On which destination port in the Layer 4 header does BGP listen?()A. UDP port 169B. TCP port 169C. UDP port 179D. TCP port 179

题目
On which destination port in the Layer 4 header does BGP listen?()

A. UDP port 169

B. TCP port 169

C. UDP port 179

D. TCP port 179

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更多“On which destination port in the Layer 4 header does BGP listen?() ”相关问题

  • 第1题：

    WhichheaderorsetofheadersdoesCRTPcompress?()

    A.Layer2

    B.Layer3

    C.Layer4

    D.Layer2andLayer3

    E.Layer3andLayer4


    参考答案：E

  • 第2题：

    关于高级访问列表中的destination－port参数,下面描述正确的是()

    A.Destination-port是可选参数

    B.Destination-port用于指定UDP或TCP报文的源端口信息

    C.仅仅在规则指定的协议号是TCP或者UDP时有效

    D.如果不指定，表示TCP/UDP报文的任何目的端口信息都匹配


    参考答案：A, C, D

  • 第3题：

    6LoWPAN 在设计 IPv6 header 压缩主要是将 IPv6 headers 之间的共同值省略或是可以由 layer 2 header 取得数据而省略. 下列哪些叙述是正确的 ？

    A.version 欄位可省略, 因为都是 IPv6#B.Payload length 欄位可以省略, 因为可以由 Layer 2 header 计算得知#C.Source/Destination IPv6 address 欄位无法省略, 因为封包一定要有 IPv6 网址#D.如果是 Link-local IPv6 address 就可以省略, 因为 IPv6 网址的Interface ID 可以由 layer 2 MAC address 取得
    version 欄位 可省略 , 因为都是 IPv6;Payload length 欄位 可以省略 , 因为可以由 Layer 2 header 计算得知;如果是 Link-local IPv6 address 就可以省略 , 因为 IPv6 网址的 Interface ID 可以由 layer 2 MAC address 取得

  • 第4题：

    4．—_________ Mike________ his homework in the evening?

    —No，he doesn't．

    A． Do；does

    B． Does；do

    C． Do；do

    D． Does；does


    正确答案：B
    4.B【解析】考查实义动词的疑问式为“Does+主语+do，故选B。

  • 第5题：

    Together with the network layer,the transport layer is the heart of the protocol ( ).The network layer provides end-to-end () delivery using datagrams or virtual circuits.The transport layer builds on the network layer to provide data transport from a process on a (请作答此空) machine to a process on a destination machine with a desired level of reliability that is independent of the physical () currently in use.It provides the abstractions that applications nedd to use the network..Without the () layer,the whole concept of layered protocols would make little sense.

    A.connection
    B.terminal
    C.source
    D.destination

    答案：C
    解析：

  • 第6题：

    2、使用nginx作为反向代理的主要原因是（）。

    A．性能和安全

    B．port

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    Web服务器

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