juniper认证考试真题精选.docx
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juniper认证考试真题精选
[单项选择题]
1、Youdeleteatraceoptionsfileandlaternoticethatnonewentriesarebeingwrittentothis
file.Whatwouldallowtheentriestobewrittentothefileagain?
（）
A.Issueacommitofthecurrent
configuration.
B.Issueacommitfullofthecurrent
configuration.
C.Issueacommitallofthecurrent
configuration.
D.Issueacommitconfirmedofthecurrent
configuration.
参考答案：
B
[单项选择题]
2、WhichstatementiscorrectaboutthevalidateoptionwhenupgradingJUNOSsoftware？
（）
A.ItwillchecktheMD5checksumoftheinstall
package.
B.Itwillcheckifthedevicemeetsthememoryrequirementsfortheinstall
package.
C.Itwillcheckthecompatibilityoftheconfigurationwiththeinstall
package.
D.Itwillcheckifthedevicemeetsthestoragerequirementfortheinstall
package.
参考答案：
C
[多项选择题]
3、WhichthreestatementsaretrueregardingtheNetworkTimeProtocol（NTP）inJUNOSplatforms?
（）
A.MD5authenticationis
supported.
B.Aclientalwayssynchronizestoaserverevenwhenthedifferencebetweentheserverclockandthelocalclockdiffersbyalarge
amount.
C.JUNOSsoftwarecanprovideaprimarytime
reference.
D.Theboot-serverconfigurationallowsaroutertosynchronizeitsclockwhenitbootsup,regardlessoftheoffsetbetweentheNTPclocksourceanditsinternal
clock.
E.Itisusefultocorrelatetimestampsonlogfilesandothereventsfortroubleshootingand
forensics.
参考答案：
A,D,E[单项选择题]
4、Wherearefilesqueuedfortransmissionwhenusingtheconfigurationarchivetransfer-on-commitfunction?
（）
A./var/config
B./var/queue
C./var/transfer/queue
D./var/transfer/config
参考答案：
D
[单项选择题]
5、Whatrepresentsthedecimalequivalenceof11000000101010001010110011110001？
（）
A.192.168.184.201
B.192.168.172.241
C.192.170.172.237
D.192.170.184.221
参考答案：
B
[单项选择题]
6、WhichnamingconventionisusedbyJuniperRouterswhenarchivingtheirconfigurationstoaremoteserver?
（）
A.yyyymmdd_HHMMSS_host-name_
juniper.conf.gz
B.host-name_
juniper.conf.gz_yyyymmdd_HHMMSS
C.yyyymmdd_HHMMSS_host-name_
juniper.conf
D.host-name_
juniper.conf_yyyymmdd_HHMMSS
参考答案：
B
[单项选择题]
7、Inwhichmodeareusersallowedtoconfigurethedevice，includinginterfaces，protocols，useraccess，andsystemhardwareproperties？
（）
A.priviledgedmode
B.configurationmode
C.monitoringmode
D.operationalmode
参考答案：
B
[单项选择题]
8、Whichcommandallowsyoutoviewinterfaceusagedetailsinrealtime?
（）
A.user@host>
debuginterfaceinterface-name
B.user@host>
monitorusageinterface-name
C.user@host>
monitorinterfaceinterface-name
D.user@host>
traceoptionsinterfaceinterface-name
参考答案：
C
[单项选择题]
9、OnaJuniperRouter，whereistheJUNOSsoftwarelocated？
（）
A.EPROM
B.Zipdrive
C.harddrive
D.compactflash
参考答案：
D
[单项选择题]
10、WhichoperationalmodecommandcanbeusedtosynchronizethelocalsystemwithanNTPserver?
（）
A.setntptime
64.32.129.3
B.setclockntp
64.32.129.3
C.settime
64.32.129.3
D.setdatentp
64.32.129.3
参考答案：
D
[单项选择题]
11、ThemonitortrafficcommandcloselyresembleswhichUNIX-basedutility?
