2024年計算機(jī)考試-juniper認(rèn)證筆試參考題庫含答案

“人人文庫”水印下載源文件后可一鍵去除，請放心下載！（圖片大小可任意調(diào)節(jié)）2024年計算機(jī)考試-juniper認(rèn)證筆試參考題庫含答案“人人文庫”水印下載源文件后可一鍵去除，請放心下載！第1卷一.參考題庫(共75題)1.AnIPv6hostisconfiguredtorequestaspecificpaththroughthenetworktoreachadestination.WhichIPv6extensionheadershouldbeused?（）A、RoutingB、Hop-by-HopC、FragmentationD、DestinationOptions2.WhatisthedefaultQualityofServicetrafficclassusedbytheERXEdgeRouter?（）A、bronzeforwardingB、assuredforwardingC、expeditedforwardingD、besteffortforwarding3.Which?two?forwarding?classes?have?bandwidth?assigned?when?CoS?is?not?explicitly?configured?in?JUNOS?software？（）A、Best?effort（BE）B、Network?control（NC）C、Assured?forwarding（AF）D、Expedited?forwarding（EF）4.WhichCLIcommanddisplaystheIS-ISlevelusedbyeachinterface?（）A、showclnsneighborB、showisisneighborC、showclnsinterfaceD、showisisinterface5.Whataretwopurposesofaforwardingclass?（）A、toidentifytrafficthatshouldbedroppedB、toclassifytrafficC、toidentifytrafficthatshouldreceivecommontreatmentD、toassigntraffictooutputqueues6.Whichstatementdescribesanadvantageofdynamicrouting?（）A、Dynamicroutingistypicallymorescalablewhencomparedtostaticrouting.B、Unlikestaticrouting,dynamicroutingrequiresnoinitialuserconfiguration.C、Unlikestaticrouting,dynamicroutingprovidesredundantIPaddressesforend-userdevices.D、DynamicroutingprovidesDNSservicesalongwithIPconnectivity,whereasstaticroutingdoesnot.7.Youhaveafirewallenforcerprotectingresourcesinadatacenter.Auserisexperiencingdifficultyconnectingtoaprotectedresource.Whichtwoelementsmustexistsotheusercanaccesstheresource?（）A、ResourceaccesspolicyontheMAGSeriesdeviceB、IPsecroutingpolicyontheMAGSeriesdeviceC、GeneraltrafficpolicyblockingaccessthroughthefirewallenforcerD、Authtableentryonthefirewallenforcer8.Which?two?statements?about?the?use?of?SCREEN?options?are?correct？（）A、SCREEN?options?are?deployed?at?the?ingress?and?egress?sides?of?a?packet?flow.B、Although?SCREEN?options?are?very?useful，?their?use?can?result?in?more?session?creation.C、SCREEN?options?offer?protection?against?various?attacks?at?the?ingress?zone?of?a?packet?flow.D、SCREEN?options?examine?traffic?prior?to?policy?processing，?thereby?resulting?in?fewer?resouces?used?formalicious?packet?processing.9.Which?statement?describes?the?behavior?of?a?security?policy？（）A、The?implicit?default?security?policy?permits?all?traffic.B、Traffic?destined?to?the?device?itself?always?requires?a?security?policy.C、Traffic?destined?to?the?device’s?incoming?interface?does?not?require?a?security?policy.D、The?factory-default?configuration?permits?all?traffic?from?all?interfaces.10.Which?action?occurs?when?the?BGP?route?/16?is?evaluated?by?the?policy?expression？（） [editpolicy-options]? policy-statementmy-filter?{? term-first{? from{? route-filter/16orlongeraccept；? route-filter?/24?exact?accept；? route-filter?/24?exact；? }? then{? metric10；? accept；? }? termsecond?{? then{? metric20；? accept；? }}? policy-statementmain?{? termchange-attributes? from{? policymy-filter；? }? thenaccept；? }? termdefault?