参考答案和解析
参考答案:A
更多“Which BGP attribute will not be advertised in routing updates to its neighboring routers? Select the best response.() ”相关问题
  • 第1题:

    hattwothingswillarouterdowhenrunningadistancevectorroutingprotocol?()

    A.Send periodic updates regardless of topology changes.

    B.Send entire routing table to all routers in the routing domain.

    C.Use the shortest-path algorithm to the determine best path.

    D.Update the routing table based on updates from their neighbors.

    E.Maintain the topology of the entire network in its database.


    参考答案:A, D

  • 第2题:

    Which BGP attribute is used by BGP to prevent routing loops?()

    • A、AS - path
    • B、next - hop
    • C、MED
    • D、weight
    • E、local preference
    • F、origin

    正确答案:A

  • 第3题:

    While troubleshooting an EIGRP routing problem you notice that one of the routers have generated a large number of SIA messages. What are two possible causes for EIGRP Stuck - In -Active routes?()

    • A、Some quer y or reply packets are lost between the routers.
    • B、The neighboring router starts receiving route updates from this router.
    • C、A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link).
    • D、Th e neighboring router stops receiving ACK packets from this router.

    正确答案:A,C

  • 第4题:

    What are two advantages of BGP route aggregation?() (Choose two.)

    • A、It can reduce routing table size.
    • B、It allows for optimal route selection.
    • C、It can reduce the number of routing updates.
    • D、It always shortens the attribute list for the aggregated route.

    正确答案:A,C

  • 第5题:

    Which two statements are true regarding EIGRP?()

    • A、Passive routes are in the process of being calculated by DUAL.
    • B、EIGRP supports VLSM,route summarization,and routing update authentication.
    • C、EIGRP exchanges full routing table information with neighboring routers with every update.
    • D、If the feasible successor has a higher advertised distance than the successor route,it becomes theprimary route.
    • E、A query process is used to discover a replacement for a failed route if a feasible successor is not identified from the current routing information.

    正确答案:B,E

  • 第6题:

    In which two ways does the BGP graceful capability preserve prefix information during a restart?()

    • A、The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.
    • B、The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates,the restarting router starts sending its own updates.
    • C、The peer router sends an end-of-RIB message to the restarting router.
    • D、The restarting router removes any stale prefixes after the timer for stale entries expires.
    • E、The restarting router does not remove any stale prefixes after the timer for stale entries expires.

    正确答案:B,D

  • 第7题:

    Which two routes do P routers see by default in a BGP MPLS VPN configuration? ()(Choose two.)

    • A、IGP routes advertised by P routers
    • B、IGP routes advertised by PE routers
    • C、VPN routes advertised by PE routers
    • D、VPN routes advertised by CE routers

    正确答案:A,B

  • 第8题:

    多选题
    In which two ways does the BGP graceful capability preserve prefix information during a restart?()
    A

    The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.

    B

    The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates,the restarting router starts sending its own updates.

    C

    The peer router sends an end-of-RIB message to the restarting router.

    D

    The restarting router removes any stale prefixes after the timer for stale entries expires.

    E

    The restarting router does not remove any stale prefixes after the timer for stale entries expires.


    正确答案: A,C
    解析: 暂无解析

  • 第9题:

    多选题
    In which two ways does the BGP graceful restart capability preserve prefix information during a restart?()
    A

    The peer router sends an end-of RIB message to the restarting router

    B

    The peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing table

    C

    The restarting router does not remove any stale prefixes after the timer for stale entries expires

    D

    The router establishes BGP sessions with other routers and relearns the BGP routes from other routers that are also capable of graceful restart. The restarting router waits to receive updates from the neighboring routers. When the neighboring routers send end-of-RIB messages to indicate that they are done sending updates, the restarting router starts sending its own updates

    E

    The restarting router removes any stale prefixes after the timer for stale entries expires


    正确答案: A,D
    解析: 暂无解析

  • 第10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: C
    解析: 暂无解析

  • 第11题:

