CISCOCCNA网络工程师题库

培训大讲堂官方YY频道：3660mCCNA题库考试代号：640-802考试时间：英文110+30=140分钟通过分数：825题库版本：V104.4鸿鹄论坛招募CCNA、CCNP答疑讲师答疑地点：鸿鹄官方YY频道3660鸿鹄大讲堂：题库战报交流QQ群：144288127（500人超级群）CCNA题库战报交流区：视频教程免费下载：（640-802）题库V104.4CCNA（640-802）题库V104.4（情人节版）CCNA题库战报500人超级QQ群144288127V104系列是官方的终结版本，以后不会再出V105V106V108等等CCNA最新题库/最新战报发布区：下载官方正版题库、看最新考试战报，请随时关注鸿鹄论坛，详情请联系鸿鹄全国区十七名客服QQ712023090-712023106========================================更新内容：V104.1修正V104中错误题目，确定经典争议题目答案；V104.2增加拖图题并可完美模拟考试，VCE题库增加中文注释；V104.3针对思科CCNA考试变题，更新考试新增题目93Q,更新V104.2实验题；V104.4增加全文中文注释，汇总V104.3九次更新，删除部分旧题目，为目前最新官方正版题库；2011.8.1增加每日新题，修订部分错误。2012.2.14情人节版增加5道新题，分别是519、520、521、522、523题修改176题、375题、443题、482题答案错误修改59题、88题、453题、107题、270题注释错误增加个别疑难拖图题注释，优化实验题=============================================QUESTION1Whenyouareloggedintoaswitch,whichpromptindicatesthatyouareinprivilegedmode?(当您登录到交换机，哪种提示表明你在特权模式？)A.%B.@C.D.$E.#Answer:ESection:Chapter4:IntroductiontoCiscoIOSExplanation/Reference:特权模式就是#提示符QUESTION2Whichcommandshowssystemhardwareandsoftwareversioninformation?(哪些命令显示系统硬件和软件的版本信息？)A.showconfigurationB.showenvironmentC.showinventoryD.showplatformE.showversionAnswer:ESection:Chapter4:IntroductiontoCiscoIOSExplanation/Reference:查看系统的软件和硬件信息使用的命令是showversionQUESTION3CiscoCatalystswitchesCAT1andCAT2haveaconnectionbetweenthemusingportsFA0/13.An802.1Qtrunkisconfiguredbetweenthetwoswitches.OnCAT1,VLAN10ischosenasnative,butonCAT2thenativeVLANisnotspecified.Whatwillhappeninthisscenario?(思科Catalyst交换机CAT1和CAT2有它们之间的连接使用端口FA0/13。两个交换机之间用802.1Q中继配置，CAT1做为VLAN10的主机，但在CAT2上的本地VLAN未指定。在这种情况下会发生什么？)A.802.1Qgiantsframescouldsaturatethelink.B.VLAN10onCAT1andVLAN1onCAT2willsenduntaggedframes.C.AnativeVLANmismatcherrormessagewillappear.D.VLAN10onCAT1andVLAN1onCAT2willsendtaggedframes.Answer:CSection:Chapter10:VLANExplanation/Reference:如果两边native不匹配的话.switch将报native不匹配的日志信息QUESTION4Whichcommandwouldcorrectlyconfigureaserialportonarouterwiththelastusablehostaddressinthe192.216.32.32/29subnet?（哪个命令正确地将最后的可用主机地址，192.216.32.32/29子网的路由器上配置的串行端口？）A.Router(config-if)#ipaddress192.216.32.38255.255.255.240B.Router(config-if)#ipaddress192.216.32.39255.255.255.224C.Router(config-if)#ipaddress192.216.32.63255.255.255.248D.Router(config-if)#ipaddress192.216.32.39255.255.255.248E.Router(config-if)#ipaddress192.216.32.63255.255.255.248F.Router(config-if)#ipaddress192.216.32.38255.255.255.248Answer:FSection:Chapter4:IntroductiontoCiscoIOSExplanation/Reference:192.216.32.32/29它的块大小为8掩码为255.255.255.248地址范围为192.216.32.32-39QUESTION5ThenetworkdefaultgatewayapplyingtoahostbyDHCPis192.168.5.33/28.WhichoptionisthevalidIPaddressofthishost?