单选题What is the purpose of IS-IS level boundaries?（）A Restrain the formation of adjacencies.B Control the flooding scope of link-state PDUs.C Partition the L2 backbone into multiple domains.D Aggregate L1 domains into a contiguous backbone.

题目
单选题
What is the purpose of IS-IS level boundaries?（）
A

Restrain the formation of adjacencies.

B

Control the flooding scope of link-state PDUs.

C

Partition the L2 backbone into multiple domains.

D

Aggregate L1 domains into a contiguous backbone.

相似考题

1.What are two functions that the parameter max－session performs? ()(Choose two.)A. Defines the session limit for the domain.B. Defines the session limit for the tunnel instance.C. Used to control load balancing between multiple domains.D. Used to control load balancing between multiple tunnels for a domain.

2.By default, an L1／L2 IS－IS router advertises what remote area routes into a Level 1 area?()A. only summarized routesB. all routes in the networkC. all routes in the backboneD. No routes are advertised.

3.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.

4.What is the purpose of IS－IS level boundaries?()A. Restrain the formation of adjacencies.B. Control the flooding scope of link-state PDUs.C. Partition the L2 backbone into multiple domains.D. Aggregate L1 domains into a contiguous backbone.

更多“单选题What is the purpose of IS-IS level boundaries?（）A Restrain the formation of adjacencies.B Control the flooding scope of link-state PDUs.C Partition the L2 backbone into multiple domains.D Aggregate L1 domains into a contiguous backbone.”相关问题

  • 第1题：

    What are two reasons for using a virtual link in OSPF?()

    A. Provides fast convergence times.

    B. Supports connections of multiple backbones.

    C. Eliminates the need for a Designated Router.

    D. Supports non direct connections to the backbone.


    参考答案：B, D

  • 第2题：

    HowdoroutersinanIS－ISLevel－1domainexittoreachotherLevel－1(L1)domains?()

    A.Level-1（L1）routersusedefaultroutesannouncedbyLevel-2（L2）routersinLevel-1（L1）domain

    B.Level-1routersusedefaultroutesinstalledbasedonATTbit（AttachBit）inannouncementsfromLevel-1-2（L1/L2）router

    C.Level-1routersusespecificroutes，forotherLevel-1domain，announcedbyLevel-1-2（L1/L2）byroute-leakingfeatureofCiscoIOS

    D.Level-1routersusespecificroutes，forotherLevel-1domain，announcedbyLevel-2（L2）byroute-leakingfeatureofCiscoIOS


    参考答案：B, C

  • 第3题：

    What is the purpose of the spanning-tree algorithm in a switched LAN?（）

    • A、To provide a monitoring mechanism for networks in switched environments.
    • B、To manage VLANs across multiple switches.
    • C、To prevent switching loops in networks with redundant switched paths.
    • D、To segment a network into multiple collision domains.
    • E、To prevent routing loops in networks.

    正确答案:C

  • 第4题：

    关于IS-IS协议的L2/L1路由渗透，下列说法正确的是？（）

    • A、VRP平台上，缺省为不渗透，可以通过命令在L1/L2路由器配置从Level-2向Level-1进行路由渗透
    • B、在L1/L2路由器上可以通过命令配置防止由于L2的路由渗透到L1 LSP又被发回到L2 LSP中而造成的路由环路
    • C、利用了default metric域中的高bit作为up/down bit来避免路由环路
    • D、路由渗透可以很好地解决L1选择次优路由出区域的问题

    正确答案:A,C,D

  • 第5题：

    What is the purpose of configuring Workload Manager on a server used for development and QA?（）

    • A、To experiment with shared processor pools
    • B、To isolate physical hardware between workloads
    • C、To control resource utilization on an application-by-application basis
    • D、To leverage Workload Partition Manager for performance trending and analysis

    正确答案:C

  • 第6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7题：

    What are two functions that the parameter max-session performs? （）(Choose two.)

    • A、Defines the session limit for the domain.
    • B、Defines the session limit for the tunnel instance.
    • C、Used to control load balancing between multiple domains.
    • D、Used to control load balancing between multiple tunnels for a domain.