{? thenreject；? }}? [editprotocols]? bgp{? exportmain；? }A、The?route?is?not?advertised?into?BGPB、The?route?is?advertised?into?BGP?with?metric?10.C、The?route?is?advertised?into?BGP?with?metric?20.D、The?route?is?advertised?into?BGP?with?default?metric.11.WheredoesLayer2de-encapsulationoccurontheERXEdgeRouter？（）A、ontheSRPB、ontheI/OadapterC、ontheegresslinemoduleD、ontheingresslinemodule12.Bydefaultifequal-costpathsexistsforthesamedestination,whichactionwilltheroutertake?（）A、DrophalfthetrafficB、MakeacopyofthetrafficandsendittobothtestinationsC、Load-balancetrafficbetweentheavailablepathsD、Randomlyselectoneoftheavailablepathstosendtraffic13.Which?two?statements?are?true?regarding?proxy?ARP？（）A、Proxy?ARP?is?enabled?by?default.B、Proxy?ARP?is?not?enabled?by?default.C、JUNOS?security?devices?can?forward?ARP?requests?to?a?remote?device?when?proxy?ARP?is?enabled.D、JUNOS?security?devices?can?reply?to?ARP?requests?intended?for?a?remote?device?when?proxy?ARP?isenabled14.WhichconfigurationcommandpreventsaclientfromestablishingmultiplePPPoEconnectionsfromasingleworkstation?（）A、sessionsB、sa-validateC、split-horizonD、duplicate-protection15.Whatinformationdoesthehelpreferencecommandprovide?（）A、abriefdescriptionofcommandsandtheirdefaultvaluesB、theserialnumberandversionnumberofthedeviceusedtoopenasupportcasewithJTACC、alistofalltheactivehardwarealarmsonthedeviceD、adisplayofthecurrentconfigurationwhileinoperationalmode16.WhatisamethodbywhichanIPinterfacecanbeassignedtoavirtualrouterinaPPPoverATMenvironment？（）A、profileB、policylistC、classifierACLD、LCPnegotiation17.WhichstatementistrueaboutroutingtablesonaJunosdevice?（）A、Theypurgeanyroutesnotselectedasactiveroutes.B、Theyexistintwoplaces:theRoutingEngineandthePacketForwardingEngine.C、Theyareexclusivelydesignedtohandledynamicroutingprotocols.D、Theypopulatetheforwardingtable.18.YouwanttolimitthenumberofType7LSAstobeconvertedintoType5LSAsatanappropriateABR.Whichtwocommandsshouldyouusefromthe[edit]hierarchylevelwithinJUNOSconfigurationmode?（）A、setprotocolsospfarea-rangenetwork/mask-lengthB、setprotocolsospfareaarea-idnssaarea-rangenetwork/mask-lengthC、setprotocolsospfareaarea-idarea-rangenetwork/mask-lengthrestrictD、setprotocolsospfareaarea-idnssaarea-rangenetwork/mask-lengthrestrict19.Given?the?following?LSP?configuration，?which?statement?is?true？（） label-switched-pathlsp-xyz?{? to?10.2000.1.1；? primarypath1；? secondarypath2；? secondarypath3；? no-cspf；? }? pathpath1?{? ?strict；? }? pathpath2?{? ?strict；? }? pathpath3?{? loose? }A、The?router?will?use?path1?when?it?is?available?and?stable.B、The?router?will?use?path3?when?it?is?available?and?stable.C、The?router?will?attempt?to?establish?path2?only?when?path1?and?path3?are?down.D、The?router?will?attempt?to?establish?path1?only?when?path2?and?path3?are?down.20.WhataretwousecasesenabledbyIF-MAPFederation?（）A、UsersauthenticatedtooneJunosPulseAccessControlServicecantransparentlyaccessresourcesprotectedbyanotherJunosPulseAccessControlService.B、UsersauthenticatedtoaJunosPulseAccessControlServicecantransparentlyaccessresourcesprotectedbyaJunosPulseSecureAccessService.C、RemoteaccessusersauthenticatedtoaJunosPulseSecureAccessServicecantransparentlyaccessresourcesprotectedbyaJunosPulseAccessControlService.D、RemoteaccessusersauthenticatedtooneJunosPulseSecureAccessServicecantransparentlyaccessresourcesprotectedbyanotherJunosPulseSecureAccessService.21.Which?CLI?command?is?used?to?set?a?Privileged?Exec?password?of?mypassword？