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Router Quizzes & Trivia

To help in the use of internet by computers and other gadgets, routers are installed to control and enable the use. How well do you know of the installation and working of internet routers? Take the quiz and find out.


Questions and Answers
  • 1. 

    Two routers are configured for an HRSP group. One router uses the default HSRP priority. What priority should be assigned to the other router to make it more likely to be the active router?

    • A.

      1

    • B.

      100

    • C.

      200

    • D.

      500

    Correct Answer
    C. 200
    Explanation
    Assigning a priority of 200 to the other router would make it more likely to be the active router in the HRSP group. In HSRP, the router with the highest priority becomes the active router. By setting the priority of the second router to 200, it would have a higher priority than the default priority (which is usually 100), increasing its chances of becoming the active router.

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  • 2. 

    HSRP makes use of which protocol to deliver messages to the HSRP group.

    • A.

      UDP

    • B.

      ICMP

    • C.

      TCP

    • D.

      SMTP

    Correct Answer
    A. UDP
    Explanation
    HSRP (Hot Standby Router Protocol) uses UDP (User Datagram Protocol) to deliver messages to the HSRP group. UDP is a connectionless protocol that provides a lightweight and fast method of communication. It is commonly used for applications that require low latency and do not require the reliability and error-checking mechanisms provided by TCP. HSRP uses UDP for the exchange of hello messages and other control messages between routers in the HSRP group, allowing them to elect a standby router and provide redundancy in case of a failure.

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  • 3. 

    Which of the following do multilayer switches share when running HSRP?

    • A.

      ARP cache

    • B.

      Routing tables

    • C.

      IP address

    • D.

      CAM table

    Correct Answer
    C. IP address
    Explanation
    Multilayer switches share the IP address when running HSRP. HSRP (Hot Standby Router Protocol) is a redundancy protocol used to provide high availability in a network. When multiple switches are configured to run HSRP, they share a virtual IP address. This IP address is used as the default gateway for hosts in the network. If one switch fails, another switch takes over the virtual IP address to ensure uninterrupted communication. Therefore, the IP address is shared among the switches running HSRP to provide redundancy and fault tolerance.

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  • 4. 

    Even with the use of equipment from multiple vendors, which protocol ensures immediate and transparent recovery from first-hop failures?

    • A.

      VRRP

    • B.

      GLBP

    • C.

      IRDP

    • D.

      HSRP

    Correct Answer
    A. VRRP
    Explanation
    VRRP (Virtual Router Redundancy Protocol) ensures immediate and transparent recovery from first-hop failures even when using equipment from multiple vendors. VRRP allows multiple routers to work together as a single virtual router, with one router acting as the master and the others as backups. In the event of a first-hop failure, the backup router immediately takes over as the master, ensuring uninterrupted connectivity. VRRP is a standardized protocol that is supported by various vendors, making it a reliable choice for network redundancy.

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  • 5. 

    What HSRP group uses the MAC address 0000.0c07.ac11? (remember this is a hex number)

    • A.

      Group 0

    • B.

      Group 7

    • C.

      Group 11

    • D.

      Group 17

    Correct Answer
    D. Group 17
    Explanation
    The HSRP group that uses the MAC address 0000.0c07.ac11 is group 17.

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  • 6. 

    Refer to the graphic, The network is using GLBP for redundancy and load balancing. Host B has already made an ARP request for the default gateway and has been assigned the virtual MAC aaa.aaa.aaa1. Host A sends an ARP request for the MAC address of its default gateway. Which MAC address will Host A receive in the ARP reply message?

    • A.

      aaa.aaa.aaa1

    • B.

      aaa.aaa.aaa9

    • C.

      aaa.aaa.aaa7

    • D.

      Aaa.aaa.aaa2

    Correct Answer
    D. Aaa.aaa.aaa2
    Explanation
    Host A will receive the MAC address aaa.aaa.aaa2 in the ARP reply message. This is because GLBP uses a round-robin algorithm to assign virtual MAC addresses to hosts. Host B has already been assigned the virtual MAC address aaa.aaa.aaa1, so the next available virtual MAC address is aaa.aaa.aaa2. When Host A sends an ARP request for the MAC address of its default gateway, it will receive the virtual MAC address aaa.aaa.aaa2 in the ARP reply message.

