juniper認(rèn)證筆試（2018-2023年）真題摘選含答案

長風(fēng)破浪會有時，直掛云帆濟(jì)滄海。juniper認(rèn)證筆試（2018-2023年）真題摘選含答案（圖片大小可自由調(diào)整）卷I一.參考題庫(共30題)1.Whataretwovalidactionsforroutingpolicy?（）A、discardB、nextpolicyC、acceptD、ignore2.Which?ofthefollowingmulticast?mode?does?Auto-RP?require？（）A、Link-modeB、Dense?modeC、Sparse?modeD、Sparse-dense?mode3.WhataretwoattributesoftheExtendedIS-ReachabilityTLV22?（）A、system-IDB、band-widthC、wide-metricsD、authentication4.Whichtwofirewallfilteractionswillterminatetheprocessingandevaluationofapacket?（）A、permitB、acceptC、denyD、discard5.WhichstatementiscorrectaboutpoliciesintheJunosOS?（）A、ExportpoliciesareusedtofilterroutesfromtheREforwardingtabletothePFEforwardingtable.B、Exportpoliciesareusedtofilterroutesdestinedfortheroutingtable.C、Exportpoliciesareusedtofilterroutesbeingsenttoneighboringdevices.D、Exportpoliciesareusedtofiltertrafficleavingthedevice.6.ABridged1483serviceofferingisgroupingDSLusersintoalargesubnet.Whatarethreecharacteristicsofthisconfiguration？（）A、ItburnsIPaddresses.B、ItconservesIPaddresses.C、AgroupofPVCsisasubnet.D、ItprovidesanumberedIPaddresstotheERXE、ItprovidesanIPunnumberedaddresstoERX7.UnderwhichJunoshierarchylevelaresecuritypoliciesconfigured?（）A、[editsecurity]B、[editprotocols]C、[editfirewall]D、[editpolicy-options]8.Youhavebeenaskedtocreateastaticroutewithanexthopthatisnotdirectlyconnectedtotherouter.Whichconfigurationparameterenablesthestaticroutetoaccomplishthisscenario?（）A、resolveB、indirectC、next-hopD、recursive9.A?BGP?router?has?the?following?configuration：? protocols{? bgp{? export[policy-1?policy-2?policy-3]；? }}? policy-options{? policy-statementpolicy-2?{? termget-statics{? fromprotocol?static；? thenaccept；? }? termreject-all?{? thenreject；? }? }? policy-statementpolicy-1?{? termget-aggregate?{? fromprotocol?aggregate；? thenaccept；? }? termreject-all?{? thenreject；? }? }? policy-statementpolicy-3?{? termget-ospf?{? fromprotocol?ospf；? thenaccept；? }? termreject-all?{? thenreject；? }? }? }?? Which?policy?term?is?evaluated?first?when?exporting?routes？（）A、get-ospfB、reject-allC、get-staticsD、get-aggregate10.ThetrafficengineeringextensionstoRSVPprovidewhatfunctionality?（）A、IProutingB、datasecurityC、labeldistributionD、datacompression11.WhatistheoperatingsystemdoJuniperNetworksMXSeriesroutersuse?（）A、IOSB、MX-OSC、UNIXD、JunosOS12.Bydefault,whichcharacterindicatestheconfigurationmodeprompt?（）A、#B、>C、$D、%13.WhichtwoitemsshouldyouknowwhenconfiguringOSPFtodynamicallylearnroutes?（）(Choosetwo.)A、OSPFareaIDB、OSPFneighboraddressC、OSPFloopbackaddressD、OSPFauthenticationtype14.WhataretwowaystoviewthesystemlogfilesonaWXdevice?（）(Choosetwo.)A、UsetheCLIandentershowlog.B、UsetheCLIandentershowall.C、UsetheCLIandentershowlogging.D、InWebView,chooseAdmin>Tools>DisplaySystemLog.15.You?have?a?firewall?filter?containing?two?terms?applied?in?an?inbound?direction?on?a?customer?interface.?You?would?like?this?filter?to?protect?your?network?from?a?spoofed?denial?of?service?attack.?What?match?criterion?should?be?used?in?the?first?term?of?the?filter？（）A、Source?TCP?portB、Source?IP?addressC、Destination?TCP?portD、Destination?IP?address16.According?to?JUNOS?software?route?selection?algorithm，?which?IS-IS?route?type?is?most?preferred？