ccna考试题库完美注释版ccna640-802v104

1、EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.tyouareinivi;WhenyouareloaitwhichpromptinEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.tyouareinivi;WhenyouareloaitwhichpromptintA. $#X RGGU XKI;WfaomX RGGU XKI令是show ;CiscoCatalystichCAT1andCAT2hav

2、eaconnectionnthemingportsF1An802.trunkiscnfigrednthetwoichOnCAT1,VLAN10ischosenasnative,butonCAT2tiveVLANisnotcf.W il hisA. 802.1Qgiantsfmculd saturatetheVLAN10onCAT1andVLAN1onCAT2ilsenduntaggedAnativeVLANmmerrormessageilVLAN10onCAT1andVLAN1onCAT2ilsendtaggedX RGGU XKI如果两边niv不匹配的话.ih将报iv不匹;Wdoldcorr

3、ectlyfaserialportonarouteriththelastalhostRouter(config-Router(config-EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.Answer:2/29它的块大小为8掩码为48地址范围为2-QUESTION The networkflEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.Answer:2/29它的块大小为8掩码为48地址范围为2-

4、QUESTION The networkflgatewayapplyingtoa host byDHCP is3/28. WoptionisthevalidIP addressofthishost?010 全1时和为Answer:3/28所在网段的范围是2- QUESTION Wtoaddressescanbeaigedtoahost186.54.0000 0011.000055网络号是55 网络号是 网络号是Answer: BD QUESTION ThenetworkminiahasaskedyoutochecktheusoftheionsIPstackiackaddress. Waddre

5、ssold toperformthisAnswer:考点：使来检测主机的IP栈实现EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.0001QUESTION W ionA hasbeenianIPaddressof 4/28.W ionBhasbeenianEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.0001QUESTION W ionA hasbeenianIPaddressof 4/28.W

6、 ionBhasbeenianaddress of00/28. Thetworks ions are connected straight-through al Attempts sful.Wttwothingscanbedonetoallowmmcon0110A. Replace the straight-through lcrossover ChangetheaddressofWorks ionAtoChangetheaddressofWorks ionBtoAnswer:考点：同构设备使用交叉线，两端的IP需要在同QUESTION YourISPhasgivenyoutheaddress

7、/29toaitoyourerface.Theyhavegivenyouthedfaltgatewayaddressof.Afteryouhavecfirtheaddress,therouterualeany remotev.W isevitherouterinremotev?A. ThedfaltgatewayisnotanaddressonTheflgatewayisthebroadcast addressforTheIPaddressisthebroadcastaddressforTheIPaddressisanivclassDmuticatAnswer: B /29所在网段的范围-QU

8、ESTION Wdisusedtocopythecnfigrationfoorunning-config startup-startup-config: running-startup write Answer:QUESTION WdisusedtolodaofgfaTFTPserverandmergethefoEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.running-config:T: running-config T: startup-config startup-config: TF

9、TP:Answer:EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.running-config:T: running-config T: startup-config startup-config: TFTP:Answer:QUESTION AsystemmitypestchangeWAnswer: B nfistartup-fi保存在NVRAMQUESTION Wdisusedtocofigreafl 22525 255.255 00. Answer:QUESTION IfIProuting

10、isenabled,which(Choosedssetthegatewayoflastresorttothefldefault-gateway 也可以配置网关，在禁用了ip routeringroutedefault-network default-route route Answer: CE ipfl-network iprouteEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.QUESTION toldallowyoutoviWdoldyouEditedbyFoxitCopyright(C)

11、byFoxitCorporation,2005-2010 For Evaluation Only.QUESTION toldallowyoutoviWdoldyoufgloballyonaCiscoconnectedCiscov?A.enable Answer:QUESTION Wshow ip show route trace ip routeAnswer: QUESTION Wdisusedtodebugipicmp Answer:调用了ic协议，而ic数据包封装在ip包QUESTION WddisplaysCPUlisAnswer: B EditedbyFoxitCopyright(C)

12、byFoxitCorporation,2005-2010 For Evaluation Only.;Whencfraerfaceonarouter,whatistheflframe-EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.;Whencfraerfaceonarouter,whatistheflframe-llX RGGU XKI;Wtmbesetcorrectlywhenofrabest计t higher-level protocolscalculate oillD.X RGGU XKI