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  • 7. 

    Any router in the HRSP group that is not the active router could be what?

    • A.

      Complementary router

    • B.

      Standby router

    • C.

      Passive router

    • D.

      engaged router

    Correct Answer
    B. Standby router
    Explanation
    A standby router refers to any router in the HRSP group that is not currently serving as the active router. The standby router is ready to take over the role of the active router in case it fails or becomes unavailable. It essentially acts as a backup, ensuring continuous network connectivity and minimizing downtime.

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  • 8. 

    What state would an HSRP router be in if it was answering for the virtual IP address?

    • A.

      Passive

    • B.

      Initial

    • C.

      Standby

    • D.

      Active

    Correct Answer
    D. Active
    Explanation
    An HSRP router would be in the "Active" state if it is answering for the virtual IP address. In this state, the router is actively participating in the HSRP group and is responsible for forwarding traffic to the virtual IP address. The Active router is the one that is currently serving as the default gateway for the hosts in the network.

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  • 9. 

    Which of the following is not an HSRP state.

    • A.

      Broadcast

    • B.

      Initial

    • C.

      Active

    • D.

      Speak

    Correct Answer
    A. Broadcast
    Explanation
    The HSRP (Hot Standby Router Protocol) is a network protocol used for providing redundancy and high availability in a network. In HSRP, routers are grouped into a standby group, and one router is elected as the active router while the others are in standby mode. The active router handles the network traffic, while the standby routers are ready to take over in case the active router fails. The "Broadcast" state is not an HSRP state. The HSRP states are "Initial," "Active," and "Speak," which represent different stages in the protocol's operation.

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  • 10. 

    What VRRP group uses the virtual MAC address 0000.5e00.01ff?

    • A.

      Group 94

    • B.

      Group 0

    • C.

      Group 255

    • D.

      Group 1

    Correct Answer
    C. Group 255
    Explanation
    The virtual MAC address 0000.5e00.01ff is used by VRRP group 255. VRRP (Virtual Router Redundancy Protocol) is a protocol that allows multiple routers to work together as a single virtual router, providing redundancy and failover. Each VRRP group is identified by a virtual MAC address, and in this case, group 255 is associated with the given MAC address.

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  • 11. 

      What is the default advertisement of the VRRP master router?

    • A.

      1 second

    • B.

      2 seconds

    • C.

      3 seconds

    • D.

      10 seconds

    Correct Answer
    A. 1 second
    Explanation
    The default advertisement of the VRRP master router is 1 second. This means that the master router sends out advertisements every 1 second to inform the other routers in the VRRP group of its status as the master. This allows the other routers to know that the master router is still active and functioning properly.

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  • 12. 

    Refer to the graphic, Routers A, B, C, and D are members of a VRRP virtual router group. Given the design in the exhibit, which router will become a master virtual router for the group?       router B   router D   router A   router C

    • A.

      Router B

    • B.

      Router D

    • C.

      Router A

    • D.

      Router C

    Correct Answer
    A. Router B
    Explanation
    Based on the given information, router B will become the master virtual router for the group. This is because VRRP (Virtual Router Redundancy Protocol) uses a priority system to determine which router becomes the master. The router with the highest priority value becomes the master. In this case, router B has the highest priority value among routers A, B, C, and D. Therefore, router B will become the master virtual router for the group.

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  • 13. 

    How many member routers can be forwarding in a GLBP group?

    • A.

      1

    • B.

      4

    • C.

      3

    • D.

      2

    Correct Answer
    B. 4
    Explanation
    GLBP (Gateway Load Balancing Protocol) allows up to four routers to actively forward traffic in a GLBP group. This protocol is used to balance the traffic load across multiple routers, providing redundancy and improving network performance. By allowing four member routers to forward traffic, GLBP ensures that the network can handle higher traffic loads and provides fault tolerance in case any of the routers fail.

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  • 14. 

    How long does a standby router take to detect the loss of the active router in HSRP with default timer values?

    • A.

      15 seconds

    • B.

      10 seconds

    • C.

      3 seconds

    • D.