（）A、?enable?password?0?mypasswordB、?enable?password?3?mypasswordC、?enable?password?5?mypasswordD、?enable?password?10?mypassword22.Whichtwomediatypessupportasynchronoustransfermode?（）A、T3B、SONETC、Gigabit-EthernetD、EIA/TIA-232serial23.You?are?implementing?an?IDP?policy?template?from?Juniper?Networks.?Which?three?steps?are?included?in?thisprocess？（）A、activating?a?JUNOS?Software?commit?scriptB、configuring?an?IDP?groups?statementC、setting?up?a?chassis?clusterD、downloading?the?IDP?policy?templatesE、installing?the?policy?templates24.Whichtwostatementsaretrueofanetworkmask?（）A、AsubnetmaskspecifiestheportionofanIPaddressthatisinabinaryformat.B、AsubnetmaskspecifiestheportionofanIPaddressthatisinadecimalformat.C、AsubnetmaskspecifiestheportionofanIPaddressthatrepresentsanetworkprefix.D、AsubnetmaskspecifiestheportionofanIPaddressthatrepresentsnetworkhosts.25.Whensupportingmultipleauthenticationdomains,thedomainmapmustbeconfiguredwithwhichtwooptions?（）A、hostnameB、staticrouteC、virtualrouterD、loopbackreference26.YouhaveconfiguredtheOdysseyAccessClientwithaprofilewhichhasthe"DisableServerVerification"settingcleared.WhatwillbetheresultifthedevicecertificateontheMAGSeriesdevicehasexpiredandtheuserattemptstoauthenticate?（）A、Theuserwillbeinstructedtocallthenetworkadministrator.B、Theuserwillfailauthentication.C、TheuserwillbepromptedtoinstallanewdevicecertificateontheMAGSeriesdevice.D、Theuserwillsuccessfullyauthenticateandhavefullnetworkaccess.27.Youhavebeenallocateda/22network.Howmanyusablehostareavailable?（）A、510B、512C、1022D、102428.Whatdoesthecommandshowcomparerollback1display?（）A、thedifferencebetweenthecurrentcandidateconfigurationandthecandidateconfigurationfromonecommitagoB、thedifferencebetweenthecurrentactiveconfigurationandthecurrentcandidateconfigurationC、thedifferencebetweenthecurrentactiveconfigurationandtheactiveconfigurationfromonecommitagoD、thedifferencebetweenthecurrentcandidateconfigurationandthearchivedconfigurationfromonecommitago29.In?the?configuration?shown?in?the?exhibit，?you?decided?to?eliminate?the?junos-ftp?applicationfrom?the?match?condition?of?the?policy?MyTraffic. [edit?security?policies] user@hostl#?show from-zone?Private?to-zone?External?{ policy?MyTraffic?{ match?{ source-address?myHosts； destination-address?ExtServers； application?[?junos-ftp?junos-bgp?]； } then?{ permit?{ tunnel?{ ipsec-vpn?vpnTunnel； } } } } } policy-rematch； What?will?happen?to?the?existing?FTP?and?BGP?sessions？（）A、The?existing?FTP?and?BGP?sessions?will?continue.B、The?existing?FTP?and?BGP?sessions?will?be?re-evaluated?and?only?FTP?sessions?will?be?dropped.C、The?existing?FTP?and?BGP?sessions?will?be?re-evaluated?and?all?sessions?will?be?dropped.D、The?existing?FTP?sessions?will?continue?and?only?the?existing?BGP?sessions?will?be?dropped.30.WhichtwosignalingprotocolscouldbeusedinVPLStoadvertisesiteinformationbetweenPEs?（）A、IKEB、BGPC、RSVPD、LDP31.WhichJ-Webtabdoyouusetoaddlicencestothedevice?（）A、"Configure"B、"Troubleshoot"C、"Monitor"D、"Maintain"32.WhatisthefunctionperformedbyLSAType1?