Which description regarding OSPF Network LSAs is correct?()A. They are originated by Area Border Router and are sent into a single area to advertise an Autonomous System Border Router.B. They are originat ed by Area Border Routers and are sent into a sing

题目
Which description regarding OSPF Network LSAs is correct?()

A. They are originated by Area Border Router and are sent into a single area to advertise an Autonomous System Border Router.

B. They are originat ed by Area Border Routers and are sent into a single area to advertise destinations outside that area.

C. They are originated by the DR on every multi - access network. They include all attached routers including the DR itself.

D. They are originated by every router in the OPSF network. They include all routers on the link, interfaces, the cost of the link, and any known neighbor on the link.

相似考题

1.Which router translates the Type 7 LSAs into Type 5 LSAs, according to RFC 1587 (OSPF NSSAOption) in an OSPF NSSA with more than one ABR?()A. The router receiving the route translates the Type 7 LSA into a Type 5 LSA.B. The ABR with the lowest router ID translates all Type 7 LSAs into Type 5 LSAs.C. The ABR with the highest router ID translates all Type 7 LSAs into Type 5 LSAs.D. All ABRs translate the Type 7 LSAs into Type 5 LSAs depending on which one has the lowest cost to the route.

2.Refer to the exhibit. Two routers are connected by Frame Relay and are running OSPF bet ween them. Each router has been configured with the appropriate network statements under router ospf 1, but the routers are not forming an adjacency. Which of the following three commands could be configured on each router to correct this problem?（）A. RouterC(config - if)#ip ospf network broadcast RouterD(config - if)#ip ospf network broadcastB. RouterC(config - if)#ip ospf network point - to - point RouterD(config - if)#ip ospf network point - to - pointC. RouterC(config - router)#neighbor 10.100. 100.4 RouterD(config - router)#neighbor 10.100.100.3D. RouterC(config - router)#neighbor 10.255.255.254 RouterD(config - router)#neighbor 10.255.255.253

3.Refer to the exhibit. OSPF is running throughout the network. You want to minimize the propagation of LSAs into and out of A rea 1. Which OSPF feature would best achieve this goal? ()A. stubB. totally stubbyC. NSSAD. totally NSSA

4.Which of the following OSPF messages contains entire complete LSAs used during the database exchange process?()A. LSRB. LSAckC. LSUD. DDE. Hello

参考答案和解析
参考答案：C
更多“Which description regarding OSPF Network LSAs is correct?() ”相关问题

  • 第1题：

    You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）

    A. Internal routers within the backbone area (area 0)

    B. Internal routers within the NSSAs

    C. Internal routers within the stubby areas

    D. ASBRs

    E. ABRs

    F. DRs and BDRs


    参考答案：E

  • 第2题：

    Which statement is correct about an OSPF sham-link？（）

    • A、A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.
    • B、A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.
    • C、A sham-link is a logical link between PE routers that carries OSPF LSAs and forwards customer traffic across it.
    • D、A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.
    • E、A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.

    正确答案:B

  • 第3题：

    When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?（）

    • A、All OSPF routers in stubby areas can have type 3 LSAs in their database.
    • B、All OSPF routers in stubby areas can have type 7 LSAs in their database.
    • C、All OSPF routers in totally stubby areas can have type 3 LSAs in  their database.
    • D、All OSPF routers in totally stubby areas can have type 7 LSAs in their database.
    • E、All OSPF routers in NSSA areas can have type 3 LSAs in their database.
    • F、All OSPF routers in NSSA areas can have type 7 LSAs in their database.

    正确答案:A,E,F

  • 第4题：

    Which two statements are correct regarding default protocol preference values?（）

    • A、RIP is preferred over OSPF external routes.
    • B、Direct, local, and static routes have the same preference value.
    • C、OSPF's preference value is lower than BGP.
    • D、OSPF has a single preference value for both internal and external routes.

    正确答案:A,C

  • 第5题：

    Which statement best describes OSPF external LSAs （type 5）？（）

    • A、OSPF external LSAs are automatically flooded into all OSPF areas， unlike type 7 LSAs， which require that redistribution be configured.
    • B、External LSAs （type 5） are automatically changed to type 1 LSAs at ASBRs.
    • C、Type 5 LSAs are route summaries describing routes to networks outside the OSPF Autonomous System.
    • D、External network LSAs （type 5） redistributed from other routing protocols into OSPF are not permitted to flood into a stub area.

    正确答案:D

  • 第6题：

    Which show command will display only the Type 5 LSAs in the OSPF topology database？（）

    • A、show ip ospf database external
    • B、show ip ospf database nssa - external
    • C、show ip route ospf
    • D、show ip ospf datab ase summary
    • E、show ip route

    正确答案:A

  • 第7题：

    Which two statements are correct regarding the default protocol preference values? （）

    • A、RIP is preferred over OSPF external routes
    • B、Direct, local and static routes have the same preference value
    • C、OSPF's preference value is lower than BGP
    • D、OSPF has a single preference value for both internal and external routes

    正确答案:A,C

  • 第8题：

    单选题
    Which of the following OSPF messages contains entire complete LSAs used during the database exchange process?（）
    A

    LSR

    B

    LSAck

    C

    LSU

    D

    DD

    E

    Hello


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    Which show command will display only the Type 5 LSAs in the OSPF topology database？（）
    A

    show ip ospf database external

    B

    show ip ospf database nssa - external

    C

    show ip route ospf

    D

    show ip ospf datab ase summary

    E

    show ip route


    正确答案： B
    解析： 暂无解析

  • 第10题：

    多选题
    You want to limit the number of Type 7 LSAs to be converted into Type 5 LSAs at an appropriate ARB. Which two commands should you use from the [edit] hierarchy level within the JUNOS software configuration mode？（）
    A

    set protocols ospf area-range network/mask-length

    B

    set protocols ospf area area-id nssa area-range network/mask-length

    C

    set protocols ospf area area-id area-range network/mask-length restrict

    D

    set protocols ospf area area-id nssa area-range network/mask-length restrict


    正确答案： A,C
    解析： 暂无解析

  • 第11题：

    单选题
    Which router translates the Type 7 LSAs into Type 5 LSAs, according to RFC 1587 (OSPF NSSAOption) in an OSPF NSSA with more than one ABR?（）
    A

    The router receiving the route translates the Type 7 LSA into a Type 5 LSA.