13、为了;Acompanymmnetwork ldown, andthe conferencing overIP onthirEthernetLA. Theusersteither stuttersorfailsy.Wisthemotlikelyreason mimmcellratequalityof ervice(QoS) mltionpacketitcingexchangeE. ritransportprotocolX RGGU XKI;WlheOSIreferenceisepilfortrmintheavlilt of theviprogramandcheckingtoseeifenough

14、xtmC.D. E.YX EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.QUESTION nthe sourceanddestination. Thequality of ervicerequestedbythelransferEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.QUESTION nthe sourceanddestination. Thequality of ervicereque

15、stedbythelransferisloheOSIreferenceisnotbeingained.Tofixthise,atwhichlshouldoli sgiA.iaAnswer:QUESTION 24andarerepilforhenetworklayroftheOSIreferenceWprotocolsaremiiandtrafficithinAnswer:QUESTION drevelsthelastmehodusedWrunning-Answer:QUESTION WthreetioarevalidWANconctivitymethods?(ChooseEditedbyFox

16、itCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.F.X RGGU EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.F.X RGGU XKI;Rfertotheexhibit.WWANprotocolisbeinglX RGGU XKIMI;WtisthedifferencenaCSU/DSUandaA.ACSU/DSUogigalsfoaroutertoaleedline;amodemogigfromarouterto

17、aleACSU/DSUogigfromaroutertoaphoneline;amodemconvertsdigitaligfromaroutertoaleA CSU/DSUconvertsdigital igfrom arouter toa phoneline; amodem converts faroutertoaphoneline.ogigACSU/DSUconvertsdigitaligalsfromaroutertoaleeline;amodemconvertsdigitaligfaroutertoaphoneline.X RGGU XKI;Anetworkmiirmutfi200w

18、itchportstoaccepttrafficfonlythecurrently接受 EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.hostv直.WtoldbethemotefficientwaytocfMAC-levelsecurityonalltheseA. illverifyEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.hostv直.Wtoldbethemotefficientwayt

19、ocfMAC-levelsecurityonalltheseA. illverifytheMACaddressesandnet totheitcetoentertheir-portmac-B. Haveendusers mac-thirMACaddresses. nettothesitchtoentertheitchprt-portC. Usetheihrport-securityMACaddressdonallthewitchvevconnectedto mieteditheachportandenterdsoneachitchforMACaddressport-X RGGU XKI;Whe

20、ntoliaFramelaconnection, hat isstepwhenperformingaackA. SettheencapsulationoferfacetoD.PlacetheCSU/DSUinlocal-loopEnablelocal-loopmodeontheDCEFrameRlayttheencapsulationissettoFramelX RGGU XKIA：讲接口配置成HDLC，正确，FR封装下无法正常ping自己端;WRly AllTCPtrafficismarkeddiscardeAllUDPtrafficismarkeddiscardelibandaAll TC

21、PtrafficismarkeddiscardelibandaAlltrafficexceedingtheCIRismarkeddiscardX RGGU XKI;WtaretocharacteristicsofFrameelypo -to-sub ?(ChooseA. Theycreatesplit-horizonB. Theyrequireauniquesubnetithina.C. Theyeasedli D. Theyareidalforfull-meshoE. TheyrequiretheuseofNBMAoptionswhenuingEditedbyFoxitCopyright(C

22、)byFoxitCorporation,2005-2010 For Evaluation Only.X RGGU XKI;EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.X RGGU XKI;Rferto theexhibit. Addressesherange/24arenot bitletothe range.Wdshowsif /24areallowediidebugips-ipnatip nat X RGGU XKI那条命令可以看到/24是否在允许转;Airelesntcanno an8

23、02.11b/gBSSb/girelesscard. Thentsectionof doesnotlistany ctiveWLANsnts.Wissiblereasonfor Theirhaiscofigredonthec ThentsIPaddressisonthewrongnsanircpre-sharediscofigred incretly on the X RGGU XKI ;Wtofeaturesv1addtoaddresstheinerntweaknessesfound?(ChooseEditedbyFoxitCopyright(C)byFoxitCorporation,200

24、5-2010 For Evaluation Only.astrongerencryptionkeymixiguingtmraEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.astrongerencryptionkeymixiguingtmraashorterinitializationperfmesequenceX RGGU XKI考点 ;WtoirelesencryptionmethodsarebasedontheRC4encryptionalgorithm?(ChooseTKIP X RGG

