CCNA新题.docx
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CCNA新题
200.ATCP/IPtransferisdiagrammedintheexhibit.
Awindowsizeofthreehasbeennegotiatedforthistransfer.WhichmessagewillbereturnedfromthereceivertothesenderaspartofthisTCP/IPtransfer?
A.sendACK1-3
B.sendACK3
C.sendACK4
D.sendACK4-6
E.sendACK6
F.sendACK7
Answer:
C
解释一下:
201.Threeaccesspointshavebeeninstalledandconfiguredtocoverasmalloffice.Whattermdefinesthewirelesstopology?
A.BSS
B.IBSS
C.ESS
D.SSID
Answer:
C
解释一下:
202.Refertotheexhibit.WhichtwostatementsaretrueoftheinterfacesonSwitch1?
(Choosetow).
A.MultipledevicesareconnecteddirectlytoFastEthernet0/1.
B.AhubisconnecteddirectlytoFastEthernet0/5.
C.FastEthernet0/1isconnectedtoahostwithmultiplenetworkinterfacecards.
D.FastEthernet0/5hasstaticallyassignedMACaddresses.
E.FastEthernet0/1isconfiguredasatrunklink.
F.InterfaceFastEthernet0/2hasbeendisabled.
Answer:
BE
解释一下:
203.Refertotheexhibit.ThespeedofallseriallinksisE1andthespeedofallEthernetlinksis100Mb/s.AstaticroutewillbeestablishedontheManchesterroutertodirecttraffictowardtheInternetoverthemostdirectpathavailable.WhatconfigurationontheManchesterrouterwillestablisharoutetowardtheInternetfortrafficthatoriginatesfromworkstationsontheManchesterLAN?
A.iproute0.0.0.0255.255.255.0172.16.100.2
B.iproute0.0.0.00.0.0.0128.107.1.1
C.iproute0.0.0.0255.255.255.252128.107.1.1
D.iproute0.0.0.00.0.0.0172.16.100.1
E.iproute0.0.0.00.0.0.0172.16.100.2
F.iproute0.0.0.0255.255.255.255172.16.100.2
Answer:
E
解释一下:
204.Refertotheexhibit.Anorganizationconnectstwolocations,supportingtwoVLANs,throughtwoswitchesasshown.Inter-VLANcommunicationisnotrequired.Thenetworkisworkingproperlyandthereisfullconnectivity.TheorganizationneedstoaddadditionalVLANs,soithasbeendecidedtoimplementVTP.BothswitchesareconfiguredasVTPserversinthesameVTPdomain.VLANsaddedtoSwitch1arenotlearnedbySwitch2.Basedonthisinformationandthepartialconfigurationsintheexhibit,whatistheproblem?
A.Switch2shouldbeconfiguredasaVTPclient.
B.VTPisCiscoproprietaryandrequiresadifferenttrunkingencapsulation.
C.ArouterisrequiredtorouteVTPadvertisementsbetweentheswitches.
D.STPhasblockedoneofthelinksbetweentheswitches,limitingconnectivity.
E.Thelinksbetweentheswitchesareaccesslinks.
Answer:
E
解释一下:
205.Refertotheexhibit.WhattworesultswouldoccurifthehubweretobereplacedwithaswitchthatisconfiguredwithoneEthernetVLAN?
(Choosetwo.)
A.Thenumberofcollisiondomainswouldremainthesame.
B.Thenumberofcollisiondomainswoulddecrease.
C.Thenumberofcollisiondomainswouldincrease.
D.Thenumberofbroadcastdomainswouldremainthesame.
E.Thenumberofbroadcastdomainswoulddecrease.
F.Thenumberofbroadcastdomainswouldincrease.
Answer:
CD
解释一下:
206.REFERTOTHEEXHIBIT.Router4canpingRouter5(172.16.6.5),butnotRouter7(172.16.11.7).Therearenoroutingprotocolsrunninginanyoftherouter,andRouter4hasRouter6asitsdefaultgateway.Whatcanbedonetoaddressthisproblem?
A.ConverttostaticNAT.
B.ConverttodynamicNAT.
C.AddastaticrouteinRouter7backtoRouter4.
D.ChangetheinsideandoutsideNATcommands.
Answer:
C
解释一下:
207.WhichtwostatementsdescribetheCiscoimplementationofVLANs?
(Choosetwo)
A.VLAN1isthedefaultEthernetVLAN.
B.CDPadvertisementsareonlysentonVLAN1002.
C.Bydefault,theswitchIPaddressisinVLAN1005.
D.VLANs1002through1005areautomaticallycreatedandcannotbedeleted.
Answer:
AD
解释一下:
208.HowdoesaDHCPserverdynamicallyassignIPaddressestohosts?
A.Addressesarepermanentlyassignedsothatthehostusesthesameaddressatalltimes.
B.Addressesareassignedforafixedperiodoftime.Attheendoftheperiod,anewrequestforanaddressmustbemade,andanotheraddressisthenassigned.
C.Addressesareleasedtohosts.AhostwillusuallykeepthesameaddressbyperiodicallycontactingtheDHCPservertorenewthelease.
D.Addressesareallocatedafteranegotiationbetweentheserverandthehosttodeterminethelengthoftheagreement.
Answer:
C
解释一下:
209.WhatisthepurposeoftheCiscoVLANTrunkingProtocol?
A.toallowtraffictobecarriedfrommultipleVLANsoverasinglelinkbetweenswitches
B.toallownativeVLANinformationtobecarriedoveratrunklink
C.toallowformanagingtheadditions,deletions,andchangesofVLANsbetweenswitches
D.toprovideamechanismtomanuallyassignVLANmembershiptoswitchports
E.toprovideamechanismtodynamicallyassignVLANmembershiptoswitchports
Answer:
C
解释一下:
210.Refertotheexhibit.Whatstatementistrueoftheconfigurationforthisnetwork?
A.Theconfigurationthatisshownprovidesinadequateoutsideaddressspacefortranslationofthenumberofinsideaddressesthataresupported.
B.BecauseoftheaddressingoninterfaceFasEthernet0/1,theSerial0/0interfaceaddresswillnotsupporttheNATconfigurationasshown.
C.Thenumber1referredtointheipnatinsidesourcecommandreferencesaccess-listnumber1.
D.ExtemalRoutermustbeconfiguredwithstaticroutestonetworks172.16.1.0/24and172.16.2.0/24
Answer:
C
解释一下:
211.
解释一下:
212.Refertotheexhibit.Theswitchesonacampusnetworkhavebeeninterconnectedasshown.AlloftheswitchesarerunningSpanningTreeProtocolwithitsdefaultsettings.UnusualtrafficpatternsareobservedanditisdiscoveredthatSwitch9istherootbridge.WhichchangewillensurethatSwitch1willbeselectedastherootbridgeinsteadofSwitch9?
解释一下:
213.
解释一下:
214.Refertotheexhibit.Thenetworkmanagerisevaluatingtheefficiencyofthecurrentnetworkdesign.RIPv2isenabledonallLayer3devicesinthenetwork.WhatnetworkdevicesparticipateinpassingtrafficfromthePCat10.10.1.7toFileServerat10.20.1.6intheorderthattheywillforwardtrafficfromsourcetodestination?
解释一下:
215.