JN0101最新题库.docx
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JN0101最新题库
JN0-101最新题库JuniperNetworksCertifiedInternetAssociate,Junos（JNCIA-Junos）
Q7.Whatrepresentsthebinaryequivalenceof207?
A.11001111
B.11101011
C.11010111
D.11010101
Answer:
A
Q8.Whatmustbeconfiguredpriortothefirstcommitafterfactorydefaultsareloaded?
A.rootauthentication
B.defaultgateway
C.hostname
D.managementservices
Answer:
A
Q9.WhichaccountisusedtoaccessaJunosdeviceinfactory-defaultconfiguration?
A.root
B.admin
C.juniper
D.user
Answer:
A
Q10.
YouneedtocontrolSSH.HTTP,andTelnetaccesstoanMX240routerthroughanyinterface.Youhavedecidedtouseafirewallfilter.Howshouldyouapplythefirewallfilter?
A.asanoutboundfilteroninterfacefxp0
B.asanoutboundfilteroninterfacelo0
C.asaninboundfilteroninterfacefxp0
D.asaninboundfilteroninterfacelo0
Answer:
D
Q11.
YOUissuethepinsinterfacetl-1/1/01.1.1.1bypass-routingcount1000rapidcommand.
Whichstatementiscorrect?
A.Thebypass-routingparameterisusedtotestthedensityontheTIline.
B.Thebypass-routingparametercannotbeusedonaT1interface.
C.Thebypass-routingparameterallowsyoutopingahostthroughaninterfacethathasnoroutethroughit.
D.Thebypass-routingparameterallowsyoutopingalocalWANinterfacewithoutgeneratinganyoutboundtraffic
Answer:
C
Explanation:
bypass-routing--（Optional）Bypassthenormalroutingtablesandsendpingrequestsdirectlytoasystemonanattachednetwork.Ifthesystemisnotonadirectlyattachednetwork,anerrorisreturned.Usethisoptiontopingalocalsystemthroughaninterfacethathasnoroutethroughit.
Reference:
mgmt-monitor12.html
Q12.Whichtwostatementsaretrueabouttheforwardingtable?
（Choosetwo.）
A.Theforwardingtablelistseachsourceprotocolandpreferenceforeachdestination.
B.Theforwardingtablecontainsonlyactiveroutes.
C.Theforwardingtableisusedtoprocesstransitpackets.
D.Theforwardingtableisstoredincompactflash
Answer:
B,C
Q13.WhichthreeprotocolsuseUDPasatransportprotocolbydefault?
（Choosethree.）
A.HTTP
B.TFTP
C.DNS
D.SNMP
E.SMTP
Answer:
B,C,D
Q14.ClicktheExhibitbutton
Giventheroutingentriesshownintheexhibit,whichnext-hopIPaddresswillbeusedfordiedestinationIPaddress192.168.1.142?
（Assumethatonlystaticroutesareavailableforthedestination.）
A.10.20.106.10
B.10.20.14.131
C.10.181.1
D.10.20.14.130
Answer:
D
Q15.WhatisthedefaultprotocolpreferenceforOSPFinternalroutes?
A.10
B.15
C.150
D.160
Answer:
A
Explanation:
Reference:
overview4.html
Q16.YouareatthetopofthehierarchyandmustconfigureOSPFoninterfaceso-0/0/0unit100.
Whichtwoachievethisresult?
（Choosetwo）
A.setprotocols
setospfarea0
setinterfaceso-0/0/0.100
B.setprotocolsospfarea0interfaceso-0/0/0.100
C.editprotocolsospfinterfaceso-0/0/0.100
D.editprotocolsospfarea0setinterfaceso-0/0/0.100
Answer:
B,D
Explanation:
Reference:
Q17.ClicktheExhibitbutton.
Referringtotheexhibit,whichtwostatementsaretrue?
（Choosetwo）
A.Theroute192.168.10/25isaccepted,
B.Theroute192.168.2.0/24isaccepted
C.OSPFrouteswillbeexportedintoRIP.
D.RIProuteswillbeexportedintoOSPF.
Answer:
A,D
Explanation:
Reference:
Q18.Youhavebeenaskedtocreateastaticroutewithanexthopthatisnotdirectlyconnectedtotherouter.Whichconfigurationparameterenablesthestaticroutetoaccomplishthisscenario?
A.resolve
B.indirect
C.next-hop
D.recursive
Answer:
A
Explanation:
Reference:
route-can-be-resolved-to-a-prefix-that-is-not-directly-connected.html#id-10385931
Q19.
Whichtwostatementsaretrueabouttherescueconfigurationfile?
（Choosetwo）
A.Itmustincludearootpassword.
B.Itisrollbackfilenumber50,andyoucanrecoveritbyissuingrollback50.
C.Itiscreatedbyissuingrequestsystemconfigurationrescuesave.
D.Itisupdatedautomaticallywhenyoucommit
Answer:
A,C
Q20.
Whataretwovalidmatchcriteriaforaroutingpolicy?
（Choosetwo.）
A.OSPFareaID
B.prefixlist
C.port
D.time-to-live（TTL）
Answer:
A,C
Explanation:
Reference:
swconfig-interfaces-and-routing/topic-47524.html
Q21.ClicktheExhibitbutton
"PassAnyExam.AnyTime."-10JuniperJN0-101:
PracticeExam
Giventheconfigurationandroutingtableshownindieexhibit,whichrouteswillbeadvertisedtoOSPFneighborsbecauseofthedemopolicy?
