CCNACCNPCCIE模拟试题Word下载.docx
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CCNACCNPCCIE模拟试题Word下载.docx
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a./38b./30c./27d./23e./18
4.howwouldyouconfigurearoutertoavoidsituationssuchassplithorizonissueshamperingroutingupdatesonaframerelaywork?
a.configureaseparatesub-interfaceforeachpvcwithauniquedlciandsubassignedtothesubinterface.b.configureeachframerelaycircuitasapoint-to-pointlinetosupportmulticastandbroadcasttraffic.c.configureonesub-interfacetodisperseintomultiplepvcconnectionstomultipleremoterouterinterfaces.d.configureasmanyaspossiblesub-interfacesonthesamesub.
5.withregardtoisdn,whichofthefollowingaretrue?
(chooseallthatapply.)
a.legacyddrcanuseportinformationtodefineinterestingtraffic.b.legacyddrcanconfiguremultipledialerconfigurationsonthesameinterface.c.legacyddrcanuseaclstodefineinterestingtraffic.d.hdlcorpppcanbeusedtoencapsulateisdndchannelinformation.e.thebriinterfacesonisdnrouterswithdialerprofilesconfiguredcannotbelongtomultipledialerpools.f.dialerprofilescannotuseaclstodefineinterestingtraffic.
6.whichofthefollowingisacharacteristicoflink-stateprotocols?
a.aworktopologychangegeneratesanupdatethatisbroadcasttoeveryrouteronthework.b.theperiodicroutingupdateintervalisslightlydifferentineachrouteronasub.c.eachroutercreatesaroutingtablethatonlyincludesitsdirectlyconnectedneighbors.d.link-stateprotocolssendroutingupdatesonlywhenthereisachangeintheworktopology.
7.whatisthetermassociatedwithsynchronizingtheroutingtablesafteratopologychangeours?
a.floodingb.broadcastingc.convergenced.summarization
8.whichofthefollowingmustbedeterminedfirstbytherouterinordertoroutethedata?
a.thedistancemetricofthedatab.thesourceaddressofthedatac.whichroutingprotocolisusedbythedatad.whethertheprotocolsuiteofthedataisactive
9.youareatechnicianatabc.abchasthesub/maskof172.29.100.0/26setasideforsmallremotelocations.eachlocationwillhave5ipdevicesconnectedtothework.whichvlsmmaskwillprovidetheminimumnumberofhostsyourequire?
a./27b./28c./29d./30e./31
10.youareatraineetechnicianatabc.yourinstructorshowsyouthefollowingroutesummarizationentry:
192.168.134.0/22yourinstructorwantstoknowhowmanyclasscaddressesarecontainedinthissummarization.whatwouldyourreplybe?
a.1b.2c.4d.8e.16
11.whichmandenablesanetherchannelbundleonacatalyst2900xlswitch?
a.portgroupb.setportchannelonc.portetherchannelenabled.setetherchannelportenable
12.whichtwostatementsaboutdynamicvlansaretrue?
(choosetwo)
a.eachswitchportisassignedtoaspecificvlan.b.dynamicvlansrequireavlanmembershippolicyserver.c.devicesareinthesamevlanregardlessofwhichporttheyattachto.d.dynamicvlanassignmentaremadethroughthemandinterface.
13.whichstatementiscorrectabout802.1qtrunking?
(selectallthatapply)
a.bothswitchesmustbeinthesamevtpdomain.b.theencapsulationtypeofbothendsofthetrunkdoesnothavetomatch.c.thenativevlanonbothendsofthetrunkmustbevlan1.d.802.1qtrunkingcanonlybeconfiguredonalayer2port.e.in802.1qtrunking,allvlanpacketsaretaggedonthetrunklink,exceptthenativevlan.
14.youneedtotakeadvantageoffastetherports.whichtwoactionsavoidconfigurationproblemsthatcausetheporttobeautomaticallydisabled?
a.allowsomeportsinachanneltobedisabled.b.configuretheportsinachannelasdynamicvlanports.c.configureallportsinachanneltooperateatthesamespeedandduplexmode.d.assignallportsinachanneltothesamevlanorconfigurethemastrunkports.
15.whatisthecauseofjitter?
a.variablequeuedelaysb.packetdropsc.transmittingtoomanysmallpacketsd.pression
16.regardingdhcp,dhcprelayanddhcpserveraremutuallyexclusive.
a.noneofthechoices.b.truec.falseonlyforcertainiosversiond.falsee.falseonlyforiosversionbelowv10
17.alapdaddressfieldcanbe1or2byteslong.
a.trueb.falsec.trueonlyintheusd.trueonlyinasiae.trueonlyineurope
18.whichofthefollowingarevalidfunctionsofthelockdtemodemattribute(chooseallthatapply)?
a.disableuart.b.enableuart.c.locksthedataspeedbetweentheputermotherboardandthers232port.d.locksthedataspeedbetweenthemodemandthedtedevice.
