51CTO下载CCNA 640802 V14 题库151175Word格式.docx
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51CTO下载CCNA 640802 V14 题库151175Word格式.docx
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A
153.Refertotheexhibit.Anewsubnetwith12hostshasbeenaddedtothenetwork.Whichsubnetaddressshouldthisnetworkusetoprovideenoughuseableaddresseswhilewastingthefewestaddresses?
A.192.168.10.80/28
B.192.168.10.80/29
C.192.168.10.96/28
D.192.168.10.96/29
C
154.AnaccesslisthasbeendesignedtopreventHTTPtrafficfromtheAccountingDepartmentfromreachingtheHRserverattachedtotheHolyokerouter.Whichofthefollowingaccesslistswillaccomplishthistaskwhengroupedwiththee0interfaceontheChicopeerouter?
A.permitipanyanydenytcp172.16.16.00.0.0.255172.17.17.2520.0.0.0eq80
B.permitipanyanydenytcp172.17.17.2520.0.0.0172.16.16.00.0.0.255eq80
C.denytcp172.17.17.2520.0.0.0172.16.16.00.0.0.255eq80permitipanyany
D.denytcp172.16.16.00.0.0.255172.17.17.2520.0.0.0eq80permitipanyany
D
155.WhatisonereasonthatWPAencryptionispreferredoverWEP?
A.AWPAkeyislongerandrequiresmorespecialcharactersthantheWEPkey.
B.TheaccesspointandtheclientaremanuallyconfiguredwithdifferentWPAkeyvalues.
C.WPAkeyvaluesremainthesameuntiltheclientconfigurationischanged.
D.ThevaluesofWPAkeyscanchangedynamicallywhilethesystemisused.
156.Refertotheexhibit.ThenetworkadministratormustcompletetheconnectionbetweentheRTAoftheXYZCompanyandtheserviceprovider.Toaccomplishthistask,whichtwodevicescouldbeinstalledatthecustomersitetoprovideaconnectionthroughthelocallooptothecentralofficeoftheprovider?
(Choosetwo.)
A.WANswitch
B.PVC
C.ATMswitch
D.multiplexer
E.CSU/DSU
F.modem
EF
157.WhenarouterisconnectedtoaFrameRelayWANlinkusingaserialDTEinterface,howistheinterfaceclockratedetermined?
A.ItissuppliedbytheCSU/DSU.
B.Itissuppliedbythefarendrouter.
C.Itisdeterminedbytheclockratecommand.
D.ItissuppliedbytheLayer1bitstreamtiming.
158.WhenanewtrunklinkisconfiguredonanIOSbasedswitch,whichVLANsareallowedoverthelink?
A.Bydefault,alldefinedVLANsareallowedonthetrunk.
B.EachsingleVLAN,orVLANrange,mustbespecifiedwiththeswitchportmodecommand.
C.EachsingleVLAN,orVLANrange,mustbespecifiedwiththevtpdomaincommand.
D.EachsingleVLAN,orVLANrange,mustbespecifiedwiththevlandatabasecommand.
159.Acknowledgements,sequencing,andflowcontrolarecharacteristicsofwhichOSIlayer?
A.Layer2
B.Layer3
C.Layer4
D.Layer5
E.Layer6
F.Layer7
160.Whichofthefollowingaretypesofflowcontrol?
(Choosethree.)
A.buffering
B.cut-through
C.windowing
D.congestionavoidance
E.loadbalancing
ACD
161.WhichprotocolprovidesamethodofsharingVLANconfigurationinformationbetweenswitches?
A.VTP
B.STP
C.ISL
D.802.1Q
E.VLSM
162.Refertotheexhibit.HowwillrouterAchooseapathtothe10.1.2.0/24networkwhendifferentroutingprotocolsareconfigured?
A.IfRIPv2istheroutingprotocol,onlythepathADwillbeinstalledintheroutingtablebydefault.
B.IfRIPv2istheroutingprotocol,theequalcostpathsABDandACDwillbeinstalledintheroutingtablebydefault.
C.IfEIGRPistheroutingprotocol,onlythepathADwillbeinstalledintheroutingtablebydefault.
D.IfEIGRPistheroutingprotocol,theequalcostpathsABDandACDwillbeinstalledintheroutingtablebydefault.
E.IfEIGRPandOSPFarebothrunningonthenetwork,theEIGRPpathswillbeinstalledintheroutingtable.
F.IfEIGRPandOSPFarebothrunningonthenetwork,theOSPFpathswillbeinstalledintheroutingtable.
