CCIE题库

QUESTION1Inordertomaintainsecurity,withwhichhopcountareIPv6neighbordiscoverypacketssent?A.0B.1C.255D.256QUESTION2WhichcommandwilldefineaVRFwithname'CCIE'inIPv6?A.ipvrfCCIEB.ipv6vrfCCIEC.vrfdefinitionCCIED.ipv6vrfdefinitionCCIEQUESTION3ForwhichroutesdoesLDPadvertisealabelbinding?A.allroutesintheroutingtableB.onlytheIGPandBGProutesintheroutingtableC.onlytheBGProutesintheroutingtableD.onlytheIGProutesintheroutingtableTheroutinginsidetheVPNREDwillneverworkcorrectly.TheroutinginsidetheVPNREDcanbeenabledbyconfiguringvirtuallinksbetweenthePErouters.TheroutinginsidetheVPNREDcanbeenabledbyconfiguringarea0insidetheVRFonthePErouters.TheroutinginsidetheVPNREDwillworkwithoutanyspecialOSPFconfiguration.TheroutinginsidetheVPNREDwillworkifthePEroutershaveafullmeshofsham-linksconfiguredforVRFRED.A.B.C.D.E.QUESTION4WhichcommandcanbeusedonaPEroutertoconnecttoaCErouter(11.1.1.4)inVRFred?A.telnet11.1.1.4/vrf-sourceredB.telnet11.1.1.4source/vrfredC.telnet11.1.1.4/sourcevrfredD.telnet11.1.1.4/vrfredE.telnet11.1.1.4vrfredQUESTION5ThisisanMPLSVPNnetworkwithOSPFasthePE-CEroutingprotocol.Whichstatementiscorrect?QUESTION6WhichtwostatementsarecorrectaboutNonstopForwarding?(Choosetwo.)A.ItallowsthestandbyRPtotakecontrolofthedeviceafterahardwareorsoftwarefaultontheactiveRP.B.ItisaLayer3functionthatworkswithSSOtominimizetheamountoftimeanetworkisunavailabletousersfollowingaswitchover.C.ItissupportedbytheimplementationofEIGRP,OSPF,RIPv2,andBGPprotocols.Itsynchronizesstartupconfiguration,startupvariables,andrunningconfiguration.ThemainobjectiveofNSFistocontinueforwardingIPpacketsfollowingaswitchover.Layer2802.1wor802.1smustbeused,as802.1dcannotprocesstheLayer2changes.RoutingprotocoltuningparametersmustbethesameastheNSFparameters,orfailoverwillbeinconsistent.D.E.F.G.QUESTION7WhichthreefieldsareoptionalinanOSPFv3externalLSA?(Choosethree.)A.ForwardingAddressB.ExternalRouteC.ReferenceLink-StateIDD.OptionE.PrefixOptionsQUESTION8Onarouter,interfaceS0isrunningEIGRPv6,andinterfaceS1isrunningOSPFv3.AredistributioncommandisissuedunderOSPFv3,redistributeEIGRP1metric20underipv6routernospf1.Whatwillhappenafterapplyingthisredistributioncommand?A.AllroutesshowingupasDandDEXintheroutingtablewillberedistributedintoOSPFv3.B.AllroutesshowingupasD,DEX,andCintheroutingtablewillberedistributedintoOSPFv3.C.AllroutesshowingupasDandDEXintheroutingtableandtheS0interfacewillberedistributedintoOSPFv3.D.AllroutesshowingupasDintheroutingtablewillberedistributedintoOSPFv3.E.AllroutesshowingupasDEXintheroutingtablewillberedistributedintoOSPFv3.QUESTION9WhichtypeofdomainsisinterconnectedusingMulticastSourceDiscoveryProtocol?A.PIM-SMB.PIM-DMC.PIM-SSMD.DVMRPQUESTION11HowisRPFusedinmulticastrouting?A.topreventmulticastpacketsfromloopingB.topreventPIMpacketsfromloopingC.toinstructPIMwheretosenda(*,G)or(S,G)joinmessageD.topreventmulticastpacketsfromloopingandtoinstructPIMwheretosenda(*,G)or(S,G)joinmessageQUESTION12QUESTION13Whichinterface(s)willshowiprpf1.1.1.2indicateasRPFinterface(s)?AEthernet1/0BEthernet0/0CBothEthernet0/0andEthernet1/0DRPFwillfailQUESTION14Apartfrominterdomainmulticastrouting,whatelseisMSDPusedfor?ASourceSpecificMulticastandIGMPv2BAnnouncingmulticastsourcestoBGPspeakersCAnycastRPDIntradomainmulticastroutingQUESTION15WhichIGMPv2messagecontainsanon-zeroMaxResponseTime?AMembershipQueryBMembershipReportCMembershipDelayDBackwardCompatibleIGMPv1ReportMessageQUESTION16QUESTION10Whichtwomulticastaddressrangesareassignedassource-specificmulticastdestinationaddressesandarereservedforusebysource-specificapplicationsandprotocols?(Choosetwo.)A.232.0.0.0/8B.239.0.0.0/8C.232.0.0.0/4D.FF3x::/32E.FF2x::/32F.FF3x::/16WhichIGMPv2messageisdisplayedintheoutputofthepacketcapture?A.GeneralQueryB.MembershipReportC.MembershipQueryD.MembershipDelayQUESTION17WhatisPhantomRPusedfor?A.itisusedforloadbalancinginbidirectionalPIMB.itisusedforredundancyinbidirectionalPIMC.itisusedforredundancyinPIM-SMD.itisusedforloadbalancinginPIM-SMQUESTION19Whichtwostatementsarecorrect?(Choosetwo.)A.Thehexadecimalvalueofthenumberofpacketsthathittheaccesslistis0x723E6E12.B.Theaccesslisthasloggingenabled.C.Thepacketwasdiscarded.D.Thecommandipaccess-listlogginghash-generationisenabled.E.TheTelnetconnectionissuccessfullysetup.QUESTION20Whichstatementiscorrect?A.Thisconfigurationisnotvalid.B.ControlPlanePolicingisconfigured;howeveryoucannotdetermineonwhichinterfaceitisconfigured.C.NTPisnotconfiguredontherouter.D.Telnettrafficwillbedropped.QUESTION22QUESTION24Whatwouldbethesecurityriskwhenyouareusingtheaboveconfiguration?A.ThelocallyconfigureduserswouldoverridetheTACACS+securitypolicy.B.ItwouldbeimpossibletologintotherouteriftheTACACS+serverisdown.C.ThedefaultloginpolicywouldoverridetheTACACS+configuration.D.IftheTACACS+serverfailed,noauthenticationwouldberequired.QUESTION25WhichthreeprotocolsshouldbeexplicitlymanagedbyusingaCoPPpolicyonanInternetborderrouter?(Choosethree.)A.SMTPB.ICMPC.BGPD.SSHE.RTPF.BitTorrentG.VTPQUESTION27QUESTION23WhichtwostatementsaretrueaboutUnicastReversePathForwardingLooseMode?(Choos