（）
A.ps-x
B.passwd
C.ls-a-l
D.tcpdump
参考答案：
D
[单项选择题]
12、Whatistheinterfaceconnectingtheroutingenginetothepacketforwardingenginecalled？
（）
A.Loopback0
B.managementC.internal（fxp1）
D.controlinterface
参考答案：
C
[单项选择题]
13、OnaJuniperrouter，whatisthedefaultfileusedforsyslogmessages？
（）
A.system
B.errors
C.security
D.messages
参考答案：
D
[多项选择题]
14、IfaSONET/SDHinterfacetransmitlinkfailsbetweentwoJUNOSdevices,whichtwoalarmsordefectswouldbeseenonthosedevices?
（）
A.LOS
B.REI
C.BIP-B3
D.RDI
参考答案：
A,D
[单项选择题]
15、Whichcommandwilldisplaythecontentsoftheforwardingtable?
（）
A.showrouteforwarding-table
B.showforwarding
C.showconfiguration
参考答案：
A
[多项选择题]
16、ForwhichtwofunctionsistheRoutingEngineresponsible？
（）
A.packetforwarding
B.queuingfunctions
C.routingprotocolcontrol
D.JUNOSsoftwareoperation
参考答案：
C,D[单项选择题]
17、Duringapasswordrecovery,whatisthenextstepafterconfiguringthesystemtobootintosingle-usermode?
（）
A.Resettherootpassword
B.Pressthespacebar
C.Typerecovery
D.Pressthe"Enter"
key
参考答案：
C
[多项选择题]
18、Totroubleshootinterfaceproblems,youcanuseboththedisablecommandandthedeactivate
command.Whichtwostatementsarecorrect?
（）
A.Iftheinterfaceisdisabled,thelogicalunitwilladministratively
shutdown.
B.Iftheinterfaceisdeactivated,thephysicalinterfacewilladministratively
shutdown.
C.Iftheinterfaceisdeactivated,theinterfaceconfigurationisignoredduring
commit.
D.Iftheinterfaceisdisabled,thelogicalunitconfigurationisignoredduring
commit.
参考答案：
B,C
[单项选择题]
19、Whichcommanddoyouusetodisplaythemessagesseenduringthelastsystemboot?
（）
A.showsystemboot-messages
B.showchassismessages
C.showfilesystemboot-messages
D.showboot-logmessages
参考答案：
A
[多项选择题]
20、Whichthreestatementsaretrueofprotocols？
（）
A.Theyare
scalable.
B.TheyareDijkstra
based.
C.Theysharenetworklayerreachability
neighbors.
D.Theyautomatenexthop
decisions.
E.Theyaretolerantofconfiguration
errors.
参考答案：
A,C,D
[单项选择题]
21、InEthernetnetworks,duplexmismatcheswilllower
performance.Whicherrorstatisticscanbeseenifaduplexmismatchispresent?
（）
A.collisionsonthefull-duplexside;
runtsonthehalf-duplexside
B.collisionsonthefull-duplexside;
collisionsonthehalf-duplexside
C.collisionsonthehalf-duplexside;
framingerrorsonthefullduplexside
D.collisionsonthehalf-duplexside;
giantsonthefull-duplexside
参考答案：
C更多内容请访问《睦霖题库》微信公众号
[单项选择题]
22、Inwhichhierarchyareroutingpoliciesdefined?
（）
A.
[editpolicy-options]
B.
[editrouting-options]
C.
[editforwarding-options]
D.
[editprotocols]
参考答案：
A
[单项选择题]
23、WhichCLImodeallowsyoutomakeconfigurationchanges?
（）
A.enablemode
B.configurationmode
C.operationalmode
D.activemode
参考答案：
B
[单项选择题]
24、WhichmajorJ-WebmenushouldyouusetoupgradetheJUNOSsoftwareontherouter？
（）
A.Monitor
B.Maintain
C.Diagnose
D.Configuration
参考答案：
B[单项选择题]
25、WhentroubleshootingATM,whichcommandwouldallowyoutotestreachabilityfromonesideofanATMcloudtotheother?