25、U XKI;Wt areto characteristicsof RIPv2?(Chooseclassful routing variable-lengthsubnet C.broadcastiD. maualroutemmiE. usesSPFalgorithmtocomputeTX RGGU XKIE:使用spf算法计算路径;WtoEthernetfopticpportofn550A. 1000BASE-EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.X EditedbyFoxitCopyr

26、ight(C)byFoxitCorporation,2005-2010 For Evaluation Only.X RGGU XKI;Wttwothingsillarouterdowhenrunningadistancevectorroutingrol(ChooseSendpiiupdatesregardlessoftopologySendentireroutingltoallhe.lgorithmtothetrmibestpath. STPasedonupdatesfromtheirUsetheshortest-Updatetheroutingaheoloftheentirenetworki

27、nitsX RGGU XKI;Rfertotheexhibit.AccordingtotheroutingtlwhereiltheroutersendapacketinX RGGU XKIEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.;WdshowsifanslistisaigedtoshowshowEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.;Wdshowsifanslistisaiged

28、toshowshowipshowshowiperface erfaceerface s- s-listsX RGGU XKI;Rfertotheexhibit.WruledoestheDHCPserverusewhenthereisanIP?tiltheco lictisresolve A. TheaddressisremovedfromtheB. TheaddresshetilisC. OnlytheIPdetectedbyGratuitousARPisremovedfthel.D. OnlytheIPdetectedisremovedfromthepol.E. TheIPilbeshown

29、,evenafterthelcisresovX RGGU XKIshowip命令可以查看哪些ip地址在使用上。有解:，错误E：;Rfertotheexhibit.YouareconnectedtotherouterasuserMike.WdallowsyoutoEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.A.terminal isX VEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.A.ter

30、minal isX VGGZU LXD:查看启用了ospf的接口的相;frtotheexhibit.Ifnumber2faivectedfromthesetupscript,ppenswhentheuserrunsSetupisitiveandanychangesibeaddedtotheconfigSetupeffectively startsthefrtoverasif therouterwasbootedforSetupillnotrunifanealesecretpasswordxisontheimD. Setupillnotrun,becauseitisonlyvibwhennofa

31、texitsontheX RGGU XKI，设 不 运 ;Rferto theexhibit. W (config-beadvertisedbydilalthenetwork representedonerfaceA.redistribute network EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.C.redistribute network EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only

32、.C.redistribute network X RGGU XKI;Rfertotheexhibit.WfrtcanbegatheredfromtheA. OnerouterisrniRIPC.Thenetworkcontainsalo.D. Networkisrecbl.X RGGU XKI由图中可以看出本地已经存在这条;Rfertotheexhibit.WtypeofconnectionoldbesupportedbythecalediagramPCtoPCtoiservertoroutertoEditedbyFoxitCopyright(C)byFoxitCorporation,200

33、5-2010 For Evaluation Only.Answer:EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.Answer:QUESTION Rfertotheexhibit.WtypeofconnectionoldbesupportedbythecalediagramPCtoPCtoiservertoitchtoAnswer:QUESTION WtoementsdescribetheCiscomem ionofVLANs?(ChooseVLAN1istheflEthernetCDPadv

34、ertisementsarelysentonVLANBydfalt,themameVLANisVLANByflthesitchIPaddressisinVLANlAnswer:考点：考查vl知识v，v，vlvli网络的vl号v，vlvv ：vl-vlQUESTION Rfertotheexhibit.WcanbetrmiabouttherouterfromtheconsoleEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.NofrtoEditedbyFoxitCopyright(C)byFoxi

35、tCorporation,2005-2010 For Evaluation Only.NofrtofilewasfoundinNoftofilewasfoundinC. NocofigrationfilewasheD. fiifileisnormalandillodin15X RGGU XKI保存在NVRAM;Rfertotheexhibit.Wcanbeemifromtheislltotherouislocltotheilageoutinlthan1mehasagedoutandismarkedfordltiX RGGU XKI;Rfertotheexhibit. Wdoldallowthe

36、talitobecreatedontheEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.pool mynatsEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.pool mynats 54 prefix-length outside mynats 54 prefix-length pool mynats 54 prefix-length outside mynats 54 prefix-1X RGG

