Test Your Knowledge Is On CCNA – OSPF Questions 2

9 Questions | Total Attempts: 511

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Test Your Knowledge Is On CCNA  OSPF Questions 2

Welcome back to another quiz which aims to boost your studies for your Cisco Certified Network Associate, where we’ll be taking another look at the routing protocol known as Open Shortest Path First (OSPF). What can you tell us about this protocol and how it works? Let’s take a look. .


Questions and Answers
  • 1. 
    Why R1 can’t establish an OSPF neighbor relationship with R3 according to the following graphic? (Choose two)
    • A. 

      Configure EIGRP on these routers with a lower administrative distance

    • B. 

      All routers should be configured for backbone Area 1

    • C. 

      R1 and R3 have been configured in different areas

    • D. 

      The hello and dead interval timers are not configured the same values on R1 and R3

  • 2. 
    Which parameter or parameters are used to calculate OSPF cost in Cisco routers?
    • A. 

      Bandwidth, Delay and MTU

    • B. 

      Bandwidth

    • C. 

      Bandwidth and MTU

    • D. 

      Bandwidth, MTU, Reliability, Delay and Load

  • 3. 
    A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?
    • A. 

      The OSPF area is not configured properly.

    • B. 

      The priority on R1 should be set higher.

    • C. 

      The cost on R1 should be set higher.

    • D. 

      The hello and dead timers are not configured properly.

    • E. 

      A backup designated router needs to be added to the network.

    • F. 

      The OSPF process ID numbers must match.

  • 4. 
    What information does a router running a link-state protocol use to build and maintain its topological database? (Choose two)
    • A. 

      Hello packets

    • B. 

      SAP messages sent by other routers

    • C. 

      LSAs from other routers

    • D. 

      Beacons received on point-to-point links

    • E. 

      Routing tables received from other link-state routers

    • F. 

      TTL packets from designated routers

  • 5. 
    Which command is used to display the collection of OSPF link states?
    • A. 

      Show ip ospf link-state

    • B. 

      Show ip ospf lsa database

    • C. 

      Show ip ospf neighbors

    • D. 

      Show ip ospf database

  • 6. 
    When running OSPF, what would cause router A not to form an adjacency with router B?
    • A. 

      The loopback addresses are on different subnets.

    • B. 

      The values of the dead timers on the routers are different.

    • C. 

      Route summarization is enabled on both routers.

    • D. 

      The process identifier on router A is different than the process identifier on router

  • 7. 
    • A. 

      It is used for type 1 router LSA

    • B. 

      Highest IP address of the loopback is used

    • C. 

      Router-id needs to be matched on ospf neighbors

    • D. 

      Router-id is 16 bit

  • 8. 
    • A. 

      It identifies the source of Type 1 LSA

    • B. 

      It should be the same on all routers in an OSPF routing instance

    • C. 

      By default, the lowest IP address on the router becomes the OSPF router ID

    • D. 

      The router automatically chooses the IP address of a loopback as the OSPF Router ID

    • E. 

      It is created using the MAC Address of the loopback interface

  • 9. 
    What are two benefits of using a single OSPF area network design? (Choose two) 
    • A. 

      It is less CPU intensive for routers in the single area.

    • B. 

      It reduces the types of LSAs that are generated.

    • C. 

      It removes the need for virtual links.

    • D. 

      It increases LSA response times.

    • E. 

      It reduces the number of required OSPF neighbor adjacencies.