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更多“单选题Which type of connection must be established before BGP peers can exchange update messages?()A SSLB UDPC TCPD SSH”相关问题
  • 第1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.


    参考答案:B, C

  • 第2题:

    In which state can BGP peers exchange Update messages?()

    • A、Active
    • B、OpenSent
    • C、OpenConfirm
    • D、Established
    • E、Idle

    正确答案:D

  • 第3题:

    Which type of connection must be established before BGP peers can exchange update messages?()

    • A、SSL
    • B、UDP
    • C、TCP
    • D、SSH

    正确答案:C

  • 第4题:

    Which attribute must exist in the BGP update packet?()

    • A、LOCAL_ PREF
    • B、AGGREG ATOR
    • C、AS_Path
    • D、Weight

    正确答案:C

  • 第5题:

    Once the TCP connection is established, which message type initiates the BGP peering process?()

    • A、Open
    • B、Active
    • C、Update
    • D、Notification

    正确答案:A

  • 第6题:

    You receive an EBGP route configured with the no-export community set.To which types of peers can you send this route?() (Choose two.)

    • A、no BGP peers
    • B、all I-BGP peers
    • C、all E-BGP peers within your global AS
    • D、all E-BGP peers outside your global AS

    正确答案:B,C

  • 第7题:

    Once the TCP connection is established, which message type initiates the BGP peering process?()

    • A、Open
    • B、Active
    • C、Update
    • D、Keepalive
    • E、Notification

    正确答案:A

  • 第8题:

    单选题
    In which state can BGP peers exchange Update messages?()
    A

    Active

    B

    OpenSent

    C

    OpenConfirm

    D

    Established

    E

    Idle


    正确答案: B
    解析: 暂无解析

  • 第9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10题:

    单选题
    Which type of connection must be established before BGP peers can exchange update messages?()
    A

    SSL

    B

    UDP

    C

    TCP

    D

    SSH


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    An administrator needs to update a router configuration for a router that does not support SSH.Which of the following can be used to securely update the router configuration?()
    A

    FTP

    B

    SNMPv2

    C

    TFTP

    D

    KTTPS


    正确答案: D
    解析: 暂无解析

  • 第12题:

    单选题
    Which statement describes OTV configuration on the Cisco Nexus 7000 Series Switches? ()
    A

     The OTV control-plane protocol uses the IS-IS protocol to establish adjacencies and exchange MAC reachability across the overlay network. You must enable IS-IS with the feature isis command before OTV adjacencies can be established.

    B

     OTV uses an SSM group range for neighbor discovery and to exchange MAC reachability with other OTV edge peers.

    C

     The OTV join interface is a routed uplink interface on the edge device used to physically join the overlay network.

    D

     The OTV internal interface encapsulates the site Layer 2 frames in IP unicast or multicast packets that are then sent to the other sites.


    正确答案: D
    解析: 暂无解析

  • 第13题:

    Which one of the following statements about BGP is FALSE?()

    A. BGP uses TCP port 179.

    B. BGP ensures reliability of updates by using the reliable transport services of TCP.

    C. The network command with the mask option never insta lls a prefix into the BGP table unless there is a matching prefix exists in the IP route table.

    D. A TCP connection is required before exchanging updates.

    E. BGPuses notification and the update messages to establish and maintain the BGP neighbor relati onship.


    参考答案:E

  • 第14题:

    Which one of the following statements about BGP is FALSE?()

    • A、BGP uses TCP port 179.
    • B、BGP ensures reliability of updates by using the reliable transport services of TCP.
    • C、The network command with the mask option never insta lls a prefix into the BGP table unless there is a matching prefix exists in the IP route table.
    • D、A TCP connection is required before exchanging updates.
    • E、BGPuses notification and the update messages to establish and maintain the BGP neighbor relati onship.

    正确答案:E

  • 第15题:

    Which statement describes OTV configuration on the Cisco Nexus 7000 Series Switches? ()

    • A、 The OTV control-plane protocol uses the IS-IS protocol to establish adjacencies and exchange MAC reachability across the overlay network. You must enable IS-IS with the feature isis command before OTV adjacencies can be established.
    • B、 OTV uses an SSM group range for neighbor discovery and to exchange MAC reachability with other OTV edge peers.
    • C、 The OTV join interface is a routed uplink interface on the edge device used to physically join the overlay network.
    • D、 The OTV internal interface encapsulates the site Layer 2 frames in IP unicast or multicast packets that are then sent to the other sites.

    正确答案:C

  • 第16题:

    Which description of BGP authentication is true?()

    • A、MD5 has been used by BGP to encrypt BGP update packets.
    • B、BGP uses a message-digest algorithm to authenticate BGP peers
    • C、A plain-text password authentication is an option of BGP authentication
    • D、EBGP peers authentication is faster than IBGP peers authentication
    • E、BGP uses public key and private key to authenticate BGP peers.

    正确答案:B

  • 第17题:

    You have been asked to develop an application that uses only connection-oriented protocols. Which two protocols can you use?()

    • A、PPP
    • B、UDP
    • C、TCP
    • D、ICMP

    正确答案:A,C

  • 第18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19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20题:

    单选题
    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
    解析: 暂无解析

  • 第21题:

    单选题
    Which attribute must exist in the BGP update packet?()
    A

    LOCAL_ PREF

    B

    AGGREG ATOR

    C

    AS_Path

    D

    Weight


    正确答案: B
    解析: 暂无解析

  • 第22题:

    单选题
    Which description of BGP authentication is true?()
    A

    MD5 has been used by BGP to encrypt BGP update packets.

    B

    BGP uses a message-digest algorithm to authenticate BGP peers

    C

    A plain-text password authentication is an option of BGP authentication

    D

    EBGP peers authentication is faster than IBGP peers authentication

    E

    BGP uses public key and private key to authenticate BGP peers.


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    Once the TCP connection is established, which message type initiates the BGP peering process?()
    A

    Open

    B

    Active

    C

    Update

    D

    Keepalive

    E

    Notification


    正确答案: D
    解析: 暂无解析

  • 第24题:

    单选题
    Which one of the following statements about BGP is FALSE?()
    A

    BGP uses TCP port 179.

    B

    BGP ensures reliability of updates by using the reliable transport services of TCP.

    C

    The network command with the mask option never insta lls a prefix into the BGP table unless there is a matching prefix exists in the IP route table.

    D

    A TCP connection is required before exchanging updates.

    E

    BGPuses notification and the update messages to establish and maintain the BGP neighbor relati onship.


    正确答案: C
    解析: 暂无解析