ADE
163.Whichtwodevicescaninterferewiththeoperationofawirelessnetworkbecausetheyoperateonsimilarfrequencies?
(Choosetwo.)
A.copier
B.microwaveoven
C.toaster
D.cordlessphone
E.IPphone
F.AMradio
BD
164.Refertotheexhibit.WhydoesRouterAshowmultipleunequalcostpathstonetwork192.168.81.0/24?
A.AvariancewasconfiguredforEIGRPautonomoussystem109.
B.TheEIGRPtopologytabledisplaysallroutestoadestination.
C.TheEIGRPtopologytableshowsonlybackuproutestoadestination.
D.Multiplefloatingstaticrouteswereconfiguredtonetwork192.168.81.0viainterfaceSerial0.
B
165.Whichstatementistrueaboutfull-duplexEthernetincomparisontohalf-duplexEthernet?
A.Full-duplexEthernetconsistsofasharedcablesegment.Half-duplexEthernetprovidesapoint-to-pointlink.
B.Full-duplexEthernetusesaloopbackcircuittodetectcollisions.Half-duplexEthernetusesajamsignal.
C.Full-duplexEthernetcanprovidehigherthroughputthancanhalf-duplexEthernetofthesamebandwidth.
D.Full-duplexEthernetusestwowirestosendandreceive.Half-duplexEthernetusesonewiretosendandreceive.
166.WhicharevalidmodesforaswitchportusedasaVLANtrunk?
A.transparent
B.auto
C.on
D.desirable
E.blocking
F.forwarding
BCD
167.Refertotheexhibit.Aproblemwithnetworkconnectivityhasbeenobserved.ItissuspectedthatthecableconnectedtoswitchportFa0/9onSwitch1isdisconnected.Whatwouldbeaneffectofthiscablebeingdisconnected?
A.HostBwouldnotbeabletoaccesstheserverinVLAN9untilthecableisreconnected.
B.CommunicationbetweenVLAN3andtheotherVLANswouldbedisabled.
C.ThetransferoffilesfromHostBtotheserverinVLAN9wouldbesignificantlyslower.
D.Forlessthanaminute,HostBwouldnotbeabletoaccesstheserverinVLAN9.Thennormalnetwork
functionwouldresume.
168.Refertothegraphic.Howmanycollisiondomainsareshown?
A.one
B.two
C.three
D.four
E.six
F.fourteen
169.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
170.Refertotheexhibit.ForwhattworeasonshastherouterloadeditsIOSimagefromthelocationthatisshown?
A.Router1hasspecificbootsystemcommandsthatinstructittoloadIOSfromaTFTPserver.
B.Router1isactingasaTFTPserverforotherrouters.
C.Router1cannotlocateavalidIOSimageinflashmemory.
D.Router1defaultedtoROMMONmodeandloadedtheIOSimagefromaTFTPserver.
E.CiscorouterswillfirstattempttoloadanimagefromTFTPformanagementpurposes.
AC
171.Refertotheexhibit.Atechnicianistroubleshootingahostconnectivityproblem.ThehostisunabletopingaserverconnectedtoSwitch_A.Basedontheresultsofthetesting,whatcouldbetheproblem?
A.Aremotephysicallayerproblemexists.
B.ThehostNICisnotfunctioning.
C.TCP/IPhasnotbeencorrectlyinstalledonthehost.
D.Alocalphysicallayerproblemexists.
172.Aroutingprotocolisrequiredthatsupports:
1)routingupdateauthentication
2)anaddressingschemethatconservesIPaddresses
3)multiplevendors
4)anetworkwithover50routers
Whichroutingprotocolfulfillstheserequirements?
A.RIPv1
B.RIPv2
C.EIGRP
D.OSPF
173.Refertotheexhibit.WhatisthecorrectaddressingforaframeandpacketreceivedbyHostBfromHostA?
A.DestinationMAC:
0011.43da.2c98
SourceMAC:
0070.0e8f.088a
DestinationIP:
192.168.60.5
SourceIP:
192.168.24.5
B.DestinationMAC:
00b0.d0ef.5f6a
C.DestinationMAC:
192.168.60.1
D.DestinationMAC:
0070.0e97.af4e
192.168.60.2
174.Refertotheexhibit.ThenetworkadministratorhasverifiedthatafunctioningcableconnectsSwitch1andSwitch2.Fromtheoutputthatisshown,whattwopiecesofinformationcantheadministratorvalidlyconclude?
A.UsingasourceMACaddressof0009.11f3.8848,Switch2issendingframestoSwitch1.
B.Interfacefa0/1onSwitch1
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