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单选题What is the purpose of the OSPF link-state update packet?（）A describes a change to the OSPF hello timerB carries one or more link-state advertisementsC establishes and maintains neighbor relationshipsD describes the contents of the entire link-state da

题目
单选题
What is the purpose of the OSPF link-state update packet?（）
A

describes a change to the OSPF hello timer

B

carries one or more link-state advertisements

C

establishes and maintains neighbor relationships

D

describes the contents of the entire link-state database

相似考题

1.By default, how often does an ERX Edge Router send an OSPF link－state advertisement in a stable network?()A.AB.BC.CD.D

2.Which CLI command is used to see the current OSPF link－state database?()A. show ospf databaseB. show ospf neighborC. show protocols ospfD. show ospf link-state

3.What is the purpose of the OSPF link－state update packet?()A. describes a change to the OSPF hello timerB. carries one or more link-state advertisementsC. establishes and maintains neighbor relationshipsD. describes the contents of the entire link-state database

4.What is the purpose of the OSPF hello packet?()A.AB.BC.CD.D

更多“单选题What is the purpose of the OSPF link-state update packet?（）A describes a change to the OSPF hello timerB carries one or more link-state advertisementsC establishes and maintains neighbor relationshipsD describes the contents of the entire link-state da”相关问题

  • 第1题：

    Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using default settings for all timers. An engineer ad ds the ip ospf hello - interval 6 command to R1‘s Fa0/0 configuration.Which of the following is true regarding the results from this change?（）

    A. The show ip ospf neighbor command on R1 lists the revised Hello timer

    B. The show ip ospf interfac e brief command on R1 lists the revised Hello timer

    C. The R1 - R2 neighborship fails due to Hello timer mismatcH

    D. The show ip ospf interface command on R1 lists the revised Hello timer


    参考答案：C, D

  • 第2题：

    What is the purpose of the OSPF router ID in a OR／BOR election?()

    A. It is used with the OSPF priority values to determine which OSPF router will become the DR or BOR in a point-to-point network

    B. It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF router

    C. It is used with the OSPF priority values to determine which router will become the DR or BOR in a multi access network

    D. It is used to determine which interfaces will send Hello packets to neighboring OSPF routers


    参考答案：C

  • 第3题：

    What information does a router running a link－state protocol use to build and maintain its topological database?()

    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


    参考答案：A, C

  • 第4题：

    OSPF is a link-state routing protocol。It is designed to be run internal to a single （71）system。Each OSPF router maintains an identical （）describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path （）。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing （） traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol （）。

    A.autonomous
    B.network
    C.computer
    D.server

    答案：A
    解析：

  • 第5题：

    Which three are benefits of IS - IS over OSPF?（）

    • A、supports route tags
    • B、supports more routers in an area
    • C、does not require Hello packets to establish neighbor relationships
    • D、produces fewer link state advertisements for a given network
    • E、supports network layer protocols other than IP
    • F、requires fewer neighbor relationships in a broadcast multiaccess network

    正确答案:B,D,E

  • 第6题：

    Which of the following data structures exist on a router for the OSPF routing protocol？（）

    • A、OSPF topology table
    • B、OSPF interface table
    • C、OSPF routing information base
    • D、OSPF link-state database
    • E、OSPF adjacency table
    • F、OSPF neighbor table

    正确答案:B,C,D,F

  • 第7题：

    如果OSPF链路故障，哪个包广播网络的变化（）

    • A、Link-state advertisement
    • B、Database Description
    • C、Link-state request
    • D、Link-state update

    正确答案:D

  • 第8题：

    What information does a router running a link-state protocol use to build and maintain its topological database？ （）

    • 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

    正确答案:A,C

  • 第9题：

    What is the purpose of the OSPF link-state update packet?（）

    • A、describes a change to the OSPF hello timer
    • B、carries one or more link-state advertisements
    • C、establishes and maintains neighbor relationships
    • D、describes the contents of the entire link-state database

    正确答案:B

  • 第10题：

    单选题
    Which CLI command is used to see the current OSPF link-state database?（）
    A

    show ospf database

    B

    show ospf neighbor

    C

    show protocols ospf

    D

    show ospf link-state


    正确答案： B
    解析： 暂无解析

  • 第11题：

    多选题
    The OSPF hello protocol performs which of the following tasks?（）
    A

    It provides dynamic neighbor discovery

    B

    It detects unreachable neighbors in 90 second intervals

    C

    It maintains neighbor relationships

    D

    It negotiates correctness parameters between neighboring interfaces

    E

    It uses timers to elect the router witch the fastest links as the designated router

