CISCO 真题Word文档下载推荐.docx

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