37、U XKIprefix-length 表示掩码的长度。prefix-length 19表示掩码为255.25;Rfertotheexhibit.Anitashown.AtwhichOSIlisthestheflgatewayat andseestheoutputdatalinklapplicationlslD.E. networklrX RGGU XKI调用不通是网络层的原因。;Rfertotheexhibit.Wvalueil beofigrforfl Gatewayof thec AreaEditedbyFoxitCopyright(C)byFoxitEditedbyFoxitCopyri

38、ght(C)byFoxitCorporation,2005-2010 For Evaluation Only.X RGGU XKI-54里面除了49外任意一;Rfertotheexhibit.TheuseratWk ionBviW ionBfromeciServertServerAcannotbereached.WEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.TheIPEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evalu

39、ation Only.TheIPaddressforServerAisabroadcastTheIPaddressforW ionBisasubnetThegatewayforWorks ionBisnotonthesameX RGGU XKI4/27所在网络范围为：-31/27。很明显网关3不再;Rfertotheexhibit.Wdoesthe(*)A. PacketiseiforaerfacetothePacketwastranlate,butnoresponsewasreceivedfromthedistantviPacketwasnottranslated,becausenoaiti

40、lportsarevlPacketwastaltandfastitchetotheX RGGU XKI由图中提示信息可以看出，源为已经有个一个转换，所以后续的数据包快速转发。;Rfertotheexhibit.WdsequencewillenablePATfromtheiidtootidEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.(config)(config)ip natpoolisp-netnetmaskEditedbyFoxitCopyright(C)byFoxitCorporatio

41、n,2005-2010 For Evaluation Only.(config)(config)ip natpoolisp-netnetmaskipnatoutsidenatinsidesourcelist ipnatinsideerfaceethernet1TX VGGZU LX;Rfertotheexhibit.WilhappentoHTTPtrafficmfotisin0if thetrafficissedbythisernet的地址不可能是的，是私有Trafficillbedroppedperlie30oftheTrafficwillbeacceptedperlie40oftheC.

42、Trafficibedropped,becauseoftheimcdenyalloftheD. Trafficillbeaccepted,becausethesourceaddressisnotcoveredbytheX RGGU XKI;Rferto theexhibit. W ement describesthet theRouter1ftihasonvthesubnetwhentheytrytoconnecttoSVR-AinetorEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.vvvv

43、illnotbealetonetoriEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.vvvvillnotbealetonetoribealetouseSSH,butillbealetoilbealtonet,butnotnetandX RGGU XKIf0/1 应该是out方向 也就是从左到右的数通过看出list 100 为fa0/0的i方而list101 是f0/1的in方向 所以172网段不会生生效的是list 只要看list 100 就可以可以;Wt arethreeadvantages

44、of VLANs?(ChoosethreeVlan的3个优势是什么A. VLANsestablishsinitheVLANsutilize packet filteringtoenhancenetworkVLANsvamethodofrviIPaddressesinlareD. VLANsovalo-ernetworking alternative to routed E. VLANslstonetworkvbasedon department, notphyical ltiF. VLANscanyimpifyaimvi,orchninghostsontheX RGGU XKIB：利用VLAN

45、的数EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.E：vl允许基于逻辑划分的网QUESTION AnaEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.E：vl允许基于逻辑划分的网QUESTION AnamiioldliketocfawitchoveravirtualmconnectionfltiooftheloclLAN.Woftheflarerequiredinorderforthesitch

46、tobeconfigredfromaremote lio(Choose two.)TheiTheiTheiustbeconfigrednIPaddress,subnetmakanddfaltustbeconnectedtoarouteroveraVLANustbeealthroughaportconnectedtoitsmmD. ThesitchconsoleportmutbeconnectedtotheEthernetTheiTheiaameVLANmutbecreatedandhaveamembrhipustbefullyfeasanSNMPeastonewitchAnswer:QUEST

47、ION Wof theflohostaddressesaremembrsofnetworks thatcanberoutedacrosstheernet?(ChooseAnswer: CEF /8- /16-172.31.2 /24-192.168.2 5.25 除了上面的外都是公有IPQUESTION Givenasubnetmaskof 24, whichof thefladdressescanbeasigedto主机位全为Answer:EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.QUE

48、STION Wof thefllarebnfiof VLANs?EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.QUESTION Wof thefllarebnfiof VLANs?(ChooseA. TheyinrtheizeofB. TheyallowloicalofusersbyTheycanenhancenetworkTheyirtheizofTheyirthenmbrof Theyimplifyitch mitshiledreinthenumberofsildreitheizeofth