    正确答案:B,D

  • 第8题：

    What are two reasons for using a virtual link in OSPF?（）

    • A、Provides fast convergence times.
    • B、Supports connections of multiple backbones.
    • C、Eliminates the need for a Designated Router.
    • D、Supports non direct connections to the backbone.

    正确答案:B,D

  • 第9题：

    单选题
    What bit should be set in the link state PDUs in an IS-IS level-1-2 router to indicate that they are a potentialexit point out of the area ？（）
    A

    ATT（Attached）bit

    B

    IS-Type bits

    C

    P（Partition）bit

    D

    Down bit

    E

    PN（Pseudonode）biy

    F

    ABR（Area Border Rorter）bit


    正确答案： F
    解析： 暂无解析

  • 第10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11题：

    单选题
    What is the purpose of the spanning-tree algorithm in a switched LAN?（）
    A

    To provide a monitoring mechanism for networks in switched environments.

    B

    To manage VLANs across multiple switches.

    C

    To prevent switching loops in networks with redundant switched paths.

    D

    To segment a network into multiple collision domains.

    E

    To prevent routing loops in networks.


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    By default, an L1/L2 IS-IS router advertises what remote area routes into a Level 1 area?（）
    A

    only summarized routes

    B

    all routes in the network

    C

    all routes in the backbone

    D

    No routes are advertised.


    正确答案： D
    解析： 暂无解析

  • 第13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14题：

    How do routers in an IS-IS Level-1 domain exit to reach other Level-1 （L1） domains？（）

    • A、Level-1（L1） routers use default routes announced by Level-2（L2） routers in Level-1（L1） domain
    • B、Level-1 routers use default routes installed based on ATT bit （Attach Bit） in announcements from Level-1-2（L1/L2） router
    • C、Level-1 routers use specific routes， for other Level-1 domain， announced by Level-1-2（L1/L2） by route-leaking feature of Cisco IOS
    • D、Level-1 routers use specific routes， for other Level-1 domain， announced by Level-2（L2） by route-leaking feature of Cisco IOS

    正确答案:B,C

  • 第15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16题：

    在isis协议中关于分层以下说法正确的是（）

    • A、IS-IS有两个级别，区分两个层次
    • B、一个路由器不能同时参与L1和L2
    • C、L1和L2运行相同的SPF算法
    • D、骨干区Backbone是连续的Level2路由器的集合

    正确答案:A,C,D

  • 第17题：

    By default, an L1/L2 IS-IS router advertises what remote area routes into a Level 1 area?（）

    • A、only summarized routes
    • B、all routes in the network
    • C、all routes in the backbone
    • D、No routes are advertised.

    正确答案:D

  • 第18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19题：

    What is the purpose of IS-IS level boundaries?（）

    • A、Restrain the formation of adjacencies.
    • B、Control the flooding scope of link-state PDUs.
    • C、Partition the L2 backbone into multiple domains.
    • D、Aggregate L1 domains into a contiguous backbone.

    正确答案:B

  • 第20题：

    多选题
    How do routers in an IS-IS Level-1 domain exit to reach other Level-1 （L1） domains？（）
    A

    Level-1（L1） routers use default routes announced by Level-2（L2） routers in Level-1（L1） domain

    B

    Level-1 routers use default routes installed based on ATT bit （Attach Bit） in announcements from Level-1-2（L1/L2） router

    C

    Level-1 routers use specific routes， for other Level-1 domain， announced by Level-1-2（L1/L2） by route-leaking feature of Cisco IOS

    D

    Level-1 routers use specific routes， for other Level-1 domain， announced by Level-2（L2） by route-leaking feature of Cisco IOS


    正确答案： D,A
    解析： 暂无解析

  • 第21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22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23题：

    单选题
    What is the purpose of configuring Workload Manager on a server used for development and QA?（）
    A

    To experiment with shared processor pools

    B

    To isolate physical hardware between workloads

    C

    To control resource utilization on an application-by-application basis

    D

    To leverage Workload Partition Manager for performance trending and analysis


    正确答案： C
    解析： 暂无解析

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