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Chapter 10 Review

Quiz by Eric Jackson

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34 questions
Show answers
  • Q1
    A network administrator has just changed the router ID on a router that is working in an OSPFv2 environment. What should the administrator do to reset the adjacencies and use the new router ID?
    Issue the clear ip ospf process privileged mode command.
    Configure the network statements.
    Change the OSPFv2 process ID.
    Change the interface priority.
    60s
  • Q2
    What is a conclusion that can be drawn from the displayed output?
    Question Image
    The router ID on the DR router is 3.3.3.3
    The DR can be reached through the GigabitEthernet 0/0 interface.
    The BDR has three neighbors.
    This interface is using the default priority.
    120s
  • Q3
    What is a conclusion that can be drawn from the displayed output?
    Question Image
    The BDR has three neighbors.
    The router ID on the DR router is 3.3.3.3
    This interface is using the default priority.
    The router ID values were not the criteria used to select the DR and the BDR.
    120s
  • Q4
    What is a conclusion that can be drawn from the displayed output?
    Question Image
    There have been 9 seconds since the last hello packet sent.
    The BDR has three neighbors.
    The router ID on the DR router is 3.3.3.3
    This interface is using the default priority.
    120s
  • Q5
    Which conclusion can be drawn from this OSPF multiaccess network?
    Question Image
    With an election of the DR, the number of adjacencies is reduced from 6 to 3.
    When a DR is elected all other non-DR routers become DROTHER.
    All DROTHER routers will send LSAs to the DR and BDR to multicast 224.0.0.5.
    If the DR stops producing Hello packets, a BDR will be elected, and then it promotes itself to assume the role of DR.​
    120s
  • Q6
    Which OSPF feature allows a remote OSPF area to participate in OSPF routing when it cannot connect directly to OSPF Area 0?
    NBMA
    virtual link
    point-to-point connectivity
    DR/BDR
    45s
  • Q7
    What is a result of the DR and BDR election process for the given topology?
    Question Image
    R4 is BDR for segment B.
    R3 is BDR for segment A.
    R1 is DR for segment A.
    R3 is DR for segment A.
    120s
  • Q8
    Which is a result of the DR and BDR election process for the given topology?
    Question Image
    R3 is DR for segment A.
    R2 is BDR for segment A.
    R4 is BDR for segment B.
    R3 is BDR for segment A.
    120s
  • Q9
    Which is a result of the DR and BDR election process for the given topology?
    Question Image
    R4 is BDR for segment B.
    R3 is BDR for segment A.
    R3 is DR for segment A.
    R5 is BDR for segment B.
    120s
  • Q10
    When checking a routing table, a network technician notices the following entry: O*E2 0.0.0.0/0 [110/1] via 192.168.16.3, 00:20:22, Serial0/0/0 What information can be gathered from this output?
    The edge of the OSPF area 0 is the interface that is addressed 192.168.16.3.
    The metric for this route is 110.
    The route is located two hops away.
    This route is a propagated default route.
    60s
  • Q11
    Which is a conclusion that can be drawn based on the output of the show ipv6 route command?
    Question Image
    R2 receives default route information from another router.
    Route 2001:DB8:CAFE:4::/64 is advertised by a router three hops away.
    Routes 2001:DB8:CAFE:1::/64 and 2001:DB8:CAFE:3::/64 are advertised from the same router.
    Route 2001:DB8:CAFE:4::/64 is an external route advertised by an ASBR.
    120s
  • Q12
    Which is a conclusion that can be drawn based on the output of the show ipv6 route command?
    Question Image
    Route 2001:DB8:CAFE:4::/64 is advertised by a router three hops away.
    Routes 2001:DB8:CAFE:1::/64 and 2001:DB8:CAFE:3::/64 are advertised from the same router.
    Route 2001:DB8:CAFE:B001::/64 is a route advertised by an ABR.
    Route 2001:DB8:CAFE:4::/64 is an external route advertised by an ASBR.
    120s
  • Q13
    Which command will a network engineer issue to verify the configured hello and dead timer intervals on a point-to-point WAN link between two routers that are running OSPFv2?
    show ip ospf neighbor
    show ip ospf interface fastethernet 0/1
    show ip ospf interface serial 0/0/0
    show ipv6 ospf interface serial 0/0/0
    30s
  • Q14
    A network engineer suspects that OSPFv3 routers are not forming neighbor adjacencies because there are interface timer mismatches. Which is a command that can be issued on the interface of each OSFPv3 router to resolve all timer mismatches?
    no ipv6 ospf hello-interval
    ip ospf hello-interval 10
    ip ospf dead-interval 40
    no ipv6 ospf cost 10
    60s
  • Q15
    A network engineer suspects that OSPFv3 routers are not forming neighbor adjacencies because there are interface timer mismatches. Which is a command that can be issued on the interface of each OSFPv3 router to resolve all timer mismatches?
    ip ospf dead-interval 40
    no ipv6 router ospf 10
    no ipv6 ospf cost 10
    no ipv6 ospf dead-interval
    60s

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