单选题In the IS-IS Designated Intermediate System （DIS） election process， which criteria is used for DIS selection？（）A highest router ID first， then highest priorityB highest MAC address first， then highest priorityC highest router ID first， then highest MAC

题目
单选题
In the IS-IS Designated Intermediate System （DIS） election process， which criteria is used for DIS selection？（）
A

highest router ID first， then highest priority

B

highest MAC address first， then highest priority

C

highest router ID first， then highest MAC address

D

highest priority first， then highest router ID

E

highest priority first， then highest MAC address

相似考题

1.在优先权相同的情况下选举Designated Intermediate System(DIS),则()。A.最大MAC地址表示最高优先权B.最大MAC地址表示最低优先权C.最小MAC地址表示最高优先权D.最小MAC地址表示最低优先权

2.How often are IS－IS Hello packets transmitted?()A. 3 seconds for DIS; 9 seconds for non-DISB. 9 seconds for DIS; 3 seconds for non-DISC. 10 seconds for DIS; 3 seconds for non-DISD. 10 seconds for all routers

3.IS － IS is often considered an alternative to OSPF in the IP world. Which two statements identify similarities between IS －IS and OSPF?()A. support for designated intermediate systems and backup designated intermediate systemsB. support for multip le areas per routerC. support for classless routingD. support for address summarization between areasE. support for both DIS adjacencies and neighbor adjacencies

4.There are three routers on a Gigabit Ethernet LAN: Router A, Router B, and Router C. Router A is the Designated Intermediate System (DIS) at Level 1 for that LAN. Router A‘s DIS priority is 64. The LAN is a Level 1-only link. Router D has just been powered up on that same LAN and its DIS priority is 80.Which statement is true?（）A. Router A remains the DIS and generates a new pseudonode LSP for that LANB. Router A remains the DIS and NO new pseudonode LSP is generated for that LANC. Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router AD. Router D becomes the new DIS, does NOT generate a new pseudonode LSP for that LAN, and does NOT purge the old pseudonode LSP generated by Router A

参考答案和解析
正确答案： A
解析： 暂无解析
更多“In the IS-IS Designated Intermediate System （DIS） election p”相关问题

  • 第1题：

    Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）

    A. supports VLSM

    B. link - state routing protocol

    C. operati on is similar to BGP

    D. supports two routing levels within an autonomous system


    参考答案：A, B, D

  • 第2题：

    Which OSPF network type is ideal for partially meshed NBMA networks because it is easy to configure（requires no configuration of neighbor commands）， consumes only one IP subnet， and requires no designated router election？


    正确答案:Point-to-multipoint.

  • 第3题：

    在优先权相同的情况下选举Designated Intermediate System（DIS），则（）。

    • A、最大MAC地址表示最高优先权
    • B、最大MAC地址表示最低优先权
    • C、最小MAC地址表示最高优先权
    • D、最小MAC地址表示最低优先权

    正确答案:A

  • 第4题：

    What three major tasks are performed by a Designated Intermediate System in an ISIS pseudonodeenvironment？（）

    • A、Updating the pseudonode LSP
    • B、maintaining pseudonode link-state information
    • C、creating the pseudonode
    • D、flooding LSPs over the LAN
    • E、election of the pseudonode

    正确答案:A,C,E

  • 第5题：

    Three IS-IS routers on a broadcast segment have different priority values configured. Which router is elected the DIS on that broadcast segment?（）

    • A、the router with the lowest priority
    • B、the router with the highest priority
    • C、the router with the highest System ID
    • D、the router with the highest IP address

    正确答案:B

  • 第6题：

    How often are IS-IS Hello packets transmitted?（）

    • A、3 seconds for DIS; 9 seconds for non-DIS
    • B、9 seconds for DIS; 3 seconds for non-DIS
    • C、10 seconds for DIS; 3 seconds for non-DIS
    • D、10 seconds for all routers

    正确答案:A

  • 第7题：

    单选题
    How often are IS-IS Hello packets transmitted?（）
    A

    3 seconds for DIS; 9 seconds for non-DIS

    B

    9 seconds for DIS; 3 seconds for non-DIS

    C

    10 seconds for DIS; 3 seconds for non-DIS

    D

    10 seconds for all routers


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    In the IS-IS Designated Intermediate System （DIS） election process， which criteria is used for DIS selection？（）
    A

    highest router ID first， then highest priority

    B

    highest MAC address first， then highest priority

    C

    highest router ID first， then highest MAC address

    D

    highest priority first， then highest router ID

    E

    highest priority first， then highest MAC address


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    What is periodically multicasted （every 10 seconds） by the DIS on a LAN to ensure IS-IS Link StateDatabase accuracy？（）
    A

    PSNP

    B

    CSNP

    C

    LSP

    D

    IIH

    E

    ISH


    正确答案： E
    解析： 暂无解析

  • 第10题：

    单选题
    Which of following is used to periodically multicast by DIS on a LAN to ensure IS-IS link state databaseaccuracy？（）
    A

    LSP

    B

    PSNP

    C

    ISH

    D

    CSNP

    E

    IIH


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    在优先权相同的情况下选举Designated Intermediate System（DIS），则（）。
    A