（）A、Createvirtuallinks.B、Advertiseexternalprefixes.C、Summarizeroutesbetweenareas.D、Advertisearouter'sinterfacesandmetrics.33.In?JUNOS?software，?which?type?of?encapsulation?is?required?on?a?PE?router?for?the?CE-facing?interface?in?a?Martini-based?VPN？（）A、ATMB、CCCC、HDLCD、Ethernet34.When?comparing?CPE?and?provider-provisioned?VPNs?（PPVPN），?which?two?statements?are?true？（）A、CPE?VPN’s?require?dedicated?VPN?aware?hardware?at?customer?site，?PPVPN?does?not.B、PPVPN’s?require?dedicated?VPN?aware?hardware?at?customer?site，?CPE?VPN’s?does?not.C、CPE?VPN’s?scale?better?than?PPVPN’s?as?they?do?not?require?a?per?site?configuration?on?the?CPED、PPVPN’s?scale?better?than?CPE?VPN’s?as?they?do?not?require?a?per?site?configuration?on?the?CPE35.WhichCLIcommandisusedtodisplaytheIPaddressassignedtoDynamicSubscriberInterfaceandrelatedhardwareaddressusingtheDHCPRelayProxyfunction?（）A、showipdhcpexternalB、showdhcpbindingrelay-proxyC、showipdhcpbindingrelay-proxyD、showdhcprelayproxybinding36.YouneedtocontrolSSH,HTTP,andTelnetaccesstoanMX240routerthroughanyinterface.Youhavedecidedtouseafirewallfilter.Howshouldyouapplythefirewallfilter?（）A、asanoutboundfilteroninterfacefxp0B、asanoutboundfilteroninterfacelo0C、asaninboundfilteroninterfacefxp0D、asaninboundfilteroninterfacelo037.AcustomerwantstocreateacustomJunosPulseconfiguration.Whichtwoarerequired?（）A、ConnectionsetB、ConfigurationsetC、CustominstallerD、Componentset38.Whichstatementistrueabouttheforwardingtable?（）A、Theforwardingtableisstoredinthecontrolplaneonly.B、Theforwardingtableisstoredinthecontrolplaneandintheforwardingplane.C、Theforwardingtablecontainsbothactiveandinactiveroutes.D、Theforwardingtablecancontainonlyasinglenexthopperdestination.39.Which?two?functions?of?JUNOS?Software?are?handled?by?the?data?plane？（）A、NATB、OSPFC、SNMPD、SCREEN?options40.WhichtwomulticastgroupssupportAuto-RPmappinganddiscovery?（）A、9B、9C、0D、041.WhichtwofeaturesprotecttheERXEdgeRouterfromdenial-of-serviceattacks?（）(Choosetwo.)A、ratelimitingofICMPB、RADIUSauthorizationsC、sourceaddressvalidationD、statefulfirewallontherouter42.Which?statement?is?true?about?the?internal?link?between?the?Routing?Engine?and?the?Packet-Forwarding?Engine？（）A、It?is?only?used?for?exception?traffic.B、It?is?an?FE?link?called?fxp2.C、It?is?rate-limited?to?avoid?DDOS?attacks.D、It?is?only?used?to?send?the?forwarding-table?from?the?Routing?Engine?to?the?Packet-Forwarding?Engine.43.Whatisthedecimalequivalentof00000110?（）A、2B、4C、6D、1144.Which?statement?describes?the?behavior?of?source?NAT?with?address?shifting？（）A、Source?NAT?with?address?shifting?translates?both?the?source?IP?address?and?the?source?port?of?a?packet.B、Source?NAT?with?address?shifting?defines?a?one-to-one?mapping?from?an?original?source?IP?address?to?atranslated?source?IP?address.C、Source?NAT?with?address?shifting?can?translate?multiple?source?IP?addresses?to?the?same?translated?IPaddress.D、Source?NAT?with?address?shifting?allows?inbound?connections?to?be?initiated?to?the?static?source?pool?IPaddresses.45.Whatarethreefirewallfilterterminatingactions?