• [单选题]当拓扑信息完成交换,相邻路由器具有相同的LSDB时,下列哪项OSPF邻居状态是希望得到的()
  • 正确答案 :B
  • FULL


  • [单选题]PPP工作在OSI的哪一层()
  • 正确答案 :B
  • 数据链路层


  • [单选题]备份路由器IOS的命令是:()
  • 正确答案 :A
  • copy flash tftp


  • [单选题]OSI七层模型中,“段”是哪一层数据封装的名称()
  • 正确答案 :D
  • 传输层


  • [单选题]某台PC,能ping通路由器,但不能telnet到路由器,可能的原因是()
  • 正确答案 :D
  • telnet密码未设置


  • [多选题]网络中经常使用DDN服务,请选出DDN的优点()
  • 正确答案 :ADE
  • 传输质量高

    使用虚电路

    专用线路

  • 解析:ADE

  • [多选题]Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet? (Select two answer choices.)
  • 正确答案 :BD
  • Half-duplex Ethernet uses a loopback circuit to detect collisions.

    Full-duplex Ethernet makes use of two pairs of wires for data.

  • 解析:解析:Explanation:

  • [单选题]Ezonexam has implemented the use of the Virtual Trunking Protocol (VTP). Which statement below accurately describes a benefit of doing this?
  • 正确答案 :B
  • VTP will allow switches to share VLAN configuration information


  • [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]You need to configure a default route on a Ezonexam router. Which command will configure a default route on a router?
  • 正确答案 :ABCD
  • VE1(config) ip route 0.0.0.0 10.1.1.0 10.1.1.1

    VE1(config) ip default-route 10.1.1.0

    VE1(config) ip default-gateway 10.1.1.0

    VE1(config) ip route 0.0.0.0 0.0.0.0 10.1.1.1

  • 解析:解析:Explanation:Thecommand"IProute0.0.0.00.0.0.0quot;$commandisusedtoconfigureadefaultrouteonarouter.Inthiscase,adefaultroutewithanexthopIPaddressof10.1.1.1wasconfigured.IncorrectAnswers:A.Thiswillbeaninvalidroute,sincethe"10.1.1.0"valuewillspecifythenetworkmask,whichinthiscaseisinvalid.B,C.Thesecommandsareinvalid.Thecommand"ipdefault-network"couldbeused,butnot"ipdefault-route"or"ipdefault-gateway".IPdefault-gatewayisusedonswitches,notrouters.

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