      9 seconds

    Correct Answer
    B. 10 seconds
    Explanation
    In HSRP with default timer values, a standby router takes 10 seconds to detect the loss of the active router. HSRP (Hot Standby Router Protocol) is a Cisco proprietary protocol used for providing redundancy in a network by allowing multiple routers to work together as a virtual router. The standby router constantly monitors the active router by sending hello messages every 3 seconds. If the standby router doesn't receive a hello message from the active router for 10 seconds, it assumes that the active router is down and takes over as the new active router.

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  • 15. 

    Which statement is true about the following graphic

    • A.

      R2 will only become the active router if R1's Fa0/0 interface goes down and not any other interface.

    • B.

      R1 will become the active router if R1's Fa0/0 interface goes down.

    • C.

      R1 will remain the active router if R1's S0/1 interface goes down.

    • D.

      R2 will become the active router if R1's Fa0/0 interface goes down.

    Correct Answer
    D. R2 will become the active router if R1's Fa0/0 interface goes down.
    Explanation
    If R1's Fa0/0 interface goes down, R1 will no longer be able to send hello messages to R2, causing R2 to declare itself as the active router. This is because R2 will not receive any hello messages from R1, which is a requirement for R1 to remain as the active router. Therefore, R2 will become the active router in this scenario.

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  • 16. 

    Which one of the following GLBP functions answers ARP requests?

    • A.

      AVF

    • B.

      VARP

    • C.

      MVR

    • D.

      AVG

    Correct Answer
    D. AVG
    Explanation
    AVG stands for Active Virtual Gateway. In GLBP (Gateway Load Balancing Protocol), AVG is responsible for answering ARP (Address Resolution Protocol) requests. When a host sends an ARP request to resolve a MAC address for a specific IP address, the AVG in GLBP responds with the virtual MAC address of the active virtual gateway. This allows for load balancing and redundancy in a network by distributing traffic across multiple gateways.

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  • 17. 

    A multilayer switch is configured as follows: Switch(config)#interface fastethernet 1/1 Switch(config-if)#no switchport Switch(config-if)#ip address 192.168.199.3 255.255.255.0 Switch(config-if)#standby 1 ip 192.168.199.2 Which IP address should a client PC use as its default gateway?

    • A.

      192.168.199.1

    • B.

      192.168.199.2

    • C.

      192.168.199.3

    • D.

      Any of these

    Correct Answer
    B. 192.168.199.2
    Explanation
    The client PC should use 192.168.199.2 as its default gateway because the standby 1 ip command configures the switch interface with this IP address.

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  • 18. 

      Refer to the graphic. The STP and HRSP timers are set to their default values. To align the two failover protocols, to what value should the STP hello timer be set?

    • A.

      3 seconds

    • B.

      Default

    • C.

      15 seconds

    • D.

      10 second

    • E.

      50 seconds

    Correct Answer
    A. 3 seconds
    Explanation
    The STP hello timer should be set to 3 seconds in order to align with the default values of the HRSP timers.

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  • 19. 

      What does the active router possess that none of the other HSRP member can until the active router fails or is shut down?

    • A.

      Assigned ports

    • B.

      IP assigned to the router physical interfac

    • C.

      Virtual router MAC address

    • D.

      Physical MAC address

    Correct Answer
    C. Virtual router MAC address
    Explanation
    The active router possesses the virtual router MAC address, which is unique to the HSRP group. This MAC address is used by other devices on the network to communicate with the active router. The other HSRP members do not have this virtual MAC address until the active router fails or is shut down, at which point a new active router is elected and assigned the virtual MAC address.

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  • 20. 

    Which one of the following protocols is the best choice for load balancing redundant gateways?

    • A.

      GLBP

    • B.

      VRRP

    • C.

      HSRP

    • D.

      GVRP

    Correct Answer
    A. GLBP
    Explanation
    GLBP (Gateway Load Balancing Protocol) is the best choice for load balancing redundant gateways. It allows multiple routers to work together in a group, providing load sharing and redundancy. GLBP uses a virtual IP address that is shared among the routers in the group, and it also distributes the traffic load across the routers using a round-robin algorithm. In case one router fails, GLBP automatically redirects the traffic to the remaining active routers, ensuring high availability and efficient load balancing. VRRP (Virtual Router Redundancy Protocol) and HSRP (Hot Standby Router Protocol) are also used for gateway redundancy but do not provide load balancing capabilities like GLBP. GVRP (GARP VLAN Registration Protocol) is unrelated to load balancing redundant gateways.

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