Cisco网络类试题(包含CN和CP,希望对你有帮助).doc

Cisco网络类试题网络试题笔试部分1、将网络172.25.0.0划分为8个主机数相同的子网，在路由器上已经配置了ip subnet-zero的命令，下面这些地址中，那些是属于第三个子网的？（选择三个正确答案）（ acd ）A. 172.25.78.243B. 172.25.98.16C. 172.25.72.0D. 172.25.94.255E. 172.25.96.17F. 172.25.100.162、如果下面这些问题真实的发生在公司的路由器上：（ b ）1） Flash中的IOS镜像丢失2） 没有网络连接是可用的3） 路由器的fallback IOS镜像被损坏了Cisco 2600系列路由器在启动的过程中会怎么样？A. 路由器进入Setup mode.B. 路由器进入ROM monitor mode.C. 路由器进入global configuration mode.D. 启动将中止，直到IOS可用.3、网络管理员可以使用哪些命令同时检查RIP，IGRP，EIGRP和OSPF路由协议的配置？（选择两个正确答案）（ ）A. debug ip routingB. show running-configC. show ip route protocolsD. show ip protocolsE. show protocols all4、在以太网中，下列哪些条件可能导致网络拥塞？（选择两个正确答案）（ ）A. The use of Full-Duplex Mode.B. The Creation on New Collision Domains.C. The Creation on New Broadcast Domains.D. The Addition of Hubs to the Network.E. The use of switches in the Network.F. The Amount of ARP or IPX SAP Traffic.5、IEEE制订的Gigabit以太网标准？（选择两个正确答案）（ ）A. 802.11B. 802.5C. 802.3abD. 802.3aeE. 802.3zF. 802.3u6、公司网络的5个路由器如下图连接：（ ）Router A将发送数据到Router E，下面这些描述中，哪些是正确的？（选择三个正确答案） A. Router A will determine that all paths have an equal cost if RIP is the routingprotocol.B. Router A will install only the ADE path in its routing table if RIP is the routingprotocol.C. Router A will determine that path ACE has the lowest cost if IGRP is the routingprotocol.D. Router A will determine that path ADE has the lowest cost if IGRP is the routingprotocol.E. Router A will use the route information learned by IGRP if both RIP and IGRP are configured on router A.F. Router A will use the route information learned by RIP if both RIP and IGRP areconfigured on router A.7、哪一条命令能够显示拓扑和路由表中数据包和EIGRP处理内容？（ ）A. debug ip eigrpB. debug eigrp packetC. show ip eigrp topologyD. show ip eigrp interface8、使用网络命令EIGRP的目的是什么？（ ）A. to determine which router interfaces participate in EIGRP and which networks the router advertisesB. to specify the autonomous system number to which the router belongsC. to define the EIGRP neighborsD. to tell EIGRP which networks to advertise, those directly connected and thoselearned through EIGRP9、哪一条OSPF show命令可以描述OSPF邻接关系？（ ）A. show ip ospf interfaceB. show ip ospfC. show ip routeD. show ip ospf neighbor10、三台路由器连接到以太网的局域网中，你如何保证一台小路由器不能成为DR或BDR的角色？（ ）A. Set the interface priority to 100.B. Set the interface priority to 0.C. Leave the interface priority set to 1 and set the priority of the other two routers to 10.D. Use the no designated-router command on the Ethernet interface.11、哪一条命令你能够总结routes从ABR到area 0？（ ）A. summary-addressB. area x rangeC. networkD. area x summary12、使用virtual link的三个原因?（选择三个正确答案）（ ）A. temporary backup purposesB. temporary connection due to network moves or changesC. building a permanent backboneD. backup of a disconnected area 013、哪两个特征用来描述IS-IS?（选择两个正确答案）（ ）A. It is an Interior Gateway Protocol (IGP).B. It is an Exterior Gateway Protocol (EGP).C. It is efficient in its use of network resources.D. It is an advanced distance vector routing protocol.14、什么命令能够查看participating in IS-IS? （ ）A. show clns protocolB. show clns interfaceC. show isis routeD. show isis database15、哪一条命令能够显示IS-IS邻居路由？（ ）A. show ip protocolsB. show clns protocolsC. show ip route isisD. show ip route16、网络中从一种路由协议换为另一种路由协议，那三种方案最好？（选择三个正确答案）（ ）A. access listsB. NAT translationsC. host addressingD. WAN connection type17、哪一种路由方式用来描述BGP路由协议最恰当？（ ）A. distance vectorB. link-stateC. path-vectorD. hybrid of link-state and distance vector18、哪两个网络特性适用VLANs？（选择两个正确答案）（ ）A. All devices in a VLAN are members of the same broadcast domain.B. The most common type of VLAN is a protocol VLAN.C. VLAN membership is most commonly based on a switch port number.D. A VLAN is the same as a physical subnet.19、选择一条命令显示端口信息来检查ISL trunk配置。