    F

    It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF


    正确答案： C,A
    解析： 暂无解析

  • 第12题：

    单选题
    What is the purpose of the OSPF link-state update packet?（）
    A

    describes a change to the OSPF hello timer

    B

    carries one or more link-state advertisements

    C

    establishes and maintains neighbor relationships

    D

    describes the contents of the entire link-state database


    正确答案： D
    解析： 暂无解析

  • 第13题：

    Which three are benefits of IS － IS over OSPF?()

    A. supports route tags

    B. supports more routers in an area

    C. does not require Hello packets to establish neighbor relationships

    D. produces fewer link state advertisements for a given network

    E. supports network layer protocols other than IP

    F. requires fewer neighbor relationships in a broadcast multiaccess network


    参考答案：B, D, E

  • 第14题：

    The OSPF hello protocol performs which of the following tasks?()

    A. It provides dynamic neighbor discovery

    B. It detects unreachable neighbors in 90 second intervals

    C. It maintains neighbor relationships

    D. It negotiates correctness parameters between neighboring interfaces

    E. It uses timers to elect the router witch the fastest links as the designated router

    F. It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF


    参考答案：A, C

  • 第15题：

    OSPF is a link-state routing protocol。It is designed to be run internal to a single （）system。Each OSPF router maintains an identical （）describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path （）。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing （74） traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol （）。

    A.protocol
    B.network
    C.broadcast
    D.multipath

    答案：D
    解析：

  • 第16题：

    OSPF路由协议是一种典型的链路状态（Link-state）路由协议，一般用于同一个（）内。


    正确答案:路由域

  • 第17题：

    The OSPF hello protocol performs which of the following tasks?（）

    • A、It provides dynamic neighbor discovery
    • B、It detects unreachable neighbors in 90 second intervals
    • C、It maintains neighbor relationships
    • D、It negotiates correctness parameters between neighboring interfaces
    • E、It uses timers to elect the router witch the fastest links as the designated router
    • F、It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF

    正确答案:A,C

  • 第18题：

    What is the purpose of the OSPF hello packet？（）

    • A、 advertises reachable networks
    • B、 acknowledges the receipt of update packets
    • C、 establishes and maintains neighbor relationships
    • D、 describes the contents of the link-state database

    正确答案:C

  • 第19题：

    What is the purpose of the OSPF router ID in a OR/BOR election?（）

    • A、It is used with the OSPF priority values to determine which OSPF router will become the DR or BOR in a point-to-point network
    • B、It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF router
    • C、It is used with the OSPF priority values to determine which router will become the DR or BOR in a multi access network
    • D、It is used to determine which interfaces will send Hello packets to neighboring OSPF routers

    正确答案:C

  • 第20题：

    Which two statements are correct regarding IS-IS？（）

    • A、Routers maintain a single link-state database per area.
    • B、Routers maintain a separate Level 1 link-state database.
    • C、Routers maintain a separate Level 2 link-state database.
    • D、Routers maintain a single Level 1 link-state database per area.

    正确答案:B,C

  • 第21题：

    Which CLI command is used to see the current OSPF link-state database?（）

    • A、show ospf database
    • B、show ospf neighbor
    • C、show protocols ospf
    • D、show ospf link-state

    正确答案:A

  • 第22题：

    多选题
    Which of the following data structures exist on a router for the OSPF routing protocol？（）
    A

    OSPF topology table

    B

    OSPF interface table

    C

    OSPF routing information base

    D

    OSPF link-state database

    E

    OSPF adjacency table

    F

    OSPF neighbor table


    正确答案： B,D
    解析： 暂无解析

  • 第23题：

    单选题
    What is the purpose of the OSPF hello packet？（）
    A

     advertises reachable networks

    B

     acknowledges the receipt of update packets

    C

     establishes and maintains neighbor relationships

    D

     describes the contents of the link-state database


    正确答案： D
    解析： 暂无解析

  • 第24题：

    单选题
    What is the purpose of the OSPF router ID in a OR/BOR election?（）
    A

    It is used with the OSPF priority values to determine which OSPF router will become the DR or BOR in a point-to-point network

    B

    It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF router

    C

    It is used with the OSPF priority values to determine which router will become the DR or BOR in a multi access network

    D

    It is used to determine which interfaces will send Hello packets to neighboring OSPF routers


    正确答案： C
    解析： 暂无解析

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