2011最新10月ccna题库word版400~500题

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1、QUESTION401WhichofthefollowingdescribestherolesofdevicesinaWAN?(Choosethree.)A.ACSU/DSUterminatesadigitallocalloopB.AmodemterminatesadigitallocalloopC.ACSU/DSUterminatesananaloglocalloopD.AmodemterminatesananaloglocalloopE.ArouteriscommonlyconsideredaDTEdeviceF.Arouteriscommonly

2、consideredaDCEdeviceQUESTION402HowshouldarouterthatisbeingusedinaFrameRelaynetworkbeconfiguredtoavoidsplithorizonissuesfrompreventingroutingupdates?A.Configureaseparatesub-interfaceforeachPVCwithauniqueDLCIandsubnetassignedtothesub-interfaceB.ConfigureeachFrameRelaycircuitasapoi

3、nt-to-pointlinetosupportmulticastandbroadcasttrafficC.Configuremanysub-interfacesonthesamesubnetD.Configureasinglesub-interfacetoestablishmultiplePVCconnectionstomultipleremoterouterInterfacesQUESTION403TheFrameRelaynetworkinthediagramisnotfunctioningproperly.Whatisthecauseofthe

4、problem?A.TheGallantrouterhasthewrongLMItypeconfiguredB.InverseARPisprovidingthewrongPVCinformationtotheGallantrouterC.TheS3interfaceoftheSteelerouterhasbeenconfiguredwiththeframe-relayencapsulationietfcommandD.Theframe-relaymapstatementintheAttallarouterforthePVCtoSteeleisnotco

5、rrectE.TheIPaddressontheserialinterfaceoftheAttallarouterisconfiguredincorrectlyQUESTION404AsaCCNAcandidate,youmusthaveafirmunderstandingoftheIPv6addressstructure.RefertoIPv6address,couldyoutellmehowmanybitsareincludedineachfiled?A.24B.4C.3D.16QUESTION405Refertotheexhibit.Howman

6、ybroadcastdomainsexistintheexhibitedtopology?A.oneB.twoC.threeD.fourE.fiveF.sixQUESTION406Refertotheexhibit.ThenetworkadministratorhascreatedanewVLANonSwitch1andaddedhostCandhostD.TheadministratorhasproperlyconfiguredswitchinterfacesFastEthernet0/13throughFastEthernet0/24tobemem

7、bersofthenewVLAN.However,afterthenetworkadministratorcompletedtheconfiguration,hostAcouldcommunicatewithhostB,buthostAcouldnotcommunicatewithhostCorhostD.Whichcommandsarerequiredtoresolvethisproblem?A.Router(config)#interfacefastethernet0/1.3Router(config-if)#encapsulationdot1q3

8、Router(config-if)#ipaddress192.168.3.1255.255.2