Which of the following describes the roles of devices in a WAN？（）A、A CSU/DSU terminates a digital local loopB、A modem terminates a digital local loopC、A CSU/DSU terminates an analog local loopD、A modem terminates an analog local loopE、A router is commonly

题目

Which of the following describes the roles of devices in a WAN？（）

  • A、A CSU/DSU terminates a digital local loop
  • B、A modem terminates a digital local loop
  • C、A CSU/DSU terminates an analog local loop
  • D、A modem terminates an analog local loop
  • E、A router is commonly considered a DTE device
  • F、A router is commonly considered a DCE device
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3.Which of the following BEST describes RAID 1?（）A、MirroringB、StripingC、Striping with parityD、Striping with mirroring

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    Which of the following describes an area where communications equipment is stored?（）

    • A、HVAC
    • B、MDF
    • C、110 block
    • D、Demarc

    正确答案:B

  • 第2题：

    单选题
    Which of the following describes a secure connection over the Internet between two sites?（）
    A

    FTP

    B

    VLAN

    C

    VPN

    D

    HTTP


    正确答案： B
    解析： 暂无解析

  • 第3题：

    Which of the following describes what the number two represents in l00Base2 cabling?（）

    • A、Fiber
    • B、Coaxial cable
    • C、UTP
    • D、Twisted pair

    正确答案:B

  • 第4题：

    单选题
    Which of the following describes the model used by the Geodetic Extender?（）
    A

    Flat earth

    B

    3-D Square

    C

    Trapezoidal

    D

    Round earth


    正确答案： C
    解析： 暂无解析

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