side LAN, has a source MAC address of PC2’s MAC address.
    Explanation
    The first statement is true because when the frame is crossing the left-side LAN, it needs to reach the router R1, so the destination MAC address will be R1's MAC address. The second statement is also true because when the frame is crossing the serial link, it needs to reach PC2, so the destination IP address will be PC2's IP address. The fifth statement is true because when the frame is going right-to-left and crossing the right-side LAN, the source MAC address will be PC2's MAC address.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 24, 2009
    Quiz Created by
    Ajeff
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