• [单选题]标准访问控制列表应被放置的最佳位置是在()。
  • 正确答案 :B
  • 越靠近数据包的目的地越好


  • [单选题]路由器下,由一般用户模式进入特权用户模式的命令是:()
  • 正确答案 :A
  • enable


  • [单选题]OSI七层模型中,“包”是哪一层数据封装的名称()
  • 正确答案 :C
  • 网络层


  • [单选题]关于PPP和HDLC的说法中,错误的是()
  • 正确答案 :D
  • 在配置ISDN时,广域网协议不能封装成PPP,但可以封装成HDLC


  • [单选题]IP地址为:192.168.50.70,掩码为:255.255.255.248,则该IP和掩码结合,共划分了多少个子网(不包括全0子网和全1子网)()
  • 正确答案 :B
  • 30


  • [多选题]在配置帧中继子接口时,在物理接口上应该配置的内容是:()
  • 正确答案 :BCD
  • 封装帧中继协议

    指定子接口类型

    设定子接口

  • 解析:BCD

  • [单选题]You are a senior network administrator at Ezonexam, and while performing the password recovery procedure on your 2500 series Cisco router, you type in the following command:o/r 0x2142
  • 正确答案 :C
  • It is used to bypass the configuration in NVRAM.

  • 解析:解析:Explanation:

  • [单选题]You have just purchased a brand new router and wish to have the router prompt you through the initial configuration commands. Which router mode does this describe?
  • 正确答案 :B
  • SETUP mode

  • 解析:解析:Explanation:

  • [单选题]The Ezonexam LAN is upgrading all devices to operate in full duplex. Which statement is true about full-duplex Ethernet in comparison to half-duplex Ethernet?
  • 正确答案 :C
  • Full-duplex Ethernet can provide higher throughout than can half-duplex Ethernet of the same bandwidth


  • [多选题]Which of the following are types of flow control? (Choose three)
  • 正确答案 :ACD
  • Buffering

    Windowing

    Congestion avoidance

  • 解析:解析:Explanation:Datatransmissionflowcontroloccursatlayer4withthehelpofbuffering,windowingandcongestionavoidance.

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