• [单选题]常见的LSA有几种类型()
  • 正确答案 :C
  • 6


  • [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]RIP路由协议认为“网络不可到达”的跳数是:()
  • 正确答案 :B
  • 16


  • [单选题]路由器“路由模式”的提示符号是()
  • 正确答案 :D
  • (config-router)


  • [单选题]OSI七层模型中,网络层的数据封装名称为()
  • 正确答案 :C

  • [单选题]路由器上激活端口的命令是()
  • 正确答案 :B
  • no shutdown


  • [多选题]对于IP为199.41.27.0,子网掩码为255.255.255.240,则该IP地址和子网掩码相作用会得到一系列IP,从下列选项中选出属于“有效IP”的选项:()
  • 正确答案 :ABCD
  • 199.141.27.33

    199.141.27.112

    199.141.27.119

    199.141.27.126

  • 解析:ABCD

  • [单选题]A receiving host has failed to receive all of the segments that it should acknowledge.What can the host do to improve the reliability of this communication session?
  • 正确答案 :E
  • Decrease the window size

  • 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]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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