• [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]At which layer of the OSI model does the protocol that provides the information displayed by the "show cdp neighbors" command operate?
  • 正确答案 :D
  • Data link

  • 解析:解析:Explanation:

  • [多选题]Which of the following steps are necessary in order to add a new VLAN to the Ezonexam switched network? (Select all that apply)
  • 正确答案 :ABD
  • Create the VLAN.

    Name the VLAN.

    Add the desired ports to the new VLAN.

  • 解析:解析:Explanation:

  • [多选题]Two stations on the Ezonexam LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network? (Choose all that apply)
  • 正确答案 :BDE
  • A jam signal informs all devices that a collision occurred.

    The devices that are involved in the collision stops transmitting for a short time.

    The collision invokes a random back-off algorithm.

  • 解析:解析:Explanation:

  • [多选题]在路由器上,可以使用的命令有:()
  • 正确答案 :ABC
  • ping

    show interfaces

    show ip route

  • 解析:ABC

  • [单选题]帧中继环境中,CIR的含义是()
  • 正确答案 :B
  • 保证线路速率


  • [单选题]How many usable IP addresses can you get from a conventional Class C address?
  • 正确答案 :C
  • 254

  • 解析:解析:Explanation:

  • [单选题]访问控制列表分为标准和扩展两种。下面关于ACL的描述中,错误的是()。
  • 正确答案 :C
  • 标准ACL可以根据分组中的IP目标地址进行过滤


  • [单选题]要把交换机的配置文件保存到tftp服务器,应使用的命令为()
  • 正确答案 :B
  • copy running-configt ftp


  • [单选题]下列命令中,无法正确执行的是()
  • 正确答案 :A
  • Router(config)show run


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