（ ）A. Switch#show running-config interface fastethernet | gigabitethernet slot/portB. Switch(config)#interface fastethernet | gigabitethernet slot/portC. Switch(config-if)#switchport mode dynamic desirableD. Switch#show interfaces fastethernet 5/8 trunk 20、使用BPDU信息的目的是什么？（选择两个正确答案）（ ）A. determines the lowest cost path to the root switchB. the election of a root switch as a Layer 3 topology point of referenceC. the election of a designated switch and corresponding designated port for every switched segmentD. removal of loops in the switched network by disabling ports21、在Catalyst switch 上，哪一条命令能够为VLAN200启用生成树？（ ）A. switch(config)#spanning-tree vlan 200B. switch(config-if)#spanning-tree vlan 200C. switch(config)#spanning-tree mode pvst vlan 200D. switch(config-if)#spanning-tree mode pvst vlan 20022、哪条命令是正确的在Catalyst switch 上配置RPR+ redundancy模式？（ ）A. Switch(config)#mode rpr-plusB. Switch(config-red)#mode rpr-plusC. Switch(config-red)#redundancy rpr-plusD. Switch(config)#redundancy mode rpr-plus23、哪一条命令能够显示端口上策略的配置和统计信息？（ ）A. show policy-mapB. show policy-map policy-nameC. show policy-map interface interface-spec outputD. show policy map interface interface-spec output class class-name24、哪一条命令能够配置SPAN接口监视进入的流量？（ ）A. monitor session 1 source interface fastethernet 5/1 rxB. monitor session 1 source interface fastethernet 5/1 txC. monitor session 1 destination interface fastethernet 5/1D. monitor session 1 source interface fastethernet 5/1 both25、一个NIC在终端设备上被更换了，可是，终端系统仍然不能与本地网络连接，检查终端系统网关的配置信息，根据给出的信息选择可能解决问题的办法 。（ ）Interface Ethernet0ip address 192.168.1.254 255.255.255.0no ip directed-broadcastA. clear interface Ethernet0B. clear arp-cacheC. ip directed-broadcastsD. debug ip packet detail26、将下列各层从高到低排列为正确的顺序：会话层（a），表示层（b），物理层（c），数据链路层（d），网络层（e），应用层（f），传输层（g）（ ）A. c,d,e,g,a,b,fB. f,a,b,g,d,e,cC. f,b,g,a,e,d,cD. f,b,a,g,e,d,c 27、 以下哪连接允许使用全双工以太网?（选三个）（ ） A Switch连主机B Switch连SwitchCHub连HubD交换机练HubE主机连主机 28、以下哪些主机地址是能出现在Internet的网络成员？（选三个）（ ） A.10.172.13.65 B.172.16.223.125 C.172.64.12.29 D.192.168.23.252 E.198.234.12.95 F.212.193.48.254 29、什么是全局命令？（ ）A. 它作用于每个IOS版本，不考虑IOS版本或者部署状态B. 它能在任何配置模式下输入C. 它应用的非常广泛并且支持所有的协议D. 它应用在所有的国内外IOS版本E. 它一旦设置了，就会影响整台路由器 30、以下那种NAT通过使用不同的端口来映射多个私有IP地址到一个单独的公网IP地址？（ ）A. 静态NATB. 动态NATC. overloading（过载翻译）D. overlapping（重叠）E. port loading（端口载入） 31、 某公司内部网络用29bits划分子网，如下哪一个反掩码应该被用来配置一个扩展性的访问控制列表用来允许或拒绝访问整个子网? （ ）A. 255.255.255.224B. 255.255.255.248C. 0.0.0.224D. 0.0.0.8E. 0.0.0.7F. 0.0.0.3 32、 如图所示，临时从Remote27路由器上开一个Telnet,让ACCESS1路由器连接到Remote27上，根据图中所示配置Telnet命令，没有成功。请你根据图中错误，配置正确的命令解决这个问题？ （ ）Remote27#Remote27#telnet access1Trying ACCESS1(10.0.0.1)OpenPassword required, but none setConnection to access1 closed by foreign hostRemote27# A. ACCESS1(config)# line console 0 ACCESS1(config-line)# password ciscoB. Remote27(config)# line console 0 Remote27(config-line)# login Remote27(config-line)# password ciscoC. ACCESS1(config)# line vty 0 4 ACCESS1(config-line)# login ACCESS1(config-line)# password ciscoD. Remote27(config)# line vty 0 4 Remote27(config-line)# login Remote27(config-line)# password ciscoE. ACCESS1(config)# enable password ciscoF. Remote27(config)# enable password cisco 33、 如图所示，查看serial0/0接口信息，出现图中第二行的问题，很可能是什么原因？（选三个）（ ）Router#show interfaces serial 0/0Serial0/0 is up, line protocol is downHardware is HD64570Internet address is 192.168.100.1/24Password required, but none setMTU 1500bytes,BW 1544 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255Encapsulation HDLC, loop back not setKeepalive set(10 sec) A. 接口是sh