ccna考试题库401450.docx
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ccna考试题库401450
QUESTION401
WhichofthefollowingdescribestherolesofdevicesinaWAN?
(Choosethree.)
A.ACSU/DSUterminatesadigitallocalloop
B.Amodemterminatesadigitallocalloop
C.ACSU/DSUterminatesananaloglocalloop
D.Amodemterminatesananaloglocalloop
E.ArouteriscommonlyconsideredaDTEdevice
F.ArouteriscommonlyconsideredaDCEdevice
QUESTION402
HowshouldarouterthatisbeingusedinaFrameRelaynetworkbeconfiguredtoavoidsplithorizonissuesfrompreventingroutingupdates?
A.Configureaseparatesub-interfaceforeachPVCwithauniqueDLCIandsubnetassignedtothesub-interface
B.ConfigureeachFrameRelaycircuitasapoint-to-pointlinetosupportmulticastandbroadcasttraffic
C.Configuremanysub-interfacesonthesamesubnet
D.Configureasinglesub-interfacetoestablishmultiplePVCconnectionstomultipleremoterouterinterfaces
QUESTION403
TheFrameRelaynetworkinthediagramisnotfunctioningproperly.Whatisthecauseoftheproblem?
A.TheGallantrouterhasthewrongLMItypeconfigured
B.InverseARPisprovidingthewrongPVCinformationtotheGallantrouter
C.TheS3interfaceoftheSteelerouterhasbeenconfiguredwiththeframe-relayencapsulationietfcommand
D.Theframe-relaymapstatementintheAttallarouterforthePVCtoSteeleisnotcorrect
E.TheIPaddressontheserialinterfaceoftheAttallarouterisconfiguredincorrectly
QUESTION404
AsaCCNAcandidate,youmusthaveafirmunderstandingoftheIPv6addressstructure.RefertoIPv6address,couldyoutellmehowmanybitsareincludedineachfiled?
A.24
B.4
C.3
D.16
QUESTION405
Refertotheexhibit.Howmanybroadcastdomainsexistintheexhibitedtopology?
A.one
B.two
C.three
D.four
E.five
F.six
QUESTION406
Refertotheexhibit.
ThenetworkadministratorhascreatedanewVLANonSwitch1andaddedhostCandhostD.TheadministratorhasproperlyconfiguredswitchinterfacesFastEthernet0/13throughFastEthernet0/24tobemembersofthenewVLAN.However,afterthenetworkadministratorcompletedtheconfiguration,hostAcouldcommunicatewithhostB,buthostAcouldnotcommunicatewithhostCorhostD.Whichcommandsarerequiredtoresolvethisproblem?
A.Router(config)#interfacefastethernet0/1.3
Router(config-if)#encapsulationdot1q3
Router(config-if)#ipaddress192.168.3.1255.255.255.0
B.Router(config)#routerrip
Router(config-router)#network192.168.1.0
Router(config-router)#network192.168.2.0
Router(config-router)#network192.168.3.0
C.Switch1#vlandatabase
Switch1(vlan)#vtpv2-mode
Switch1(vlan)#vtpdomaincisco
Switch1(vlan)#vtpserver
D.Switch1(config)#interfacefastethernet0/1
Switch1(config-if)#switchportmodetrunk
Switch1(config-if)#switchporttrunkencapsulationisl
QUESTION407
Onanetworkofonedepartment,therearefourPCsconnectedtoaswitch,asshowninthefollowingfigure:
AftertheSwitch1restarts.HostA(thehostontheleft)sendsthefirstframetoHostC(thehostontheright).Whatthefirstthingshouldtheswitchdo?
A.Switch1willadd192.168.23.12totheswitchingtable.
B.Switch1willadd192.168.23.4totheswitchingtable.
C.Switch1willadd000A.8A47.E612totheswitchingtable.
D.Noneoftheabove
QUESTION408
Refertotheexhibit.ThenetworkadministratorisinacampusbuildingdistantfromBuildingB.WANRouterishostinganewlyinstalledWANlinkoninterfaceS0/0.ThenewlinkisnotfunctioningandtheadministratorneedstodetermineifthecorrectcablehasbeenattachedtotheS0/0interface.HowcantheadministratoraccuratelyverifythecorrectcabletypeonS0/0inthemostefficientmanner?
A.TelnettoWANRouterandexecutethecommandshowinterfacesS0/0
B.TelnettoWANRouterandexecutethecommandshowprocessesS0/0
C.TelnettoWANRouterandexecutethecommandshowrunning-configuration
D.TelnettoWANRouterandexecutethecommandshowcontrollerS0/0
E.PhysicallyexaminethecablebetweenWANRouterS0/0andtheDCE.
F.EstablishaconsolesessiononWANRouterandexecutethecommandshowinterfacesS0/0
QUESTION409
WhiletroubleshootingaconnectivityissuefromaPCyouobtainthefollowinginformation:
LocalPCIPaddress:
10.0.0.35/24
DefaultGateway:
10.0.0.1
RemoteSever:
10.5.75.250/24
YouthenconductthefollowingtestsfromthelocalPC:
Ping127.0.0.1–Successful
Ping10.0.0.35–Successful
Ping10.0.0.1–Unsuccessful
Ping10.5.75.250–Unsuccessful
Whatistheunderlyingcauseofthisproblem?
A.Aremotephysicallayerproblemexists.
B.ThehostNICisnotfunctioning.
C.TCP/IPhasnotbeencorrectlyinstalledonthehost.
D.Alocalphysicallayerproblemexists.
QUESTION410
AnetworkadministratoristroubleshootingtheOSPFconfigurat