如果OSPF链路故障，哪个包广播网络的变化（）A、Link-state advertisementB、Database DescriptionC、Link-state requestD、Link-state update

题目

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
相似考题

1.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 across multiple areas.

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

更多“如果OSPF链路故障，哪个包广播网络的变化（）A、Link-state advertisementB、Database DescriptionC、Link-state requestD、Link-state update”相关问题

  • 第1题：

    Why would you make a non－backbone area a stub or not－so－stubby area?()

    A. to aggregate routes learned from the ABR

    B. to lower the cost of routes advertised by the ABR

    C. to connect a non-contiguous area to the backbone

    D. to decrease the size of the link-state database in that area


    参考答案：D

  • 第2题：

    OSPF包括哪些报文类型()

    A.Hello

    B.Database description

    C.Link state request

    D.Link state DD

    E.Link state advertisement


    参考答案：A, B, C

  • 第3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4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5题：

    Which three fields are optional in an OSPFv3 external LSA？（）

    • A、Forwarding Address
    • B、External Route
    • C、Reference Link-State ID
    • D、Option
    • E、Prefix Options

    正确答案:A,B,C

  • 第6题：

    Why would you make a non-backbone area a stub or not-so-stubby area？（）

    • A、 to aggregate routes learned from the ABR
    • B、 to lower the cost of routes advertised by the ABR
    • C、 to connect a non-contiguous area to the backbone
    • D、 to decrease the size of the link-state database in that area

    正确答案:D

  • 第7题：

    BGP是哪种类型的路由协议：（）。

    • A、通路向量（pathvector）路由协议
    • B、距离向量（distancevector）路由协议
    • C、链路状态（link-state）路由协议
    • D、以上都不是

    正确答案:B

  • 第8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9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10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11题：

    单选题
    Why would you make a non-backbone area a stub or not-so-stubby area？（）
    A

     to aggregate routes learned from the ABR

    B

     to lower the cost of routes advertised by the ABR

    C

     to connect a non-contiguous area to the backbone

    D

     to decrease the size of the link-state database in that area


    正确答案： D
    解析： 暂无解析

  • 第12题：

    名词解释题
    link－state连接状态

    正确答案： 路由器计算到达每个目的地最佳路径的算法。路由器接收有关网络连接状态的倍息，并由它来计算最短路径。
    解析： 暂无解析

  • 第13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14题：

    哪个IS－IS邻居状态显示双向通信已经发生但link－state数据库仍在收敛?()。

    A.New

    B.One-Way

    C.Initializing

    D.Up


    参考答案：C

  • 第15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16题：

    link－state连接状态


    正确答案: 路由器计算到达每个目的地最佳路径的算法。路由器接收有关网络连接状态的倍息，并由它来计算最短路径。

  • 第17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 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20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21题：

    多选题
    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： C,E
    解析： 暂无解析

  • 第22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23题：

    多选题
    Which three fields are optional in an OSPFv3 external LSA？（）
    A

    Forwarding Address

    B

    External Route

    C

    Reference Link-State ID

    D

    Option

    E

    Prefix Options


    正确答案： D,A
    解析： 暂无解析

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