单选题BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?()A upstream EBGP neighborsB downstream EBGP neighborsC upstream IBGP neighbors learned by IBGP peersD downstream IBGP neighbors learned by IBGP

题目
单选题
BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?()
A

upstream EBGP neighbors

B

downstream EBGP neighbors

C

upstream IBGP neighbors learned by IBGP peers

D

downstream IBGP neighbors learned by IBGP peers


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  • 第1题:

    Which three conditions can cause BGP n eighbor establishment to fail?()

    A. The IBGP neighbor is not directly connected.

    B. BGP synchronization is enabled in a transit autonomous system with fully - meshed IBGP neighbors.

    C. The EBGP neighbor ebgp - multihop option is set to the de fault value.

    D. The BGP update interval is different between the two BGP neighbors.

    E. The BGP neighbor is referencing an incorrect autonomous system number in its neighbor statement.

    F. There is an access list blocking all TCP traffic between the two BGP neighbors.


    参考答案:C, E, F

  • 第2题:

    In BGP routing,what does the rule of synchronization mean?()

    • A、A BGP router can only advertise an EBGP learned route,provided that the route is an IGP route in the routing table.
    • B、A BGP router can only advertise an IBGP learned route,provided that the route is an IGP route in the routing table.
    • C、A BGP router can only advertise an IBGP learned route,provided that the route is an IGP route that is not in the routing table.
    • D、A BGP router can only advertise an EBGP learned route,provided that the route is a metric of 0 in the BGP table.

    正确答案:B

  • 第3题:

    BGP协议中规定了BGP的两种邻居类型:IBGP对等体和EBGP对等体,有关对这些对等体路由的通告描述正确的是()。

    • A、BGP把从EBGP获得的路由向IBGP对等体通告
    • B、BGP把从EBGP获得的路由向EBGP对等体通告
    • C、BGP把从IBGP获得的路由向IBGP对等体通告
    • D、BGP一定会把从IBGP获得的路由信息向EBGP对等体通告

    正确答案:A,B

  • 第4题:

    What is the BGP synchronization rule?()

    • A、Routing information received through an IBGP session is not forwarded to another IBGP neighbor, onlyto EBGP neighbors
    • B、Routing information received through an EBGP session is not forwarded to another EBGP neighbor,only to IBGP neighbors
    • C、BGP neighbor peerings are established and sychronized using the TCP 3-way handshake
    • D、BGP shall not advertise a route until that route has been learned via an IGP also

    正确答案:D

  • 第5题:

    BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?()

    • A、upstream EBGP neighbors
    • B、downstream EBGP neighbors
    • C、upstream IBGP neighbors learned by IBGP peers
    • D、downstream IBGP neighbors learned by IBGP peers

    正确答案:A

  • 第6题:

    By default, routes learned via IBGP will be announced to which peers?()

    • A、IBGP peers
    • B、EBGP peers
    • C、active BGP peers
    • D、established BGP peers

    正确答案:B

  • 第7题:

    单选题
    Which types of prefixes will a router running BGP most likely advertise to an IBGP peer, assuming it is not configured as a route reflector? ()
    A

     prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributed

    B

     all prefixes in its routing table

    C

     prefixes received from EBGP peers and prefixes locally originated via network statements or redistributed

    D

     prefixes received from EBGP peers and prefixes received from route reflectors

    E

     prefixes received from other IBGP peers, prefixes received from EBGP peers, and prefixes redistributed to BGP

    F

     prefixes received from other IBGP peers and prefixes received from route reflectors


    正确答案: C
    解析: 暂无解析

  • 第8题:

    多选题
    Which three conditions can cause BGP n eighbor establishment to fail?()
    A

    The IBGP neighbor is not directly connected.

    B

    BGP synchronization is enabled in a transit autonomous system with fully - meshed IBGP neighbors.

    C

    The EBGP neighbor ebgp - multihop option is set to the de fault value.

    D

    The BGP update interval is different between the two BGP neighbors.

    E

    The BGP neighbor is referencing an incorrect autonomous system number in its neighbor statement.

    F

    There is an access list blocking all TCP traffic between the two  BGP neighbors.


    正确答案: C,B
    解析: 暂无解析

  • 第9题:

    单选题
    Why should iBGP sessions be fully meshed within a Transit AS?()
    A

    BGP requires redundant TCP sessions between iBGP peers.

    B

    Routes learned via eBGP are never propagated to other iBGP peers.

    C

    A full mesh allows for optimal routing within the Transit AS.

    D

    Routes learned via iBGP are never propagated to other eBGP peers.

    E

    Routes learned via iBGP are never propagated t o other iBGP peers.


    正确答案: A
    解析: 暂无解析

  • 第10题:

    多选题
    Which two statements are true about IBGP neighbor relationships?()
    A

    The BGP split - horizon rule specifies that routes learned via EBGP are never propagated to other IBGP peers.

    B

    The BGP split horizon rule specifies that routes learned via IBGP are never propagated to other IBGP peers.

    C

    A full - mesh IBGP requires that neighbor relationships be established between a ll BGP enabled routers in the autonomous system.

    D

    IBGP neighbors must be in different autonomous systems.

    E

    An EGP or static routing is required between IBGP neighbors.