（）
A.pingatmvci
0.100interfaceat-0/1/0end-to-end
B.pingatmvci
0.100interfaceat-0/1/0circuit
C.pingatmvci
0.100interfaceat-0/1/0far-end
D.pingatmvci
0.100interfaceat-0/1/0final-hop
参考答案：
A
[单项选择题]
26、WhichCLIcommanddoyouusetodeterminewhichfilesarecleanupcandidates?
（）
A.requestsystemstoragecleanupcandidates
B.requestsytemservicesstoragecandidates
C.requestsystemservicescandidatecleanup
D.requestsystemstoragecleanupdry-run
参考答案：
D
[多项选择题]
27、WhataretwodefaultroutingpoliciesonJunosdevices?
（）
A.TheBGPimportpolicyacceptsallBGP
routes.
B.TheBGPexportpolicyrejectsallactiveBGP
routes.
C.TheOSPFimportpolicyacceptsallOSPF
routes.
D.TheOSPFexportpolicyacceptsallactiveOSPF
routes.
参考答案：
A,C
[单项选择题]
28、HowmanyIPaddressescanbeconfiguredinainterface？
（）
A.oneprimaryandonesecondaryIPaddress
B.oneIPaddress
C.asmanyIPaddressesasyouwant
D.oneprimaryandmultiplesecondaryIPaddresses
参考答案：
C
given
[多项选择题]
29、WhichthreeSONETnetworkelementsareusedfortroubleshooting?
（）
A.line
B.path
C.circuit
D.section
E.segment
参考答案：
A,B,D
[单项选择题]
30、WhichstatemetnistrueregardingtheNetworkTimeProtocol（NTP）onJunosdevices?
（）
A.MD5authenticatonissupportedbytheJunosOS
B.ServermodeisnotsupportedbytheJunosOS
C.TheJunosOScanprovideaprimarytimereference
D.TheJunosOSdoesnotsupporttheuseofabootserver
参考答案：
A
[单项选择题]
31、WhichstatementiscorrectaboutpoliciesintheJunosOS?
（）
A.ExportpoliciesareusedtofilterroutesfromtheREforwardingtabletothePFEforwarding
table.
B.Exportpoliciesareusedtofilterroutesdestinedfortherouting
table.
C.Exportpoliciesareusedtofilterroutesbeingsenttoneighboring
devices.
D.Exportpoliciesareusedtofiltertrafficleavingthe
device.
参考答案：
C
[单项选择题]
32、Whatisusedtoviewstatusmessagessenttoafilenamed"test"
astheyaresent?
（）
A.monitorstarttest
B.showlogtest
C.viewlogtest
D.showtestrealtime
参考答案：
A
[多项选择题]
33、WhichtwostatementsregardingJUNOSarchitecturearecorrect？
（）
A.TheRoutingEnginehandlesallexception
traffic.B.TheRoutingEnginesynchronizestheroutetablewiththePFE
C.TheRoutingEngineishot-
pluggable.
D.TheRoutingEnginecontrolsthePFE
参考答案：
C,D
[单项选择题]
34、Whatisthedefaultactionforfirewallfilters?
（）
A.accept
B.reject
C.discard
D.log
参考答案：
C
[单项选择题]
35、WhichcommandisusedtoshowactivealarmsonaJuniperdevice?
（）
A.filelistalarm
B.showchassisalarms
C.showchassisstate
D.showhardwarealarms
参考答案：
B
[单项选择题]
36、Whichcommandisavalidwaytoviewthestatusofaninterface？
（）
A.>showinterfacesfe-0/0/0extensive
B.>showinterfacesfe-0/0/0status
C.>showinterfacesfe-0/0/0health-info
D.>showinterfacesfe-0/0/0verbose
参考答案：
A
[单项选择题]
37、Whichcommandwillallowyoutoquicklydeterminetheadministrativestatusofal
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