CISCO 真题Word文档下载推荐.docx
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CISCO 真题Word文档下载推荐.docx
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A./38
B./30
C./27
D./23
E./18
4.HowwouldyouconfigurearoutertoavoidsituationssuchassplithorizonissueshamperingroutingupdatesonaFrameRelaynetwork?
A.Configureaseparatesub-interfaceforeachPVCwithauniqueDLCIandsubnetassignedtothesubinterface.
B.ConfigureeachFrameRelaycircuitasapoint-to-pointlinetosupportmulticastandbroadcasttraffic.
C.Configureonesub-interfacetodisperseintomultiplePVCconnectionstomultipleremoterouterinterfaces.
D.Configureasmanyaspossiblesub-interfacesonthesamesubnet.
5.WithregardtoISDN,whichofthefollowingaretrue?
(Chooseallthatapply.)
A.LegacyDDRcanuseportinformationtodefineinterestingtraffic.
B.LegacyDDRcanconfiguremultipledialerconfigurationsonthesameinterface.
C.LegacyDDRcanuseACLstodefineinterestingtraffic.
D.HDLCorPPPcanbeusedtoencapsulateISDNDchannelinformation.
E.TheBRIinterfacesonISDNrouterswithdialerprofilesconfiguredcannotbelongtomultipledialerpools.
F.DialerprofilescannotuseACLstodefineinterestingtraffic.
CCNP
-BSCI
6.Whichofthefollowingisacharacteristicoflink-stateprotocols?
A.Anetworktopologychangegeneratesanupdatethatisbroadcasttoeveryrouteron
thenetwork.
B.Theperiodicroutingupdateintervalisslightlydifferentineachrouteronasubnet.
C.Eachroutercreatesaroutingtablethatonlyincludesitsdirectlyconnectedneighbors.
D.Link-stateprotocolssendroutingupdatesonlywhenthereisachangeinthenetwork
topology.
7.Whatisthetermassociatedwithsynchronizingtheroutingtablesafteratopologychangeoccurs?
A.flooding
B.broadcasting
C.convergence
D.summarization
8.Whichofthefollowingmustbedeterminedfirstbytherouterinordertoroutethedata?
A.thedistancemetricofthedata
B.thesourceaddressofthedata
C.whichroutingprotocolisusedbythedata
D.whethertheprotocolsuiteofthedataisactive
9.YouareatechnicianatABC.ABChasthesubnet/maskof172.29.100.0/26setasideforsmallremotelocations.Eachlocationwillhave5IPdevicesconnectedtothenetwork.WhichVLSMmaskwillprovidetheminimumnumberofhostsyourequire?
A./27
B./28
C./29
D./30
E./31
10.YouareatraineetechnicianatABC.Yourinstructorshowsyouthefollowingroutesummarizationentry:
192.168.134.0/22YourinstructorwantstoknowhowmanyclassCaddressesarecontainedinthissummarization.Whatwouldyourreplybe?
A.1
B.2
C.4
D.8
E.16
-BCMSN
11.WhichcommandenablesanEtherChannelbundleonaCatalyst2900XLswitch?
A.Portgroup
B.Setportchannelon
C.Portetherchannelenable
D.Setetherchannelportenable
12.WhichtwostatementsaboutdynamicVLANsaretrue?
(Choosetwo)
A.EachswitchportisassignedtoaspecificVLAN.
B.DynamicVLANsrequireaVLANMembershipPolicyServer.
C.DevicesareinthesameVLANregardlessofwhichporttheyattachto.
D.DynamicVLANassignmentaremadethroughthecommandinterface.
13.Whichstatementiscorrectabout802.1Qtrunking?
(Selectallthatapply)
A.BothswitchesmustbeinthesameVTPdomain.
B.Theencapsulationtypeofbothendsofthetrunkdoesnothavetomatch.
C.ThenativeVLANonbothendsofthetrunkmustbeVLAN1.
D.802.1QtrunkingcanonlybeconfiguredonaLayer2port.
E.In802.1Qtrunking,allVLANpacketsaretaggedonthetrunklink,exceptthenativeVLAN.
14.YouneedtotakeadvantageofFastEthernetports.Whichtwoactionsavoidconfigurationproblemsthatcausetheporttobeautomaticallydisabled?
A.Allowsomeportsinachanneltobedisabled.
B.ConfiguretheportsinachannelasdynamicVLANports.
C.Configureallportsinachanneltooperateatthesamespeedandduplexmode.
D.AssignallportsinachanneltothesameVLANorconfigurethemastrunkports.
15.Whatisthecauseofjitter?
A.Variablequeuedelays
B.Packetdrops
C.Transmittingtoomanysmallpackets
D.Compression
-BCRAN
16.RegardingDHCP,DHCPrelayandDHCPserveraremutuallyexclusive.
A.Noneofthechoices.
B.True
C.FalseonlyforcertainIOSversion
D.False
E.FalseonlyforIOSversionbelowV10
17.ALAPDAddressfieldcanbe1or2byteslong.
A.True
B.False
C.TrueonlyintheUS
D.TrueonlyinAsia
E.TrueonlyinEurope
18.WhichofthefollowingarevalidfunctionsofthelockDTEmodemattribute(Chooseallthatapply)?