    正确答案: B,A
    解析: 暂无解析

  • 第11题:

    单选题
    What is the BGP synchronization rule?()
    A

    Routing information received through an IBGP session is not forwarded to another IBGP neighbor, onlyto EBGP neighbors

    B

    Routing information received through an EBGP session is not forwarded to another EBGP neighbor,only to IBGP neighbors

    C

    BGP neighbor peerings are established and sychronized using the TCP 3-way handshake

    D

    BGP shall not advertise a route until that route has been learned via an IGP also


    正确答案: C
    解析: 暂无解析

  • 第12题:

    单选题
    Which command displays the IBGP and EBGP neighbors that are configured?()
    A

    show ip bgp paths

    B

    show ip bgp peers

    C

    show ip bgp

    D

    show ip bgp summary


    正确答案: C
    解析: 暂无解析

  • 第13题:

    Which command displays the IBGP and EBGP neighbors that are configured?()

    A. show ip bgp paths

    B. show ip bgp peers

    C. show ip bgp

    D. show ip bgp summary


    参考答案:D

  • 第14题:

    When BGP is used as the PE-CE routing protocol, which of these statements is correct?()

    • A、On the CE router, PE neighbors must be configured in the VRF context on the CE router
    • B、On PE routers, the CE IBGP neighbors are configured in the global BGP configuration
    • C、On PE routers, the CE EBGP neighbors are configured in the VRF context
    • D、A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router's other provider neighbors

    正确答案:C

  • 第15题:

    Which types of prefixes will a router running BGP most likely advertise to an IBGP peer, assuming it is not configured as a route reflector?()

    • A、prefixes received from any other BGP peer and prefixes locally originated via networkstatements or redistributed
    • B、all prefixes in its routing table
    • C、prefixes received from EBGP peers and prefixes locally originated via network statements or redistributed
    • D、prefixes received from EBGP peers and prefixes received from route reflectors
    • E、prefixes received from other IBGP peers, prefixes received from EBGP peers,and prefixes redistributed to BGP
    • F、prefixes received from other IBGP peers and prefixes received from route reflectors

    正确答案:C

  • 第16题:

    Which command displays the IBGP and EBGP neighbors that are configured?()

    • A、show ip bgp paths
    • B、show ip bgp peers
    • C、show ip bgp
    • D、show ip bgp summary

    正确答案:D

  • 第17题:

    By default, to which peers will a BGP router advertise routes learned from IBGP peers?()

    • A、all BGP peers
    • B、all IBGP peers
    • C、all EBGP peers
    • D、all MBGP peers

    正确答案:C

  • 第18题:

    Which choice describes the JUNOS software default policy action for BGP routes?()

    • A、IBGP peers
    • B、EBGP peers
    • C、Active BGP peers
    • D、Established BGP peers

    正确答案:B

  • 第19题:

    单选题
    By default, to which peers will a BGP router advertise routes learned from IBGP peers?()
    A

    all BGP peers

    B

    all IBGP peers

    C

    all EBGP peers

    D

    all MBGP peers


    正确答案: A
    解析: 暂无解析

  • 第20题:

    单选题
    Which types of prefixes will a router running BGP most likely advertise to an IBGP peer, assuming it is not configured as a route reflector?()
    A

    prefixes received from any other BGP peer and prefixes locally originated via networkstatements or redistributed

    B

    all prefixes in its routing table

    C

    prefixes received from EBGP peers and prefixes locally originated via network statements or redistributed

    D

    prefixes received from EBGP peers and prefixes received from route reflectors

    E

    prefixes received from other IBGP peers, prefixes received from EBGP peers,and prefixes redistributed to BGP

    F

    prefixes received from other IBGP peers and prefixes received from route reflectors


    正确答案: D
    解析: 暂无解析

  • 第21题:

    单选题
    Which types of prefixes will a router running BGP most likely advertise to an IBGP peer, assuming it is notconfigured as a route reflector?()
    A

    prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributed

    B

    all prefixes in its routing table

    C

    prefixes received from EBGP peers and prefixes locally originated via network statements or     redistributed

    D

    prefixes received from EBGP peers and prefixes received from route reflectors

    E

    prefixes received from other IBGP peers, prefixes received from EBGP peers,and prefixes redistributedto BGP

    F

    prefixes received from other IBGP peers and prefixes received from route reflectors


    正确答案: E
    解析: 暂无解析

  • 第22题:

    单选题
    When BGP is used as the PE-CE routing protocol, which of these statements is correct?()
    A

    On the CE router, PE neighbors must be configured in the VRF context on the CE router

    B

    On PE routers, the CE IBGP neighbors are configured in the global BGP configuration

    C

    On PE routers, the CE EBGP neighbors are configured in the VRF context

    D

    A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router's other provider neighbors


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    In BGP routing, what does the rule of synchronization mean?()
    A

    A BGP router can only advertise an EBGP learned route, provided that the route is an IGP route in the routing table.

    B

    A BGP router can only advertise an IBGP learned route, provided that the route is an IGP route in the routing table.

    C

    A BGP router can only advertise an IBGP learned route, provided that the route is an IGP route that is not in the routing table.

    D

    A BGP router can only advertise an EBGP learned route, provided that the route is a metric of 0 in the BGP table.


    正确答案: B
    解析: 暂无解析