CCNA2 FINAL A+B+C套英文版.docx
- 文档编号:23519867
- 上传时间:2023-05-17
- 格式:DOCX
- 页数:83
- 大小:7.61MB
CCNA2 FINAL A+B+C套英文版.docx
《CCNA2 FINAL A+B+C套英文版.docx》由会员分享,可在线阅读,更多相关《CCNA2 FINAL A+B+C套英文版.docx(83页珍藏版)》请在冰豆网上搜索。
CCNA2FINALA+B+C套英文版
CCNA第二学期《FinalExaminnation》英文A卷
1Whataretwofunctionsofarouter?
(Choosetwo.)
Itforwardsdatapacketstowardtheirdestination.
ItforwardsthepackettothedestinationiftheTTLvalueis0.
ItchangesthedestinationIPaddressofdatapacketsbeforeforwardingthemtoanexitinterface.
ItdeterminesthebestpathbasedonthedestinationMACaddress.
ItactsasanintersectionbetweenmultipleIPnetworks.
2Whichroutercomponentcontainsascaled-downversionoftheIOSthatcanbeusedtoreloadacompleteversionoftheIOSintheeventthattheIOSbecomesdamagedorcorrupted?
ROM
Flash
SDRAM
NVRAM
3Usingdefaultsettings,whatisthenextstepintherouterbootsequenceaftertheIOSloadsfromflash?
PerformthePOSTroutine.
SearchforabackupIOSinROM.
LoadthebootstrapprogramfromROM.
Loadtherunning-configfilefromRAM.
Locateandloadthestartup-configfilefromNVRAM.
4
Refertotheexhibit.Howmanyroutesareultimateroutes?
3
4
5
7
5
Refertotheexhibit.Whichpathwilltrafficfromthe172.16.1.0/24networktaketogettothe10.0.0.0/24network?
ADC
ABC
ItwillloadbalancethetrafficbetweenADCandABC
ItwillsendthetrafficviaABC,andwilluseADCasabackuppathonlywhenABCfails.
6
Refertotheexhibit.RoutersR1andR3usedifferentroutingprotocolswithdefaultadministrativedistancevalues.Alldevicesareproperlyconfiguredandthedestinationnetworkisadvertisedbybothprotocols.
WhichpathwillbeusedtotransmitthedatapacketsfromPC1toPC2?
ThepacketswilltravelviaR2-R1.
ThepacketswilltravelviaR2-R3.
Thetrafficwillbeload-balancedbetweentwopaths—viaR2-R1andviaR2-R3.
ThepacketswilltravelviaR2-R3,andtheotherpathviaR2-R1willberetainedasthebackuppath.
7
Refertotheexhibit.ThenetworkisconfiguredforOSPFroutingwithdefaultsettings.Thebandwidthshavebeenconfiguredcorrectlyforeachlink.IftheT1linkbetweenrouterAandrouterEfails,whatpathwillapacketfromrouterAtaketoreachtheLANattachedtorouterFwhenthenetworkhasconverged?
A,B,C,F
A,B,C,E,F
A,D,G,E,F
A,D,G,H,F
8Inalabtestenvironment,arouterhaslearnedaboutnetwork172.16.1.0throughfourdifferentdynamicroutingprocesses.Whichroutewillbeusedtoreachthisnetwork?
D172.16.1.0/24[90/2195456]via192.168.200.1,00:
00:
09,Serial0/0/0
O172.16.1.0/24[110/1012]via192.168.200.1,00:
00:
22,Serial0/0/0
R172.16.1.0/24[120/1]via192.168.200.1,00:
00:
17,Serial0/0/0
I172.16.1.0/24[100/1192]via192.168.200.1,00:
00:
09,Serial0/0/0
9Whichtwostatementsaretrueforlink-stateroutingprotocols?
(Choosetwo.)
Routersthatrunalink-stateprotocolcanestablishacompletetopologyofthenetwork.
Routersinamultipointnetworkthatrunalink-stateprotocolcanexchangeroutingtables.
Routersuseonlyhopcountforroutingdecisions.
Theshortestpathfirstalgorithmisused.
Splithorizonisusedtoavoidroutingloops.
10
Refertotheexhibit.WhichoptionwillprovidetheconfigurationthatisneededforrouterR1todynamicallylearnroutestothe192.168.100.16/28,192.168.100.32/28,and192.168.100.48/28subnetworks?
withstaticroutes
witharoutedprotocol
witharoutingprotocol
withdirectlyconnectedroutes
11
Refertotheexhibit.Whatisthemeaningofthehighlightedvalue120?
Itisthemetricthatiscalculatedbytheroutingprotocol.
ItisthevaluethatisusedbytheDUALalgorithmtodeterminethebandwidthforthelink.
Itistheadministrativedistanceoftheroutingprotocol.
Itisthehold-downtime,measuredinseconds,beforethenextupdate.
12Whichstatementistrueaboutthemetricsusedbyroutingprotocols?
Ametricisavalueusedbyaparticularroutingprotocoltocomparepathstoremotenetworks.
Acommonmetricisusedbyallroutingprotocols.
Themetricwiththehighestvalueisinstalledintheroutingtable.
Theroutermayuseonlyoneparameteratatimetocalculatethemetric.
13Whichroutingprotocolbydefaultusesbandwidthanddelaytocalculatethemetricofaroute?
RIPv1
RIPv2
OSPF
EIGRP
14Whichthreeroutingmetricsarecorrectlydefined?
(Choosethree.)
delay-thelinkspeed
reliability-theerrorrateonalink
load-theamountoftrafficonalink
cost-thevaluetoindicatepreferenceforaroute
hopcount-thepathselectedwiththehighestbandwidth
bandwidth-theamountoftimeittakesapackettotravelalink
15Whichtwostatementsaboutroutingprotocolsareaccurate?