    B

    The ABR with the lowest router ID translates all Type 7 LSAs into Type 5 LSAs.

    C

    The ABR with the highest router ID translates all Type 7 LSAs into Type 5 LSAs.

    D

    All ABRs translate the Type 7 LSAs into Type 5 LSAs depending on which one has the lowest cost to the route.


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    Which statement best describes OSPF external LSAs （type 5）？（）
    A

    OSPF external LSAs are automatically flooded into all OSPF areas, unlike type 7 LSAs, which require that redistribution be configured.

    B

    External LSAs (type 5) are automatically changed to type 1 LSAs at ASBRs.

    C

    Type 5 LSAs are route summaries describing routes to networks outside the OSPF Autonomous System.

    D

    External network LSAs (type 5) redistributed from other routing protocols into OSPF are not permitted to flood into a stub area


    正确答案： D
    解析： 暂无解析

  • 第13题：

    Which show command will display only the Type 5 LSAs in the OSPF topology database?()

    A. show ip ospf database external

    B. show ip ospf database nssa - external

    C. show ip route ospf

    D. show ip ospf datab ase summary

    E. show ip route


    参考答案：A

  • 第14题：

    Which description regarding OSPF Network LSAs is correct?（）

    • A、They are originated by Area Border Router and are sent into a single area to advertise an Autonomous System Border Router.
    • B、They are originat ed by Area Border Routers and are sent into a single area to advertise destinations outside that area.
    • C、They are originated by the DR on every multi - access network. They include all attached routers including the DR itself.
    • D、They are originated by  every router in the OPSF network. They include all routers on the link, interfaces, the cost of the link, and any known neighbor on the link.

    正确答案:C

  • 第15题：

    What are two benefits of using a single OSPF area network design?（）

    • A、it reduces the number of required OSPF neighbor adjacencies
    • B、It reduces the types of LSAs that are generated
    • C、It is less CPU intensive for routers in the single area
    • D、It increases LSA response times.
    • E、It removes the need for virtual links

    正确答案:B,E

  • 第16题：

    Which two statements are correct regarding default protocol preference values?（）

    • A、OSPF internal routes have a lower preference than static routes.
    • B、Both direct and local routes have the same preference value.
    • C、OSPF's preference value is lower than BGP.
    • D、OSPF has a single preference value for both internal and external routes.

    正确答案:B,C

  • 第17题：

    You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）

    • A、Internal routers within the backbone area (area 0)
    • B、Internal routers within the NSSAs
    • C、Internal routers within the stubby areas
    • D、ASBRs
    • E、ABRs
    • F、DRs and BDRs

    正确答案:E

  • 第18题：

    Which of the following OSPF messages contains entire complete LSAs used during the database exchange process?（）

    • A、LSR
    • B、LSAck
    • C、LSU
    • D、DD
    • E、Hello

    正确答案:C

  • 第19题：

    单选题
    Which CLI command displays all OSPF LSAs received by the local router？（）
    A

    show ospf neighbor

    B

    show ospf database

    C

    show ospf interface

    D

    show ospf adjacency


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    Which description regarding OSPF Network LSAs is correct?（）
    A

    They are originated by Area Border Router and are sent into a single area to advertise an Autonomous System Border Router.

    B

    They are originat ed by Area Border Routers and are sent into a single area to advertise destinations outside that area.

    C

    They are originated by the DR on every multi - access network. They include all attached routers including the DR itself.

    D

    They are originated by  every router in the OPSF network. They include all routers on the link, interfaces, the cost of the link, and any known neighbor on the link.


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）
    A

    Internal routers within the backbone area (area 0)

    B

    Internal routers within the NSSAs

    C

    Internal routers within the stubby areas

    D

    ASBRs

    E

    ABRs

    F

    DRs and BDRs


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    Which statement is correct about an OSPF sham-link？（）
    A

    A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.

    B

    A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.

    C

    A sham-link is a logical link between PE routers that carries OSPF LSAs and forwards customer traffic across it.

    D

    A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.

    E

    A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.


    正确答案： D
    解析： 暂无解析

  • 第23题：

    多选题
    Which two statements are correct regarding the default protocol preference values? （）
    A

    RIP is preferred over OSPF external routes

    B

    Direct, local and static routes have the same preference value

    C

    OSPF's preference value is lower than BGP

    D

    OSPF has a single preference value for both internal and external routes


    正确答案： D,C
    解析： 暂无解析

  • 第24题：

    多选题
    You want to limit the number of Type 7 LSAs to be converted into Type 5 LSAs at an appropriateABR. Which two commands should you use from the [edit] hierarchy level within JUNOS configuration mode?（）
    A

    set protocols ospf area-range network/mask-length

    B

    set protocols ospf area area-id nssa area-range network/mask-length

    C

    set protocols ospf area area-id area-range network/mask-length restrict

    D

    set protocols ospf area area-id nssa area-range network/mask-length restrict


    正确答案： C,A
    解析： 暂无解析

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