（）A、Level?1?internal?routesB、Level?1?external?routesC、Level?2?internal?routesD、Level?2?external?routes17.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.18.WhichconfigurationcommandassignsahostroutetotheCPEworkstationaddressof192.168.10.1inaBridged1483network?（）A、iproute192.168.10.1255.255.255.255atm6/2.1B、iproute192.168.10.1255.255.255.252atm6/2.1C、addroute192.168.10.1255.255.255.252atm6/2.1D、addroute192.168.10.1255.255.255.255atm6/2.119.WhyisIPv6packetprocessingmoreeffectivethanIPv4packetprocessing?（）A、fixedheadersizeB、smallerheadersizeC、fewerheaderfieldsD、variableheadersize20.WhichthreearenecessaryforantispamtofunctionproperlyonabranchSRXSeriesdevice?（）(Choosethree.)A、anantispamlicenseB、DNSserversconfiguredontheSRXSeriesdeviceC、SMTPservicesonSRXD、aUTMprofilewithanantispamconfigurationintheappropriatesecuritypolicyE、antivirus(fullorexpress)21.Whichtwostatementsaretrueabouttherescueconfigurationfile?（）A、ItmustincludearootpasswordB、Itisrollbackfilenumber50,andyoucanrecoveritbyissuingrollback50C、ItiscreatedbyissuingrequestsystemconfigurationrescuesaveD、Itisupdatedautomaticallywhenyoucommit22.InJUNOSsoftware,whichwouldpreventanOSPFrouterfromimportingthe10.0.0.4/30summaryroute?（）A、Importpoliciesarenotallowedforinternalroutes,sothisisnotpossible.B、Exportpoliciesarenotallowed,sothisisnotpossible.C、Applyafirewallfiltermatching10.0.0/4/30andrejecttheroute.D、Applyanimportpolicymatching10.0.0.4/30andrejecttheroute.23.Whatistheroleofroutepreference?（）A、Itisusedasatiebreakerwhenthesameprefixisavailablethroughmultipleprotocols.B、Itisusedtodeterminethepreferredpathtoagivendestination.C、Itisusedtoselectthebestroutebetweenmultipleequal-costpaths.D、Itisusedtoselectwhichroutingtabletouseforforwarding.24.WhataretworulebasetypeswithinanIPSpolicyonanSRXSeriesdevice?（）(Choosetwo.)A、rulebase-ipsB、rulebase-ignoreC、rulebase-idpD、rulebase-exempt25.Whichroutefiltermatchtypeonlymatchesprefixesgreaterthanthedefinedprefix?（）A、exactB、uptoC、longerD、orlonger26.Whichcommanddoyouusetodisplaythemessagesseenduringthelastsystemboot?（）A、showsystemboot-messagesB、showchassismessagesC、showfilesystemboot-messagesD、showboot-logmessages27.HostAopensaTelnetconnectiontoHostB.HostAthenopensanotherTelnetconnectiontoHostB.TheseconnectionsaretheonlycommunicationbetweenHostAandHostB.Thesecuritypolicyconfigurationpermitsbothconnections. HowmanyflowsexistbetweenHostAandHostB?（）A、1B、2C、3D、428.In?JUNOS?software，?which?command?is?used?to?configure?TED?support?for?OSPF？（）A、set?protocols?rsvp?cspf-enableB、set?protocols?mpls?cspf-enableC、set?protocols?rsvp?traffic-engineeringD、set?protocols?ospf?traffic-engineering29.Whataretwovalidactionsforaroutingpolicy?（）A、discardB、nextpolicyC、acceptD、ignore30.Which?configuration?shows?a?pool-based?source?NAT?without?PAT’？（） A、AB、BC、CD、D卷I參考答案一.參考題庫1.參考答案:B,C2.參考答案:B3.參考答案:A,C4.參考答案:B,D5.參考答案:C6.參考答案:B,C,E7.參考答案:A8.參考答案:A9.參考答案:D10.參考答案:C11.參考答案:D12.參考答案:A13.參考答案:A,D14.參考答案:A,D15.參考答案:B16.參考答案:A17.參考答案:A,D18.參考答案:A19.參考答案:A20.參考答案:A,B,D21.參考答案:A,C22.參考答案:A23.參考答案:A24.參考答案:A,D25.參考答案:C26.參考答案:A27.參考答案:D28.參考答案:D29.參考答案:B,C30.參考答案:C卷II一.參考題庫(共30題)1.Whichstatementistrueaboutimportandexportroutingpolicies?