（）A、acceptB、logC、rejectD、discardE、drop46.AnIPsectunnelisestablishedonanSRXSeriesGatewayonaninterfacewhoseIPaddresswasobtainedusingDHCP.Whichtwostatementsaretrue?（）(Choosetwo.)A、OnlymainmodecanbeusedforIKEnegotiationB、Alocal-identitymustbedefinedC、ItmustbetheinitiatorforIKED、Aremote-identitymustbedefined47.Which?default?JUNOS?software?routing?table?contains?IPv6?unicast?routes？（）A、inet.6B、ipv6.0C、inet.0D、inet6.048.WhatarethreewaystocollectthediagnosticsfileswhenworkingwithJuniperNetworksTechnicalAssistanceCenter?（）(Choosethree.)A、Runthediag.exeCLIcommand.B、InWebView,gotoMonitor>Traffic>Export.C、InWebView,gotoAdmin>Tools>ExportData.D、InWebView,totoMonitor>Export>ExportLogs.E、InWebView,gotoAdmin>Tools>DiagnosticFile.49.Auserlogsinandismappedtotworoles.Thefirstrolehasamaximumtimeoutvalueof600minutesandthedefaultJuniperNetworkslogoontheuserinterfacepage.Thesecondrolehasamaximumtimeoutvalueof1200minutesandacustomlogoontheuserinterfacepage. Basedonthemergingofthesetworoles,whichtwowillbeapplied?（）A、AcustomlogoontheuserinterfacepageB、Amaximumtimeoutvalueof600minutesC、Amaximumtimeoutvalueof1200minutesD、AdefaultJuniperNetworkslogoontheuserinterfacepage50.Which?two?configurations?are?valid？（） A、AB、BC、CD、D51.Whichthreefunctionsareavailableunderthe"Maintain"tabofJ-Web?（）A、downloadanddeletelogfilesB、viewreal-timestatisticsofinterfacesC、rebootthesystemD、viewandaddlicensesE、editsecuritysettings52.AusersignsintotheJunosPulseAccessControlServiceonawirednetwork.Theuserthenmigratestoawirelessnetwork,receivesanewIPaddress,andnoticesthatthesessionisdisconnected.IntheadminGUI,whatmustbeconfiguredfortheusertostayconnectedwhenmigratingfromawiredtoawirelessnetwork?（）A、PersistentsessionB、DynamicevaluationC、RoamingsessionD、Browserrequestfollow-through53.WhatdoestheSRPdistributetothelinemoduleswhenaroutingtablechanges？（）A、updatedRIB-OutB、link-stateinformationC、anincrementalupdateD、thecompleteroutingtable54.Whataretworeasonswhyaroutemightbehidden?（）A、routepreferenceB、routingloopC、invalidnexthopD、routingpolicy55.WhichprocessoccursfirstduringtheEthernetDiscoveryStageprocessforaPPPoEserviceoffering?（）A、TheERXroutersendsanActiveDiscoveryOffermessage.B、TheERXroutersendsanActiveDiscoveryInitiationmessage.C、ThecustomerdevicesendsanActiveDiscoveryOffermessage.D、ThecustomerdevicesendsanActiveDiscoveryInitiationmessage.56.Bydefault,anL1/L2IS-ISrouteradvertiseswhatremotearearoutesintoaLevel1area?（）A、onlysummarizedroutesB、allroutesinthenetworkC、allroutesinthebackboneD、Noroutesareadvertised.57.AnetworkadministratorhasconfiguredsourceNAT,translatingtoanaddressthatisonalocallyconnectedsubnet.Theadministratorseesthetranslationworking,buttrafficdoesnotappeartocomeback. Whatiscausingtheproblem?（）A、Thehostneedstoopenthetelnetport.B、Thehostneedsarouteforthetranslatedaddress.C、Theadministratormustuseaproxy-arppolicyforthetranslatedaddress.D、Theadministratormustuseasecuritypolicy,whichwillallowcommunicationbetweenthezones.58.InwhichroutingtablewouldyoufindanOSPFV2route?（）A、ipv4-unicastB、inet.0C、inet.4D、inet.ipv459.Which?of?the?following?attributes?allows?a?VRF?to?accept?VPN?routes?from?another?VRF？?（）A、?route?listB、?route?originC、?route?targetD、?toute?distinguisher60.ClicktheExhibitbutton. Intheexhibit,whichstatementiscorrect?