A.DisableUART.
B.EnableUART.
C.LocksthedataspeedbetweenthecomputermotherboardandtheRS232port.
D.LocksthedataspeedbetweenthemodemandtheDTEdevice.
19.WhichofthefollowingarenotthevalidtypesofATMaddresses(Chooseallthatapply)?
A.DCC
B.GCT
C.BSP
D.ICD
E.NSAP
F.AED
20.WhichofthefollowingareNOTthevalidtypesofX.25PLPpacketfields(Chooseallthatapply)?
A.UserData
B.LCI
C.GFI
D.PTI
E.Noneofthechoices.
-CIT
21.YouareatechnicianatABC.com.YournewlyappointedABCtraineewantstoknowwhatthesimilaritiesbetweenTopologyDiagramsandNetworkConfigurationTablesare.
Whatwouldyourreplybe?
A.Bothsharefewcomponents.
B.Bothsharemanyofthesamecomponents.
C.Bothdefinephysicalmemorycomponents.
D.Bothareusedfortroubleshooting.
E.Bothuselinesandsymbolstorepresentnetworkcomponents.
22.YouareatechnicianatABC.com.YournewlyappointedABCtraineewantstoknowwhatthedefaultactionfortheoutputofdebugandsystemerrormessagesis.Whatwouldyourreplybe?
A.Outputgoestotheremoteconsoleifloggingisoff.
B.Outputissenttotheconsoleterminal.
C.ErrorloggingautomaticallyinvokesdebugoutputtothedesignatedTFTPserver.
D.OutputconfigurationrequiresaTFTPservertowritefiles
E.OutputiswrittentoaSyslogserver.
23.YouarethenetworkadministratoratABC.com.ABChasaswitchednetwork.Youwanttocontrolthedesignationofthespanning-treerootbridgeintheABCnetwork.Whatshouldyoudo?
A.Byenablinguplink-fastontheportsofthedesiredswitch.
B.Byloweringthebridgepriorityonthedesiredswitch.
C.BysettingalowerMACaddressonthedesignatedswitch.
D.ByraisingthebridgeIDononeswitch.
24.YouareatechnicianatABC.YoureceiveareportfromseveralABCuserswhocomplainthattheygetslowresponseswhensendingandreceivingemail,especiallywhenbrowsingtheInternet.Youinvestigatethecomplaintbycheckingtheoutputofapingcommandissuedfromhercomputerandfindthatitindicatesintermittedsuccessandfailuresmessages,whenattemptingtocontacttheemailserver.AtracerttothecorporateInternetgatewayroutershowshighlatencyandoccasionaltimeoutmessages.
Whatwouldbethemosteffectivetroubleshootingapproachifyouaretodeterminethecauseoftheslowresponsetime?
A.Bottom-upapproach
B.Randomaccessapproach
C.Divideandconquerapproach
D.Top-downapproach
E.Top-downrule-outapproach
25.YouareatechnicianatABC.com.YournewlyappointedABCtraineewantstoknowwhatfeaturesmakeOSPFmoresuitablethanRPinlargenetworkinstallations.Whatwouldyourreplybe?
A.DiffusingUpdateAlgorithm
B.Nohopcountlimitation
C.Higherroutingupdateoverhead
D.Fasterconvergence
E.Lowerroutingupdateoverhead
CCIE
26.YouarethenetworkadministratoratABC.Youaretroubleshootinganetworkproblem.YouwanttotracetheroutetoaUnixworkstationthatyouwanttoreachthroughtheInternet.However,Traceroutedoesnotwork.
Currently,thereisaninboundaccess-listappliedtotheserialinterfaceonRouter1.Anentryintheaccess-liststates"
access-list101permittcpanyany"
.Whataccess-listentrymayyouneedtobeaddedtotheaccess-listinordertogettraceroutetowork?
A.access-list101permitudpanyany
B.access-list101permiticmpanyanytime-exceededaccess-list101permiticmpanyanyport-unreachable
C.access-list101permiticmpanyanytime-exceededaccess-list101permiticmpanyanynet-unreachable
D.access-list101permiticmpanyanyechoaccess-list101permiticmpanyanynet-unreachable
E.access-list101permitudpanyanyaccess-list101permiticmpanyanyprotocol-unreachable
27.WhatdoestheBGPbackdoorcommanddo?
A.ItchangesthedistanceofaniBGProuteto20.
B.ItchangesthedistanceofaneBGProuteto200.
C.ItchangesthedistanceofanIGProuteto20.
D.Itdoesnoteffectanychangesindistanceoftheroute.
E.ItchangesthedistanceofanIGRProuteto200.
28.WhichofthefollowingDNSresourcerecordsisnotvalid?
A.NS
B.PTR
C.MX
D.FQDN
E.A
29.WhichofthefollowingfeaturesisprovidedbyRIPv2thatwerepreviouslynotpossiblewithRIPv1?
A.Classlessroutingandsplit-horizon.
B.Poisonreverseandupdatingtomulticastaddresses.
C.Poisonreverseandclasslessrouting.
D.Classlessroutingandupdatingtomulticastaddresses.
E.Routetagandclasslessrouting.
30.Whichofthefollowingstatements
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