CCNP642832练习题无答案版.docx

CCNP642832练习题无答案版.docx

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CCNP642832练习题无答案版

1.WhichtwostatementsabouttheCiscoAironetDesktopUtility（ADU）aretrue?

（Selecttwo）

A.TheAironetDesktopUtility（ADU）profilemanagerfeaturecancreateandmanageonlyoneprofileforthewirelessclientadapter.

B.TheAironetDesktopUtility（ADU）cansupportonlyonewirelessclientadapterinstalledandusedatatime.

C.TheAironetDesktopUtility（ADU）canbeusedtoestablishtheassociationbetweentheclientadapterandtheaccesspoint,manageauthenticationtothewirelessnetwork,andenableencryption.

D.TheAironetDesktopUtility（ADU）andtheMicrosoftWirelessConfigurationManagercanbeusedatthesametimetoconfigurethewirelessclientadapter.

Answer:

2.AtwhichlayeroftheOSImodeldoestheSpanningTreeProtocol（STP）operateat?

A.Layer5

B.Layer4

C.Layer3

D.Layer2

E.Layer1

Answer:

3.Incomputernetworkingamulticastaddressisanidentifierforagroupofhoststhathavejoinedamulticastgroup.MulticastaddressingcanbeusedintheLinkLayer（OSILayer2）,suchasEthernetMulticast,aswellasattheInternetLayer（OSILayer3）asIPv4orIPv6Multicast.Whichtwodescriptionsarecorrectregardingmulticastaddressing?

A.Thefirst23bitsofthemulticastMACaddressare0x01-00-5E.Thisisareservedvaluethatindicatesamulticastapplication.

B.Thelast3bytes（24bits）ofthemulticastMACaddressare0x01-00-5E.Thisisareservedvaluethatindicatesamulticastapplication.

C.TocalculatetheLayer2multicastaddress,thehostmapsthelast23bitsoftheIPaddressintothelast24bitsoftheMACaddress.Thehigh-orderbitissetto0.

D.Thefirst3bytes（24bits）ofthemulticastMACaddressare0x01-00-5E.Thisisareservedvaluethatindicatesamulticastapplication.

Answer:

4.EIGRPisbeingusedastheroutingprotocolonthePassGuidenetwork.Whiletroubleshootingsomenetworkconnectivityissues,younoticealargenumberofEIGRPSIA（StuckinActive）messages.WhatcausestheseSIAroutes?

（Selecttwo）

A.TheneighboringrouterstopsreceivingACKpacketsfromthisrouter.

B.Theneighboringrouterstartsreceivingrouteupdatesfromthisrouter.

C.Theneighboringrouteristoobusytoanswerthequery（generallycausedbyhighCPUutilization）.

D.Theneighboringrouterishavingmemoryproblemsandcannotallocatethememorytoprocessthequeryorbuildthereplypacket.

Answer:

5.PartoftheroutingtableofrouterPG1isdisplayedbelow:

Fromanalyzingtheabovecommandoutput,whatistheadministrativedistanceoftheexternalEIGRProutes?

A.24

B.32

C.90

D.170

E.27316

F.Noneoftheotheralternativesapply

Answer:

6.Whiletroubleshootingsomeconnectivityissues,youissuethe“showipospfdatabase”inordertoexaminethelinkstatedatabase.WhichthreeofthestatementsbelowaretrueregardingtheOSPFlinkstatedatabase?

（Selectthree）

A.Eachrouterhasanidenticallinkstatedatabase.

B.Externalroutesareimportedintoaseparatelinkstatedatabase.

C.SynchronizationoflinkstatedatabasesismaintainedviafloodingofLSAs.

D.Informationinthelinkstatedatabaseisusedtobuildaroutingtablebycalculatingashortest-pathtree.

E.Bydefault,linkstatedatabasesarerefreshedevery10minutesintheabsenceoftopologychanges.

Answer:

7.WhichcommandshouldyouusetoverifywhatnetworksarebeingroutedbyagivenOSPFprocess?

A.showipospf

B.showiproute

C.showipprotocol

D.showipospfdatabase

E.Noneoftheotheralternativesapply

Answer:

8.Youhaveamulti-areaOSPFnetworkandyou’reconcernedbecauseoneofthesitesishavingconnectivityproblemtoresourcesinadifferentarea.WhichIOSprivilegedmodecommandwouldyouentertoconfirmthatyournetwork:

A）hasapathtoitsABR,B）hasapathtoitsASBR,andC）theSPFcalculationisfunctional?

A.showipprotocols

B.showrunning-config

C.showipospfneighbor

D.showipospfborder-routers

Answer:

9.AnOSPFlinkcanbeinmultiplestatesatanygivenmoment（ie.Exstart,exchange,full）.WhichtwoIOScommandsletyouviewthestateofthelink?

（Selecttwo）

A.showipospf

B.showipprotocols

C.showipospfneighbor

D.showipospfinterface

Answer:

10.WhichcommandwoulddisplayOSPFparameterssuchasfilters,defaultmetric,maximumpaths,andnumberofareasconfiguredonarouter?

A.showipprotocol

B.showiproute

C.showipospfinterface

D.showipospf

E.showipinterface

F.Noneoftheotheralternativesapply

Answer:

11.WhichIOScommandwouldyouusetofindoutwhichnetworksareroutedbyaparticularOSPFprocess?

A.showospf

B.showiproute

C.showipprotocols

D.showipospfdatabase

E.Noneoftheotheralternativesapply

Answer:

C

12.Aproblemwasreportedthatthe10.10.10.0/24prefixwasnotinjectedintothelocalBGPtableonaPassGuiderouternamedPG1.Thefollowinginformationisavailablefromthisrouter:

PG1Configuration:

routerbgp65001network10.0.0.0neighbor172.16.1.1remote-as65002noauto-summaryRoutingtableinformation:

showiproute|include10O10.10.10.0/24[110/11]via192.168.1.1,2d00h,Ethernet0/0WhyisthisprefixnotinthelocalBGPtableofthePG1?