（）A、Threephysicalinterfacesareredundant.B、YoumustdefineanadditionalRedundancyGroup.C、node0willimmediatelybecomeprimaryinthecluster.D、Youmustissueanoperationalcommandandrebootthesystemfortheaboveconfigurationtotakeeffect.61.WhichtwodesigngoalsdescribetheJunosOSdesign?（）A、cleanseparationofsecurityandroutingpoliciesB、cleanseparationofcontrolandforwardingplanesC、modularizationofmultiplesoftwareprocessesD、asinglehardwareplatformforallsoftwareapplications62.Whichtwostatementsaretrueofanetworkmask?（）A、AsubnetmaskspecifiestheportionofanIPaddressthatisinabinaryformatB、AsubnetmaskspecifiestheportionofanIPaddressthatisinadecimalformatC、AsubnetmaskspecifiestheportionofanIPaddressthatrepresentsanetworkprefixD、AsubnetmaskspecifiestheportionofanIPaddressthatrepresetnsnetworkhosts63.Whichtwoprefixeswouldsummarizethenetworksshownbelow?（） A、/23B、/22C、/24D、/2164.What?is?shown?by?thecommand?show?interfaces?extensive?fe-0/0/0?but?not?shown?by?the?command?show?interface?detail?fe-0/0/0？（）A、input?error?counterB、interface?MTU?sizeC、input?packets?counterD、the?IP?address?on?logical?interface?fe-0/0/0.065.WhichthreeNLRIscanMBGPcarry?（）A、LDProutesB、IPv6routesC、RSVProutesD、Layer2VPNroutesE、Layer3VPNroutes66.Youhaveconfiguredafirewallfilterwithasingletermmatchingonpacketswithasourceaddressinthe/24subnet.Thistermonlyincludesthecountaction.Whichtwostatementsaretrueabouttrafficevaluatedbythisfirewallfilter?（）A、Packetsoutsidethe/24subnetwillbeaccepted.B、Packetsoutsidethe/24subnetwillberejected.C、Packetsoutsidethe/24subnetwillbecounted.D、Packetsoutsidethe/24subnetwillnotbecounted.67.Whichtwostatementsaretruewhenconfiguringadomain-id?（）A、ThedefaultOSPFdomain-idis.B、Inmostcases,adomain-idmustbeconfigured.C、Inmostcases,youdonotneedtoconfigureadomain-id.D、Foralayer3VPNconnectingmultipleOSPFdomains,configuringadomain-idcanhelpcontrolLSAtranslations.68.InJUNOSsoftware,whichtypeofencapsulationisrequiredonaPErouterfortheCE-facinginterfaceinaMartini-basedVPN?（）A、ATMB、CCCC、HDLCD、Ethernet69.WhichtwoauthenticationprotocolscanbeconfiguredforRIPonanERXEdgeRouter?（） A、AB、BC、CD、D70.ClicktheExhibitbutton. Intheexhibit,whatisthepurposeofthisOSPFconfiguration?（） A、TheroutersendsthefiledebugOSPF(containinghellossentandLSAupdates)tothesyslogserver.B、TheroutertracesbothOSPFhellossentandLSAupdates,andstorestheresultsinthedebugOSPFfile.C、TheroutertracesbothOSPFhellossentandLSAupdates,andsendstheresultstothesyslogprocesswiththedebugOSPFfacility.D、TheroutertracesallOSPFoperations,storestheresultsinthedebugOSPFfile,andmarksbothhellossentandLSAupdatesinthefilewithaspecialflag.71.WhichwordstartsacommandtodisplaytheoperationalstatusofaJunosdevice?（）A、putB、setC、showD、get72.Which?two?parameters?are?configured?in?IPsec?policy？（）A、modeB、IKE?gatewayC、security?proposalD、Perfect?Forward?Secrecy73.Whichcommandisusedtoexecuteamacrocalledsetup.mac?（） A、AB、BC、CD、D74.Howdoyouwritethecurrentcandidateconfigurationtothepermanentstoragemedia?（）A、[edit]

user@router#save/var/tmp/current.confB、[edit]

user@router#write/var/tmp/current.confC、[edit]

user@router#commit/var/tmp/current.confD、[edit]