（）A、Importpoliciesconcernroutesreceivedanddeterminewhichroutesgetputintotheroutingtable.B、Exportpoliciesconcernroutesreceivedanddeterminewhichroutesgetputintotheroutingtable.C、Exportpoliciesareappliedbeforetheroutingtable.D、Importpolicesareappliedaftertheroutingtable.2.WhichconfigurationcommandcausesaPPPoEsubscribertobeconnectedtoacaptiveportal?（）A、urlB、motmC、acNameD、sessions3.WhatisavalidmulticastMACaddress?（）A、00:90:69:9f:ea:46B、ff:ff:ff:ff:ff:ffC、01:00:5e:28:12:95D、99:99:99:99:99:994.What?is?the?administrative?scoping?address?range?associated?with?global?scope？（）A、224.0.0.0/24B、239.128.0.0/10C、239.192.0.0/14D、224.0.1.0/38.255.255.2555.AcompanyisusingRADIUStoauthenticateloginrequeststoitsJuniperNetworksrouters.UsersshouldstillbeabletoauthenticateusingthelocalpassworddatabasebutonlyiftheRADIUSserverisunreachable.WhichJUNOSsoftwareconfigurationaccomplishesthisgoal?（）A、authentication-orderradius;B、authentication-orderpassword;C、authentication-order[radiuspassword];D、authentication-order[passwordradius];6.YouhavebeenaskedtoestablishreachabilitybetweenRouter1'sandRouter2'sloopbackaddressesasshownintheexhibit.Whichtwostepswillaccomplishthistask?（） A、CreateastaticrouteonRouter1to172.17.28.1withanexthopof10.10.10.2.B、CreateastaticrouteonRouter1to172.17.28.1withanexthopof10.10.10.1.C、CreateastaticrouteonRouter2to172.17.25.1withanexthopof10.10.10.1.D、CreateastaticrouteonRouter1to172.17.25.1withanexthopof10.10.10.2.7.Which?two?commands?can?be?used?to?monitor?firewall?user?authentication？（）A、show?access?firewall-authenticationB、show?security?firewall-authentication?usersC、show?security?audit?logD、show?security?firewall-authentication?history8.AnERXEdgeRouterisoperatinginanMPLSnetworkusinginterfacelabelspace.Whatisusedtomakeaforwardingdecision?（）A、EXPbitsB、VPI/VCIC、shimheaderD、SNAPheader9.Whichtwostatementsaretrueabouttherescueconfigurationfile?（）A、Itmustincludearootpassword.B、Itisrollbackfilenumber50,andyoucanrecoveritbyissuingrollback50.C、Itiscreatedbyissuingrequestsystemconfigurationrescuesave.D、Itisupdatedautomaticallywhenyoucommit.10.TheIPaddress192.168.100.1belongstowhichclassofIPaddressspace?（）A、ClassAB、ClassBC、ClassCD、ClassD11.WhichinterfacetypeconnectsthecontrolandforwardingplanesonanMXSeriesdevice?（）A、fxp1B、fxp0C、me0D、ae112.WhichnamingconventionisusedbyJuniperRouterswhenarchivingtheirconfigurationstoaremoteserver?（）A、yyyymmdd_HHMMSS_host-name_juniper.conf.gzB、host-name_juniper.conf.gz_yyyymmdd_HHMMSSC、yyyymmdd_HHMMSS_host-name_juniper.confD、host-name_juniper.conf_yyyymmdd_HHMMSS13.AccordingtoJUNOSsoftwarerouteselectionalgorithm,whichIS-ISroutetypeismostpreferred?（）A、Level1internalroutesB、Level1externalroutesC、Level2internalroutesD、Level2externalroutes14.IfHostCheckerrestrictionsareappliedattherolelevelandthe"AllowaccesstotheroleifanyONEoftheselectpoliciesispassed"optionisunchecked,whichtwostatementsaretrue?（）A、Allrolesareevaluatedtogether.B、Eachroleisevaluatedseparately.C、Clientsmustpassallpoliciestoaccesstherole.D、Clientswillpassaslongasonepolicyisaccepted.15.DuringOSPFadjacencyformation,inwhichstateisarouterwhenitissendingLSAheaderinformationtoitsneighbor?