    多选题
    While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes?()
    A

    Some query or reply packets are lost between the routers

    B

    The neighboring router starts receiving route updates from this router

    C

    A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link)

    D

    The neighboring router stops receiving ACK packets from this router


    正确答案: A,C
    解析: 暂无解析

  • 第12题:

    单选题
    Which of the following is the primary motivation for using BGP between an Enterprise and its ISPs?()
    A

    To influence the choice of best path (best route) for at least some routes

    B

    To avoid having to configure static routes

    C

    To allow redistribution of BGP routes into the IGP routing protocol

    D

    To monitor the size of the Internet BGP table


    正确答案: A
    解析: 暂无解析

  • 第13题:

    Which of the following is the primary motivation for using BGP between an Enterprise and its ISPs?()

    • A、To influence the choice of best path (best route) for at least some routes
    • B、To avoid having to configure static routes
    • C、To allow redistribution of BGP routes into the IGP routing protocol
    • D、To monitor the size of the Internet BGP table

    正确答案:A

  • 第14题:

    What is true regarding Autonomous Systems (AS )?()

    • A、AS numbers are assigned by the IANA
    • B、AS numbers are used by BGP (Border Gateway protocol ) to exchange IP routing information with neighboring AS
    • C、In the internet, an Autonomous System (AS) is a collection of IP networks and routers under the control
    • D、All of the Above

    正确答案:D

  • 第15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16题:

    Which statement is true about a routing table?()

    • A、It contains routers learned dynamically only
    • B、It finds the best path to each destination by using a modified shortest-path-first calculation
    • C、It contains only active BGP routes
    • D、It contains all accepted routes to all destinations

    正确答案:D

  • 第17题:

    While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes?()

    • A、Some query or reply packets are lost between the routers
    • B、The neighboring router starts receiving route updates from this router
    • C、A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link)
    • D、The neighboring router stops receiving ACK packets from this router

    正确答案:A,C

  • 第18题:

    Which of the following routing protocols involves all routers knowing the connections status ofother routers within the network?()

    • A、RIPv2
    • B、OSPF
    • C、IGRP
    • D、BGP

    正确答案:B

  • 第19题:

    单选题
    Which BGP attribute is used by BGP to prevent routing loops?()
    A

    AS - path

    B

    next - hop

    C

    MED

    D

    weight

    E

    local preference

    F

    origin


    正确答案: A
    解析: 暂无解析

  • 第20题:

    单选题
    Which BGP attribute will not be advertised in routing updates to its neighboring routers? Select the best response.()
    A

    weight

    B

    local preference

    C

    origin

    D

    AS_path

    E

    next hop


    正确答案: B
    解析: 暂无解析

  • 第21题:

    多选题
    While troubleshooting an EIGRP routing problem you notice that one of the routers have generated a large number of SIA messages. What are two possible causes for EIGRP Stuck - In -Active routes?()
    A

    Some quer y or reply packets are lost between the routers.

    B

    The neighboring router starts receiving route updates from this router.

    C

    A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link).

    D

    Th e neighboring router stops receiving ACK packets from this router.


    正确答案: C,D
    解析: 暂无解析

  • 第22题:

    单选题
    Which statement is true about a routing table?()
    A

    It contains routers learned dynamically only

    B

    It finds the best path to each destination by using a modified shortest-path-first calculation

    C

    It contains only active BGP routes

    D

    It contains all accepted routes to all destinations


    正确答案: D
    解析: 暂无解析

  • 第23题:

    多选题
    What two things will a router do when running a distance vector routing protocol? ()
    A

    Send periodic updates regardless of topology changes.

    B

    Send entire routing table to all routers in the routing domain.

    C

    Use the shortest-path algorithm to the determine best path.

    D

    Update the routing table based on updates from their neighbors.

    E

    Maintain the topology of the entire network in its database.


    正确答案: B,C
    解析: 暂无解析