user@router#dump/var/tmp/current.conf75.Which?two?statements?about?IS?reachability?TLV?（TLV?2）?and?the?extended?IS?reachability?（TLV?22）?are?true？（）A、TLV?22?supports?wide?metrics.B、TLV?2?is?only?used?in?Level?1?routers.C、TLV?22?displays?the?neighbor’s?extended?areas.D、Only?TLV?22?can?support?the?inclusion?of?sub-TLVs.E、?Only?TLV?22?can?be?flooded?across?L1/L2?boundaries.第2卷一.參考題庫(共75題)1.WhataretwostepstoconfigureuserauthenticationforaJunosPulseAccessControlService?（）A、Configureanauthenticationpolicyaspartoftheuserroledefinitions.B、ConfigureaSign-inPolicy.C、ConfigureauthenticationagentsaspartoftheuserroledefinitionsD、Configureanauthenticationpolicyaspartoftheauthenticationrealmdefinition.2.Referingtotheexhibit,whichstatementiscorrect?（） A、Thepacketshaveexceededthetime-to-livevalueB、ThereisaloopC、TheasterisksindicatearesponsetimeoutD、Theasteriskindicatethatthetracerouteiscompleted3.InaRouted1483network,aproviderdoesn'twanttoconfigurestaticroutesforitscustomernetworks. WhichcommandallowstheERXtoobtaintheframedroutestoredontheRADIUSserver?（）A、radiusaccountingserver5B、aaadomain-mapdynamic1483defaultloopback0C、subscriberipusercustomer1domainpasswordabcdeD、atmpvc99099aal5autoconfigsubscriberpasswordabcde4.YouwanttoconfigureasingleEBGPpeeringsessionoverparallelphysicalcircuits. WhichBGPfeatureenablesloadbalancinginthisscenario?（）A、multihopBGPB、multicastBGPC、routereflectionD、multiprotocolBGP5.Whichtwostatementsaretrueabouttherescueconfigurationfile?（）A、ItmustincludearootpasswordB、Itisrollbackfilenumber50,andyoucanrecoveritbyissuingrollback50C、ItiscreatedbyissuingrequestsystemconfigurationrescuesaveD、Itisupdatedautomaticallywhenyoucommit6.WhichtwoJunosplatformsprovidestatefulfirewallfunctionality?（）A、MXSeriesB、EXSeriesC、SRXSeriesD、QFXSeries7.Whichtwomethodsareusedtoassignaroute-distinguisherinaKompellaLayer2VPN?（）A、byassigningtheRDundertherouting-instancesB、byassigningtheRDunderprotocolsbgpC、byassigningtheRDunderrouting-optionsD、byassingtheRDunderpolicy-options8.AnERXEdgeRouterisoperatinginanMPLSnetworkusinginterfacelabelspace.Whatisusedtomakeaforwardingdecision?（）A、EXPbitsB、VPI/VCIC、shimheaderD、SNAPheader9.WhichinterfacetunnelparameterallowsanLSPtouseaspecifiedexplicitroute?（）A、path-optionB、route-optionC、explicit-path-optionD、explicit-route-option10.Whichtwostatementsaretrueabouttherescueconfigurationfile?（）A、Itmustincludearootpassword.B、Itisrollbackfilenumber50,andyoucanrecoveritbyissuingrollback50.C、Itiscreatedbyissuingrequestsystemconfigurationrescuesave.D、Itisupdatedautomaticallywhenyoucommit.11.WhatarethreeTLVsthatsupportIS-ISextensionsfortrafficengineering?（）A、ExtendedISreachabilityB、ExtendedIPreachabilityC、TrafficengineeringopaqueD、TrafficengineeringrouterIDE、ExtendedMPLSreachability12.Which?two?statements?describe?the?difference?between?JUNOS?Software?for?securityplatforms?and?a?traditional?router？（）A、JUNOS?Software?for?security?platforms?supports?NAT?and?PAT；?a?traditional?router?does?not?supportNAT?or?PAT.B、JUNOS?Software?for?security?platforms?does?not?forward?traffic?by?default；?a?traditional?router?forwardstraffic?by?default.C、JUNOS?Software?for?security?platforms?uses?session-based?forwarding；?a?traditional?