    最大MAC地址表示最高优先权

    B

    最大MAC地址表示最低优先权

    C

    最小MAC地址表示最高优先权

    D

    最小MAC地址表示最低优先权


    正确答案： D
    解析： 暂无解析

  • 第12题：

    多选题
    IS - IS is often considered an alternative to OSPF in the IP world. Which two statements identify similarities between IS -IS and OSPF?（）
    A

    support for designated intermediate systems and backup designated intermediate systems

    B

    support for multip le areas per router

    C

    support for classless routing

    D

    support for address summarization between areas

    E

    support for both DIS adjacencies and neighbor adjacencies


    正确答案： C,D
    解析： 暂无解析

  • 第13题：

    IS - IS is often considered an alternative to OSPF in the IP world. Which two statements identify similarities between IS -IS and OSPF?（）

    • A、support for designated intermediate systems and backup designated intermediate systems
    • B、support for multip le areas per router
    • C、support for classless routing
    • D、support for address summarization between areas
    • E、support for both DIS adjacencies and neighbor adjacencies

    正确答案:C,D

  • 第14题：

    在IS-IS中，DIS以组播地址周期性的发送CSNP报文给区域内的所有邻居。


    正确答案:正确

  • 第15题：

    Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）

    • A、supports VLSM
    • B、link - state routing protocol
    • C、operati on is similar to BGP
    • D、supports two routing levels within an autonomous system

    正确答案:A,B,D

  • 第16题：

    Which of the following is used to periodically multicast by DIS on a LAN to ensure IS-IS link state databaseaccuracy？（）

    • A、CSNP
    • B、LSP
    • C、ISH
    • D、Hello
    • E、IIH
    • F、PSNP

    正确答案:A

  • 第17题：

    Which two IS-IS hello values must match to form a Level 1 IS-IS adjacency？（）

    • A、AFI
    • B、Area
    • C、System ID
    • D、N-Selector

    正确答案:A,B

  • 第18题：

    单选题
    Three IS-IS routers on a broadcast segment have different priority values configured. Which router is elected the DIS on that broadcast segment?（）
    A

    the router with the lowest priority

    B

    the router with the highest priority

    C

    the router with the highest System ID

    D

    the router with the highest IP address


    正确答案： B
    解析： 暂无解析

  • 第19题：

    问答题
    Which OSPF network type is ideal for partially meshed NBMA networks because it is easy to configure（requires no configuration of neighbor commands）， consumes only one IP subnet， and requires no designated router election？

    正确答案： Point-to-multipoint.
    解析： 暂无解析

  • 第20题：

    多选题
    What three major tasks are performed by a Designated Intermediate System in an ISIS pseudonodeenvironment？（）
    A

    Updating the pseudonode LSP

    B

    maintaining pseudonode link-state information

    C

    creating the pseudonode

    D

    flooding LSPs over the LAN

    E

    election of the pseudonode


    正确答案： A,C
    解析： 暂无解析

  • 第21题：

    判断题
    接口优先级为0的IS-IS路由器，不能参与DIS选举。
    A

    对

    B

    错


    正确答案： 对
    解析： 暂无解析

  • 第22题：

    单选题
    There are three routers on a Gigabit Ethernet LAN: Router A, Router B, and Router C. Router A is the Designated Intermediate System (DIS) at Level 1 for that LAN. Router A's DIS priority is 64. The LAN is a Level 1-only link. Router D has just been powered up on that same LAN and its DIS priority is 80. Which statement is true?（）
    A

    Router A remains the DIS and generates a new pseudonode LSP for that LAN

    B

    Router A remains the DIS and NO new pseudonode LSP is generated for that LAN

    C

    Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router A

    D

    Router D becomes the new DIS, does NOT generate a new pseudonode LSP for that LAN, and does NOT purge the old pseudonode LSP generated by Router A


    正确答案： A
    解析： 暂无解析

  • 第23题：

    多选题
    Which two statements regarding the IS-IS DIS election process are true？ （）
    A

    A priority of 0 will prevent a router from becoming a DIS.

    B

    If the DIS becomes unavailable the backup DIS is promoted to DIS.

    C

    Adding a router with a higher priority than the current DIS will result in the new router becoming DIS.

    D

    Separate L1 and L2 election processes are held on a brodcast network.

    E

    L1 routers on a broadcast network only establish adjacencies with the DIS.

    F

    If there is a tie based on priority，the router whose attached interface has the lowest MAC address becomes the DIS.


    正确答案： D,F
    解析： 暂无解析

  • 第24题：

    单选题
    There are three IS-IS routers on a Gigabit Ethernet segment: Router A, Router B, and Router C. Each router is configured in the same area and each routers Gigabit Ethernet interface is configured for Level 1-only. Router A is the Designated Intermediate System (DIS). Each routers IP address on that segment is: Router A: 10.1.1.1/24 Router B: 10.1.1.2/24 Router C: 10.2.2.1/26 Which statement is true about all the adjacencies that exist on that LAN?（）
    A

    No routers are adjacent with each other.

    B

    Only Router A and Router B are adjacent at Level 1.

    C

    Only Router A and Router B are adjacent at Level 2.

    D

    All three routers are adjacent with each other at Level 1.


    正确答案： B
    解析： 暂无解析

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