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“路由和交换”自我水平测试评估（1级）Part C

2013-02-14 12:46 323 查看
[align=left]21. [/align][align=left]Router R4 has two working Ethernet interfaces, and each interface has been configured with an IP address. What is the minimum number of routes that R4 should have in its routing table?one route split between each directly connected subnettwo routes for each directly connected subnettwo routes, one for each directly connected subnetfour routes, two for each directly connected subnetsix routes, two for each directly connected subnet[/align]
[align=left]21. 路由器R4有两个以太网接口正在工作，每一个接口均配置有IP地址。R4在其路由表中至少需具备多少个路由？[/align]
[align=left]一个路由，针对每一个直接连接的子网进行拆分[/align]
[align=left][/align][align=left]两个路由，用于支持所有直接连接的子网[/align]
[align=left]两个路由，每一个直接连接的子网一个[/align]
[align=left]四个路由，每一个直接连接的子网两个[/align]
[align=left]六个路由，每一个直接连接的子网两个[/align]
[align=left]22. [/align][align=left]Which of these commands can be used to load a new version of Cisco IOS software onto a router?copy tftp flashcopy ftp flashload flash tftpcopy flash ftpcopy tftp startup-config[/align]
[align=left]22. 以下哪一命令可用于在路由器上加载新版本的Cisco IOS软件？[/align]
[align=left][/align][align=left]copy tftp flash[/align]
[align=left]copy ftp flash[/align]
[align=left]load flash tftp[/align]
[align=left]copy flash ftp[/align]
[align=left]copy tftp startup-config[/align]
[align=left]23. [/align][align=left]How many wires are needed for a PC to successfully send data to and receive data from another PC using an Ethernet LAN cable with RJ-45 connectors?OneTwoFourEight[/align]
[align=left]23. 在以太网线缆中使用的RJ-45接头需要用多少根线才能实现数据的收发？[/align]
[align=left]一条[/align]
[align=left]两条[/align]
[align=left][/align][align=left]四条[/align]
[align=left]八条[/align]
[align=left]24. [/align][align=left]Which two of these are routing protocols? (Choose two.)RIPIPXIPOSPFbroadcast[/align]
[align=left]24. 以下哪两项属于路由协议？（选择两项。）[/align]
[align=left][/align][align=left]RIP[/align]
[align=left]IPX[/align]
[align=left]IP[/align]
[align=left][/align][align=left]OSPF[/align]
[align=left]广播[/align]
[align=left]25. [/align][align=left]How many layers are in the OSI reference model?3467[/align]
[align=left]25. OSI参考模型中有多少层？[/align]
[align=left]3[/align]
[align=left]4[/align]
[align=left]6[/align]
[align=left][/align][align=left]7[/align]
[align=left]26. [/align][align=left]The IP address 172.16.12.4 /26 has which subnet mask?255.0.0.0255.255.0.0255.255.255.0255.255.255.192255.255.255.224[/align]
[align=left]26. IP地址172.16.12.4/26采用哪一个子网掩码？[/align]
[align=left]255.0.0.0[/align]
[align=left]255.255.0.0[/align]
[align=left]255.255.255.0[/align]
[align=left][/align][align=left]255.255.255.192[/align]
[align=left]255.255.255.224[/align]
[align=left]27. [/align][align=left]Which term defines how many bits per second the service provider commits to pass over a single PVC?access rateBECNCIRFECNheader rate[/align]
[align=left]27. 哪一个术语定义了电信运营商承诺每秒通过单个PVC的字节数？[/align]
[align=left]访问速率[/align]
[align=left]BECN[/align]
[align=left]CIR[/align]
[align=left][/align][align=left]FECN[/align]
[align=left]标头速率[/align]
[align=left]28. [/align][align=left]Which best describes unicast traffic?data traffic that is sent to one devicedata traffic that is sent to all devices in the same VLANdata traffic that is redistributed from an external ASdata traffic sent to routers that are configured to receive the same data stream[/align]
[align=left]28. 哪一选项恰当地描述了单播流量？[/align]
[align=left][/align][align=left]被发送到一个设备的数据流量[/align]
[align=left]被发送到同一VLAN中所有设备的数据流量[/align]
[align=left]通过外部AS重新分发的数据流量[/align]
[align=left]发送到配置用来接收相同数据流的路由器的数据流量[/align]
[align=left]29. [/align][align=left]Which topology uses a central device for point-to-point connections to other devices?BusTreeRingStar[/align]
[align=left]29. 哪一种拓扑结构采用了中央设备来为其他设备提供点对点连接？[/align]
[align=left]总线型[/align]
[align=left]树型[/align]
[align=left]环型[/align]
[align=left][/align][align=left]星型[/align]
[align=left]30. [/align][align=left]Which two of these are key functions of routers? (Choose two.)provide packet forwardingprovide path determinationserve as end station connectivityprovide microsegementation for WAN links[/align]
[align=left]30. 以下哪两项属于路由器的主要功能？（选择两项。）[/align]
[align=left][/align][align=left]提供数据包转发功能[/align]
[align=left][/align][align=left]提供路径判断功能[/align]
[align=left]提供端点连接功能[/align]
[align=left]对广域网链路进行微分段[/align]
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