A.The172.16.1.1neighborisdown.

B.Theprefix10.10.10.0/24isnota'connected'route.

C.ThisrouteisnotaBGPlearnedroute.

D.Thenetworkcommandiswrong.

E.Noneoftheotheralternativesapply

Answer:

13.WhichIOScommandwouldyouenterifyouwantedtoviewalistofIBGPandEBGPneighborrelationshipsthatareconfigured?

A.showipbgp

B.showipbgppaths

C.showipbgppeers

D.showipbgpsummary

E.showipbgpprotocols

Answer:

14.PassGuidehasaBGPnetworkandaBGProuteof197.22.129.0/24thatshouldbepropagatedtoallofthedevices.Therouteiscurrentlynotinanyoftheroutingtables.ThePassGuideadministratordeterminesthatanaccesslististhecauseoftheproblem.Theadministratorchangestheaccesslisttoallowthisroute,buttheroutestilldoesnotappearinanyoftheroutingtables.Whatshouldbedonetopropagatethisroute?

A.Usetheservice-policycommandtoadjusttheQOSpolicytoallowtheroutetopropagate.

B.CleartheBGPsession.

C.UsethereleaseBGProutingcommand.

D.Changeboththeinboundandoutboundpolicyrelatedtothisroute.

E.Noneoftheotheralternativesapply

Answer:

15.ThePassGuidenetworkconsistsofaseriesofroutersthatareallconfiguredforIBGP.WhichoneofthefollowingIBGPcharacteristicsistrue?

A.TheIBGProutersmustalwaysbefullymeshed.

B.TheIBGProuterscanbeinadifferentAS.

C.TheIBGProutersmustbedirectlyconnected.

D.TheIBGProutersdonotneedtobedirectlyconnected.

E.Noneoftheotheralternativesapplyaretrue.

Answer:

16.ABGProuterisconfiguredasshownbelow:

interfaceethernet0

ipaddress10.10.10.1255.255.0.0

intserial0

ipaddress172.16.1.1255.255.255.252

routerbgp65001

neighbor192.168.1.1remote-as65002

Basedontheaboveconfiguration,whichofthefollowingBGPstatementswouldinjectthe10.10.0.0/16prefixintotheBGProutingtable?

A.network10.0.0.0

B.network10.10.0.0mask255.255.0.0

C.network10.10.10.1mask255.255.255.255

D.network10.10.10.0mask255.255.255.0

E.network10.0.0.0mask255.255.0.0

Answer:

17.RouterPG-1isconfiguredforBGProutingasshownbelow:

routerbgp65300network27.0.0.0neighbor192.23.1.1remote-as65300

FromtheperspectiveofrouterPG-1,whatkindofrouteristherouterwithIPaddress192.23.1.1?

A.ApeerrouterrunningIBGP

B.ApeerrouterrunningEBGP

C.AcommunitymemberrunningIBGP

D.ApeergroupmemberrunningIBGP

E.ApeergroupmemberrunningEBGP

Answer:

18.Whichthreeofthefollowingnetworkfeaturesaremethodsusedtoachievehighavailability?

（Selectallthatapply.）

A.SpanningTreeProtocol（STP）

B.Delayreduction

C.HotStandbyRoutingProtocol（HSRP）

D.Dynamicroutingprotocols

E.QualityofService（QoS）

F.Jittermanagement

Answer:

19.WhichofthefollowingcharacteristicsdescribetheBPDUGuardfeature?

（Chooseallthatapply.）

A.ABPDUGuardportshouldonlybeconfiguredonportswithPortFastenabled.

B.BPDUGuardandPortFastshouldnotbeenabledonthesameport.

C.BPDUGuardisusedtoensurethatsuperiorBPDUsarenotreceivedonaswitchport.

D.ABPDUGuardportreceivingaBPDUwillgointoerr-disablestate.

E.ABPDUGuardportreceivingaBPDUwillbedisabled.

F.BPDUGuardcanbeenabledonanyswitchport.

Answer:

20.Whichofthefollowingarevalidmodesofaccessingthedataplane?

（Chooseallthatapply.）

A.Serialconnection

B.SecureShell

C.RADIUS

D.SimpleNetworkManagementProtocol

E.HTTP

F.Telnet

Answer:

21.WhichofthefollowingisnotanessentialprerequisiteforAutoQoStobecorrectlyappliedtoaninterface?

（Chooseallthatapply.）

A.TheinterfacemustbeconfiguredasaMultilinkPPPinterface.

B.Thecorrectbandwidthshouldbeconfiguredontheinterface.

C.AQoSpolicymustnotbecurrentlyattachedtotheinterface.

D.CEFmustbeenabled.

E.AutoQoSmustbeenabledgloballybeforeitcanbeenabledontheinterface.

F.AnIPaddressmustbeconfiguredontheinterfaceifitsspeedisequaltoorlessthan768kbps.

Answer:

22.WhichofthefollowingtopologysituationswouldbeaqoodcandidateforconfiguringDMVPN?

A.ExtranetVPN

B.ManagedoverlayVPNtopology

C.Hub-and-spokeVPNtopology

D.Central-siteVPNtopology

E.FullmeshVPNtopology

F.Remote-accessVPNtopology

Answer:

23.Whichofthefollowingisnotconsideredacommonapproachtonarrowthefieldofpotentialproblemcauses?

（Choosethebestanswer.）

A.Followingthetrafficpath

B.Top-down

C.Comparingconfigurations