A.192.168.0.0/16only
B.192.168.0.0/17only
C.192.168.500/24and192168.51.0/24
D.192.168.0.0/17,192.168.500/24.and192.168.51.0/24
Answer:
D
Q22.Whatisthepurposeofanetworkmask?
A.Itisusedtoidentifythemaximumhopcountofasubnetwork
B.ItisusedtoidentifyanIPaddressaseitherprivateorpublic.
C.ItisusedtoidentifythenetworktowhichanIPaddressbelongs.
D.ItisusedtoidentifythetotalnumberofbitspresentinanIPaddress
Answer:
C
Q23.ClicktheExhibitbutton.
"PassAnyExam.AnyTime."-11JuniperJN0-101:
PracticeExam
YouhavebeenaskedtoestablishreachabilitybetweenRouter1'sandRouter2'sloopbackaddressesasshownintheexhibit.
Whichtwostepswillaccomplishthistask?
（Choosetwo.）
A.CreateastaticrouteonRouter1to172.17.281withanexthopof10.10.10.2.
B.CreateastaticrouteonRouter1to172.17.281withanexthopof10.10.10.1.
C.CreateastaticrouteonRouter2to172.17.25.1withanexthopof10.10.10.1.
D.CreateastaticrouteonRouter1to172.17.25.1withanexthopof10.10.10.2.
Answer:
A,C
Q24.Whichcommanddisplaystheamountofspaceavailableonthestoragemedia?
A.showchassisrouting-engine
B.showsystemfile-storage
C.filelist
D.showsystemstorage
Answer:
D
Explanation:
Example:
root@rc2.au.glk>showsystemstorage
FilesystemSizeUsedAvailCapacityMountedon
/dev/ad0s1a432M304M123M71%/
devfs1.0K1.0K0B100%/dev
devfs1.0K1.0K0B100%/dev/
/dev/md0330M330M0B100%/junos
"PassAnyExam.AnyTime."-12JuniperJN0-101:
PracticeExam
/cf432M304M123M71%/junos/cf
devfs1.0K1.0K0B100%/junos/dev/
procfs4.0K4.0K0B100%/proc
/dev/bo0s1e48M31K48M0%/config
/dev/md1336M13M296M4%/mfs
/cf/var/jail432M304M123M71%/jail/var
devfs1.0K1.0K0B100%/jail/dev
/dev/md239M4.0K36M0%/mfs/var/run/utm
Q25.WhichstatementistrueregardingtheJunosOS?
A.TheJunoskernelisbasedontheSolarisoperatingsystem.
B.TheJunoskernelisbasedontheGNUZebraoperatingsystem.
C.TheJunoskerneliscompletelyoriginalandnotbasedonanyotheroperatingsystem
D.TheJunoskernelisbasedontheFreeBSDUNIXoperatingsystem
Answer:
D
Q26.Whichtwologin-classpermissionscouldpermitausertoviewthesystemhierarchyoftheactiveconfiguration?
（Choosetwo.）
A.systempermission
B.view-configurationpermission
C.networkpermission
D.super-userpermission
Answer:
A,D
Explanation:
Reference:
classes.html
Q27.Whataretworeasonswhyaroutemightbehidden?
（Choosetwo.）
"PassAnyExam.AnyTime."-13JuniperJN0-101:
PracticeExam
A.routepreference
B.routingloop
C.invalidnexthop
D.routingpolicy
Answer:
C,D
Q28.WhatisanadvantageofmultiplesoftwareprocessesrunningintheJunosOS?
A.Eachprocesshasitsownprotectedmemoryspace.
B.Eachprocessisstartedmanuallybytheuseratboot.
C.Allprocessesaredependentoneachother.
D.Multipleprocessesalloweachroutingprotocoltobeindependent
Answer:
A
Q29.Whichtwostatementsaccuratelydescribeabroadcastdomain?
（Choosetwo.）
A.Broadcastdomainsrequirethattheparticipatingdevicesconnecttocommonswitchesorhubs.
B.BroadcastdomainsconsistofdevicesreachablebyframesaddressedtotheLayer2broadcastaddress
C.Broadcastdomainsrequireagatewaydevicesuchasarouter.
D.BroadcastdomainsconsistofdevicesthatresideonthesameVLAN
Answer:
B,D
Q30.WhichtwostatementsaretrueregardinganEthernetcollisiondomain?
（Choosetwo.）
A.Ifaswitchisused,thecollisiondomainislimitedtoeachdeviceandtheswitch.
B.Ifahubisused,thecollisiondomainislimitedtoeachdeviceandthehub.
C.Ifahubisused,thecollisiondomainincludesalldevicesconnectedtothehub.
D.Ifaswitchisused,thecollisiondomainincludesalldevicesconnectedtotheswitch.
Answer:
A,C
"PassAnyExam.AnyTime."-14JuniperJN0-101:
PracticeExam
Q31.ClicktheExhibitbutton.
Referringtotheexhibit,whichstatementiscorrect?
A.Thepacketshaveexceededthetime-to-livevalue.
B.Thereisaloop
C.Theasterisksindicatearesponsetimeout.
D.Theasterisksindicatethatthetracerouteiscompleted.
Answer:
C
Q32.Bydefault,whichcharacterindicatestheUNIXshellprompt?
A.#
B.>
C.$
D.%
Answer:
D
Q33.Whichstatementistrueabouttermsinapolicy?
A.Asingletermcanbeappliedtoaprotocolorinterface,independentofthepolicy
B.Everypolicymustcontainatleastoneterm.
C.Thenameofatermislimitedtofivecharacters.
D.Termsareoptional
Answer:
B
Q34."PassAnyExam.AnyTime."-15JuniperJN0-101:
Practice
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