49、eAnswer: BCE vlQUESTION WrouterdscanbeusedtoruleLANivtproblems?(ChoosefshowipifF. Answer: ADF QUESTION Rfertotheexhibit.AftersHostB,whichentryilheARPcacheofosupport?EditedbyFoxitCopyright(C)byFoxitEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.X RGGU XKIMAC作为source gateway

50、的mac作为tintio封装Frame，然后将Frame转发出去 ，但是数据包是不会进;EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.WtolEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.Wtolieareuingthecorrecttypeoftitpairal(ChooseX RGGU XKI缆相同设备用crossover不同设备用cut-thought线缆。console使用的事roll

51、or;Wof thefllaretruerearingbridgesandith(ChooseA. BridgesarenitchbecausetheyhaveAitchisamtBridgesandichlMACaddressesbyxmithesourceMACaddressofeachframe vAbridgeillforwardabroadcastbutasitchillE. Bridgesanditheirtheizeofa.X RGGU XKIEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation

52、Only.QUESTION Wtaresomeoftheadvantagesofuingaroutertoegmetthenetwork?(ChooseEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.QUESTION Wtaresomeoftheadvantagesofuingaroutertoegmetthenetwork?(ChooseilrcanoccurbasedonLayer3fimeC. RoutersllycostnceE. diaroutertothenetworkdecreas

53、esAnswer:E:增加路由器后减少延迟。错误。QUESTION Wofthefolementsaretruerearingbridgesandch(ChooseiceareprimarilysoftwarebasedridgesarehardwareBothbridgesanditchforwardLayer2C. BridgesarefrequentlynteD. iehaveahighernumberofnmotbE. Bridgesfshl itcef F. BothbridgesandihemakefrrinsbasedonLayer2Answer:，网桥 于 件，错 。都是基于硬

54、F:基于二层地址转发数据。正QUESTION Wcharacteristicsare iveofalink-eroutingrol(Chooseprvidscommonviwofentirelexchangesroutingtlithutilizesevent-triggered utilizesfrequentperiodicAnswer:A:提供查看令，正确。show pf EditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only. EditedbyFoxitCopyright(C)byFoxitCo

55、rporation,2005-2010 For Evaluation Only. ;Wof thefllementsdescribethenetworkhegric(ChooseTherearefourTherearesixTherearefourTherearevThereareseven she network. henetwork. he networkheX RGGU XKI域;Usetheoutputfromtherouter(ChoosehegrpicabovetoderiwhichoftheflareEditedbyFoxitCopyright(C)byFoxitCorporat

56、ion,2005-2010 For Evaluation Only.A. RouterJohnusesEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.A. RouterJohnusesalink-eroutingRouterJohnilreceiveroutingupdatesontheil/inter RouterJohnilreceiveroutingupdatesontheeia0/iRouterJohnil sendroutingupdatesouttheSerial0/0 iE. Ro

57、uterJohnillsendroutingupdatesoutF. RouterJohnilsendroutingupdatesouttheilX RGGU XKI由图中几处画红线的地方可知只有 s0/0发送;AnationalretailchainneedstodiganIPpanyneedsamumof50hostaddressesperWnitonlyoneClas Baddress, whichof thefolsubnetmasksisupportanappropriate addringscheme? (Choose two.)X RGGU XKI EditedbyFoxitCo

58、pyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.QUESTION Giventheaddress9/28,whichofthefolloigareEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.QUESTION Giventheaddress9/28,whichofthefolloigarevalidhostaddresseson(ChooseAnswer:9/28所属网段的范围是：6-QUESTION Aninonssbee

59、ncofionaerfacetodenypacketentryforTCPandports21,23and25.WttypesofpacketslbermttbythisACL?(ChooseAnswer:A：FTP 21C：SMTP25端口 D：DNS 53端口 E：HTTP 80端口 FPOP3110QUESTION WiiralefrAnswer: BCD 有三种方式建立trunk链iraeQUESTION OSPFroutingusestheconceptofareas.WtarethecharacteristicsofOSPFareas?(ChooseA.EachOSPFareare

60、quiresaerfacetobeEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.Areasmaybeaigedanynmbrfrom0toAreaEditedbyFoxitCopyright(C)byFoxitCorporation,2005-2010 For Evaluation Only.Areasmaybeaigedanynmbrfrom0toArea0isllthebackboneaciOSPFnetworksdonotrequiremlMultipleOSPFareasmutconn