19.whichofthefollowingarenotthevalidtypesofatmaddresses(chooseallthatapply)?
a.db.gctc.bspd.icde.nsapf.aed
20.whichofthefollowingarenotthevalidtypesofx.25plppacketfields(chooseallthatapply)?
a.userdatab.lcic.gfid.ptie.noneofthechoices.
21.youareatechnicianatabc..yournewlyappointedabctraineewantstoknowwhatthesimilaritiesbetweentopologydiagramsandworkconfigurationtablesare.whatwouldyourreplybe?
a.bothsharefewponents.b.bothsharemanyofthesameponents.c.bothdefinephysicalmemoryponents.d.bothareusedfortroubleshooting.e.bothuselinesandsymbolstorepresentworkponents.
22.youareatechnicianatabc..yournewlyappointedabctraineewantstoknowwhatthedefaultactionfortheoutputofdebugandsystemerrormessagesis.whatwouldyourreplybe?
a.outputgoestotheremoteconsoleifloggingisoff.b.outputissenttotheconsoleterminal.c.errorloggingautomaticallyinvokesdebugoutputtothedesignatedtftpserver.d.outputconfigurationrequiresatftpservertowritefilese.outputiswrittentoasyslogserver.
23.youaretheworkadministratoratabc..abchasaswitchedwork.youwanttocontrolthedesignationofthespanning-treerootbridgeintheabcwork.whatshouldyoudo?
a.byenablinguplink-fastontheportsofthedesiredswitch.b.byloweringthebridgepriorityonthedesiredswitch.c.bysettingalowermacaddressonthedesignatedswitch.d.byraisingthebridgeidononeswitch.
24.youareatechnicianatabc.youreceiveareportfromseveralabcuserswhoplainthattheygetslowresponseswhensendingandreceivingemail,especiallywhenbrowsingtheinter.youinvestigatetheplaintbycheckingtheoutputofapingmandissuedfromherputerandfindthatitindicatesintermittedsuessandfailuresmessages,whenattemptingtocontacttheemailserver.atracerttothecorporateintergatewayroutershowshighlatencyandoasionaltimeoutmessages.whatwouldbethemosteffectivetroubleshootingapproachifyouaretodeterminethecauseoftheslowresponsetime?
a.bottom-upapproachb.randomaessapproachc.divideandconquerapproachd.top-downapproache.top-downrule-outapproach
25.youareatechnicianatabc..yournewlyappointedabctraineewantstoknowwhatfeaturesmakeospfmoresuitablethanrpinlargeworkinstallations.whatwouldyourreplybe?
a.diffusingupdatealgorithmb.nohopcountlimitationc.higherroutingupdateoverheadd.fasterconvergencee.lowerroutingupdateoverhead
26.youaretheworkadministratoratabc.youaretroubleshootingaworkproblem.youwanttotracetheroutetoaunixworkstationthatyouwanttoreachthroughtheinter.however,traceroutedoesnotwork.currently,thereisaninboundaess-listappliedtotheserialinterfaceonrouter1.anentryintheaess-liststates"
aess-list101permittcpanyany"
.whataess-listentrymayyouneedtobeaddedtotheaess-listinordertogettraceroutetowork?
a.aess-list101permitudpanyanyb.aess-list101permiticmpanyanytime-exceededaess-list101permiticmpanyanyport-unreachablec.aess-list101permiticmpanyanytime-exceededaess-list101permiticmpanyany-unreachabled.aess-list101permiticmpanyanyechoaess-list101permiticmpanyany-unreachablee.aess-list101permitudpanyanyaess-list101permiticmpanyanyprotocol-unreachable
27.whatdoesthebgpbackdoormanddo?
a.itchangesthedistanceofanibgprouteto20.b.itchangesthedistanceofanebgprouteto200.c.itchangesthedistanceofanigprouteto20.d.itdoesnoteffectanychangesindistanceoftheroute.e.itchangesthedistanceofanigrprouteto200.
28.whichofthefollowingdnsresourcerecordsisnotvalid?
a.nsb.ptrc.mxd.fqdne.a
29.whichofthefollowingfeaturesisprovidedbyripv2thatwerepreviouslynotpossiblewithripv1?
a.classlessroutingandsplit-horizon.b.poisonreverseandupdatingtomulticastaddresses.c.poisonreverseandclasslessrouting.d.classlessroutingandupdatingtomulticastaddresses.e.routetagandclasslessrouting.
30.whichofthefollowingstatementsisvalidwhentakingcustomqueuingintoaount?
a.customqueuinghastheabilitytorestrictaparticulartypeoftraffictoagivenbandwidthnotmatterwhatisloadislikeonthatlink.b.customqueuinglooksatgroupsofpacketsfromthesimilarsource-destinationpairs.c.customqueuingwillnotproceedtoanextqueueunlessthecurrentqueueisempty.d.customqueuingcanpreventonetypeoftrafficfromdominatingabusylink.
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