(应用到由DHCP主机的网络默认网关是192.168.5.33\/28。哪个选项是有效的主机IP地址？)A.192.168.5.55B.192.168.5.47C.192.168.5.40D.192.168.5.32E.192.168.5.14Answer:CSection:Chapter3:IPAddressingandVLSMExplanation/Reference:考点：考查VLSM192.168.5.33/28所在网段的范围是192.168.5.32--192.168.5.47/28A：超出范围B：广播地址C：正确D：网络号E：超出范围QUESTION6Whichtwoaddressescanbeassignedtoahostwithasubnetmaskof255.255.254.0?(Choosetwo.){哪两个地址可以分配给与子网掩码255.255.254.0的主机？}A.113.10.4.0B.186.54.3.0C.175.33.3.255D.26.35.2.255E.17.35.36.0Answer:BDSection:Chapter3:IPAddressingandVLSMExplanation/Reference:考点：考查VLSMA：网络号B/D：正确C：广播地址E：网络号QUESTION7Thenetworkadministratorhasaskedyoutocheckthestatusoftheworkstation'sIPstackbypingingtheloopbackaddress.Whichaddresswouldyoupingtoperformthistask?{网络管理员已要求您通过ping环回地址检查工作站的IP堆栈的状态。您要执行此任务将ping哪个地址？}A.10.1.1.1B.127.0.0.1C.192.168.0.1D.239.1.1.1Answer:BSection:Chapter3:IPAddressingandVLSMExplanation/Reference:考点：使用ping来检测主机的IP栈。ping127.0.0.1实现。QUESTION8WorkstationAhasbeenassignedanIPaddressof192.0.2.24/28.WorkstationBhasbeenassignedanIPaddressof192.0.2.100/28.Thetwoworkstationsareconnectedwithastraight-throughcable.Attemptstopingbetweenthehostsareunsuccessful.Whattwothingscanbedonetoallowcommunicationsbetweenthehosts?(Choosetwo.){A工作站已分配IP地址为192.0.2.24\/28。B工作站已分配IP地址为192.0.2.100\/28。两台工作站与直通电缆连接。在主机之间ping不成功。允许在主机之间的通信，可以做两件事情？（选择两个）。}A.Replacethestraight-throughcablewithacrossovercable.B.Changethesubnetmaskofthehoststo/25.C.Changethesubnetmaskofthehoststo/26.D.ChangetheaddressofWorkstationAto192.0.2.15.E.ChangetheaddressofWorkstationBto192.0.2.111.Answer:ABSection:Chapter3:IPAddressingandVLSMExplanation/Reference:考点：同构设备使用交叉线，两端的IP需要在同一个子网。A：使用交叉线替换现有的直通线。正确。B：修改掩码为25位，正确。C：修改掩码为26为，错误。不能使他们在同一个子网。D/E：错误，都不能使他们在同一个子网。QUESTION9YourISPhasgivenyoutheaddress223.5.14.6/29toassigntoyourrouter'sinterface.Theyhavealsogivenyouthedefaultgatewayaddressof223.5.14.7.Afteryouhaveconfiguredtheaddress,therouterisunabletopinganyremotedevices.Whatispreventingtherouterfrompingingremotedevices?(您的ISP给你要分配给您的路由器接口地址223.5.14.6\/29。他们还授予您是223.5.14.7的默认网关地址。您已配置了地址后，路由器是无法ping任何远程设备。什么在阻碍pinging远程设备的路由器？)A.Thedefaultgatewayisnotanaddressonthissubnet.B.Thedefaultgatewayisthebroadcastaddressforthissubnet.C.TheIPaddressisthebroadcastaddressforthissubnet.D.TheIPaddressisa