（） A、AB、BC、CD、D16.Youhavebeenaskedtoconfigureyourroutertosendlink-relatedSNMPtrapnotificationstothenetworkmanagementsystem(NMS)locatedataddress172.16.17.1.Whichtwocommandsarerequired?（）A、setsnmptrap-groupmy-trap-grouptargets172.16.17.1B、setsnmptargets172.16.17.1C、setsnmptrap-groupmy-trap-grouplink-statusD、setsnmptrap-groupmy-trap-groupcategorieslink17.WhichtwostatementsarecorrectregardingMPLSLSPestablishmentmethods?（）(Choosetwo.)A、LDPusesDownStreamOnDemand.B、RSVPusesDownStreamOnDemand.C、LDPusesDownStreamUnsolicited.D、RSVPusesDownStreamUnsolicited.18.ThreeIS-ISroutersonabroadcastsegmenthavedifferentpriorityvaluesconfigured.WhichrouteriselectedtheDISonthatbroadcastsegment?（）A、therouterwiththelowestpriorityB、therouterwiththehighestpriorityC、therouterwiththehighestSystemIDD、therouterwiththehighestIPaddress19.AcustomerhaspurchasedanewJunosPulseAccessControlServiceandwantstoinstallitinanexistingcluster.Afterinitialconfiguration,thecustomerfindsthatthefirmwareversionrunningontheJunosPulseAccessControlServiceis4.1r5,buttheexistingclusterisrunningfirmwareversion4.1r3. WhichtwoactionsmustbeperformedtoallowthenewJunosPulseAccessControlServicetoloadtheolderversionoffirmware?（）A、InstallavalidlicenseonthenewJunosPulseAccessControlService.B、Whenloadingtheolderfirmware,deletealltheexistingdataontheJunosPulseAccessControlService.C、AddthenewJunosPulseAccessControlServicetotheexistingcluster.D、Downloadthe4.1r3versionfirmwarefromtheJunipersupportwebsite.20.Regardingcontentfiltering,whataretwopatternliststhatcanbeconfiguredintheJunosOS?（）(Choosetwo.)A、protocollistB、MIMEC、blocklistD、extension21.Whichtwostatementsaccuratelydescribeabroadcastdomain?（）A、Broadcastdomainsconsistofdevicesthatconnecttoacommonswitchorhub.B、BroadcastdomainsconsistofagroupofdevicesthatcanbereachedbysendingaframeaddressedtotheLayer2broadcastaddress.C、Broadcastdomainsrequireagatewaydevicesuchasarouter.D、Broadcastdomainsconsistofdevicesthatresideonthesamesub-network.22.Which?two?steps?are?performed?when?configuring?a?zone？（）A、Define?a?default?policy?for?the?zone.B、Assign?logical?interfaces?to?the?zone.C、Assign?physical?interfaces?to?the?zone.D、Define?the?zone?as?a?security?or?functional?zone23.ClicktheExhibitbutton. Anetworkadministratorreceivescomplaintsthattheapplicationvoicecubeistimingoutafterbeingidlefor30minutes.Referringtotheexhibit,whatisaresolution?（）A、[edit]user@host#setapplicationsapplicationvoicecubeinactivity-timeoutneverB、[edit]user@host#setapplicationsapplicationvoicecubeinactivity-timeout2C、[edit]user@host#setapplicationsapplicationvoicecubedestination-port5060D、[edit]user@host#setsecuritypoliciesfrom-zonetrustto-zonetrustpolicyintrazonethentimeoutnever24.Youhavebeenaskedtoconfigurealoginclasswhichwillpermititsuserstoviewandedittheconfiguration.Theclassshouldonlyallowtheconfigurationoftheinterfacesandfirewallheirarchies.Whichconfigurationcorrectlyaccomplishesthis?（） A、AB、BC、CD、D25.InJUNOSsoftware,whichthreeroutingprotocolscanbeusedtorouteIPv6?（）A、IS-ISB、StaticC、RIPv2D、OSPFv2E、MP-BGP26.Anetworkadministratorreceivescomplaintsfromtheengineeringgroupthatanapplicationononeserverisnotworkingproperly.Afterfurtherinvestigation,theadministratordetermi