(Choosetwo.)
OSPFsupportsVLSM.
RIPv1supportsVLSM.
RIPv2doesnothaveahopcountlimit.
EIGRPsupportsdiscontiguousnetworkdesigns.
RIPv2doesnotsupportdiscontiguousnetworkdesigns.
16
Refertotheexhibit.AdeviceisrequiredtocompletetheconnectionbetweenrouterR1andtheWAN.Whichtwodevicescanbeusedforthis?
(Choosetwo.)
aCSU/DSUdevice
amodem
anEthernetswitch
ahub
abridge
17Whenconnectingtwodevices,whichsituationwouldnormallyrequiretheuseofacrossovercable?
connectingahosttoaswitch
connectingaswitchtoarouter
connectingaswitchtoaswitch
connectingahosttoarouterconsoleport
18
Refertotheexhibit.Anetworkadministratorhasruntheshowinterfacecommand.Theoutputofthiscommandisdisplayed.Whatisthefirststepthatisrequiredtomakethisinterfaceoperational?
Switchthecablewithaknownworkingcable.
Issuethenoshutdowncommandontheinterface.
Configuretheinterfaceasaloopbackinterface.
Settheencapsulationfortheinterface.
19Whichportshouldaterminalemulatorbeconnectedtoinordertoaccessarouterwithoutnetworkconnectivity?
T1
serial
console
FastEthernet
20Whichroutermodeisaccessedbyenteringtheenablecommand?
userEXEC
privilegedEXEC
globalconfiguration
interfaceconfiguration
21
Refertotheexhibit.WhenastaticIPaddressisbeingconfiguredonthehost,whataddressshouldbeusedforthedefaultgateway?
10.1.1.1
10.1.1.2
172.16.1.1
192.168.1.1
22
Refertotheexhibit.Theshowcdpneighborscommandwasrunononeofthedevicesasshown.Basedonthisinformation,whichtwofactscanbedetermined?
(Choosetwo.)
Thecommandwasrunontherouter.
ABCDisanon-CISCOdevice.
Layer3connectivitybetweentwodevicesexists.
ABCDsupportsroutingcapability.
ABCDisconnectedtotheFa0/0interfaceoftheneighboringdevice.
23
Refertotheexhibit.WhichstatementistrueabouttheEthernetinterfacesshowninthenetwork?
AframeleavesinterfaceFa0/0ofR1withthesourceMACaddressas000C.3010.9260.
Hostson10.1.1.0/24willuse172.16.3.1/24astheirdefaultgateway.
ApacketwillnotbeforwardedbetweenR1andR2untilthenoshutdowncommandisissuedontheFa0/0interfaceofR1.
TheFa0/0interfaceofR2couldbeconfiguredwiththeIPaddress172.16.4.1/24andstillhaveconnectivityonthislink.
24
Refertotheexhibit.WhichsolutionprovidesthemostefficientuseofrouterresourcesforforwardingtrafficbetweenBRandHQ?
RIP
RIPv2
EIGRP
staticroutes
25
Refertotheexhibit.PingsarefailingbetweenHostAandHostB.ThenetworkadministratordiscoversthatRouter1doesnothavearoutetothe172.16.0.0network.AssumingRouter2isconfiguredcorrectly,whichtwostaticroutescouldbeconfiguredonRouter1toenableHostAtoreachnetwork172.16.0.0?
(Choosetwo.)
iproute172.16.0.0255.255.0.0S0/0
iproute172.16.0.0255.255.0.0S0/1
iproute172.16.0.0255.255.0.0192.168.0.1
iproute172.16.0.0255.255.0.0192.168.0.2
iproute192.168.0.1172.16.0.0255.255.0.0S0/0
iproute192.168.0.1172.16.0.0255.255.0.0S0/1
26
Refertotheexhibit.HowwastheOSPFdefaultgatewayentryforR2determined?
DefaultroutesareautomaticallyinjectedbyOSPFintoalladvertisements.
AstaticdefaultgatewayrouteisdefinedintheconfigurationofR2.
Thedefault-informationoriginatecommandisappliedonR1.
TheISPdefinesthegatewayoflastresortandautomaticallypassesittoR1andR2.
Theipdefault-gatewaycommandisappliedonR2.
27
Refertotheexhibit.Onthebasisoftheshowrunning-configoutput,whichoptioncorrectlyreflectstheroutesthatwillbelistedintheR2routingtable?
答案:
D
28
Refertotheexhibit.AnetworkadministratorconfiguresastaticrouteonrouterR1toreachthe192.168.1.0/24network.WhichIPaddressshouldbeusedasthenext-hopaddressintheiproutecommand?
192.168.1.1
192.168.2.1
192.135.250.1
192.135.250.2
29Becauseofatopologychange,thenexthopIPaddressinthecurrentstaticroutemustbereconfigured.Howcanastaticrouteentrybealteredtoaccommodateatopologychange?
KeeptheexistingstaticrouteandconfigureanewstaticroutewiththecorrectnexthopIPaddress.
NegatetheexistingstaticrouteandconfigureanewstaticroutewiththecorrectnexthopIPaddress.
Donothing.TheexistingstaticroutewillautomaticallyupdatethenexthopentrywiththenewIPaddress.
Keeptheexistingstaticroute,reloadtherouter,andconfigureanewstaticroutewiththecorrectnexthopIPaddress.
30
Refertotheexhibit.Theentire192.168.1.0networkhasbeenallocatedtoaddresshostsinthediagram.UtilizingVLSMwithcontiguousaddressblocks,whichsetofaddressesandprefixescouldbeusedtocreateanaddressingsolutionwithaminimumwasteofIPaddresses?
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- CCNA2 FINAL A+B+C套英文版 英文