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1)Whatwerethetwochallengesofcreatinganetworkmodel(Selecttwo)

(创建网络模型所遇到的两个挑战是什么(选择2个))?

A.interconnectivity

B.interaction

C.internetworking

D.interoperability

A,Do互通性和互操作性创建网络模型的挑战。

2)TheAdvancedResearchProjectsAgencycreatedwhatnetwork(高级研究

计划局(ARPA)

创建了什么网络)?

A.Ethernet

B.FDDI

C.ARPANET

D.TokenRing

C。ARPANET由DARPA项目创建。

3)WhatdoesOSIstandfor(OSI代表什么)?

A.OrganizationforStandardsInstitute

B.OrganizationforInternetStandards

C.OpenStandardsInstitute

D.OpenSystemsInterconnection

Do0SI代表开放系统互连。

4)WhatarethelayersoftheOSIreferencemodel,inorder(OSI参考

模型有哪些层,按顺序

回答)?

A.application,transport,network,physical

B.application,presentation,session,network,transport,datalink,

physical

C.application,presentation,session,transport,network,datalink,

physical

D.application,session,transport,physical

5)Whatisthetermforwrappingadataunitwithaheaderandpassing

ittothenextprotocol

(用报头包装一个数据信元并传递到下一个协议,代表这个过程的术语是什么)?

A.Windowing

B.Encapsulation

C.Wrapping

D.Heading

6)WhichofthefollowingisnotdefinedatthephysicallayeroftheOSI

referencemodel(在

0SI参考模型的物理层中没有定义下面的哪一个)?

A.hardwareaddresses

B.bitstreamtransmission

C.voltagelevels

D.physicalinterface

7)Whichstandardsinstitutecreatedthe802seriesofphysical/datalink

layerstandards(哪个标准协会创建了物理/数据链路层标准的802系列)?

A.ANSI

B.DIX

C.ITU-T

D.IEEE

8)WhocreatedEthernet(谁创建了Ethernet)?

A.ANSI

B.DIX

C.ITU-T

D.IEEE

9)WhatisthefunctionofCSMA/CD(CSMA/CD的功能是什么)?

A.Itpassesatokenaroundastartopology

B.Nodesaccessthenetworkandretransmitiftheydetectacollision

C.Nodesconnecttoadualringoffiber-opticsanduseatoken-passing

scheme

D.Nodesbreaktheframesintotinycellsandforwardthemthrougha

cell-switchingnetwork.

10)Whatisabackoffalgorithm?(什么是补偿算法)?

A.ItisthefaulttolerancecalculationforFDDI

B.Itisaroutingcalculationfordeterminingthebestroute

C.Itisthenotificationthataseriouserrorhasoccurredonthenetwork

D.Itisthedurationcalculationtodelayretransmissionaftera

collision,before

retransmittinginEthernet.

11)IBM'sTokenRingspecificationisnearlyidenticalandcompatible

withIEEE's802.5

specification(IBM的令牌环网规范几乎和IEEE的802.5规范一'样而

且兼容)。

A.True

B.False

12)Whatisbeaconing(什么是信标)?

A.ItisthefaulttolerancecalculationforFDDI

B.Itisaroutingcalculationfordeterminingthebestroute

C.Itisthenotificationthataseriouserrorhasoccurredonthenetwork

D.Itisthedurationcalculationtodelayretransmissionaftera

collision,before

retransmittinginEthernet

13)WhattwotypesofframesarefoundonaTokenRingnetwork(在令牌

环网中可以找到

哪两种类型的帧)?

A.Token

B.Framechecksequence

C.Data

D.Address

14)TheFDDIspecificationincludeswhichlayersoftheOSIreference

model(FDDI规范包

含0SI参考模型的哪层)?

A.Physicalandnetwork

B.Physicalandtransport

C.PhysicalandMACsublayerofdatalink

D.Physicalanddatalink

15)WhatisRS-232(什么是RS-232)?

A.Astandardserialportinterface

B.Ahigh-speedserialinterface

C.AnISDNinterface

D.AnATMswitch

16)WhatisthemaximumdatatransmissionrateforHSSI(什么是HSSI

的最大数据传输速

率)?

A.64Kbps

B.256Kbps

C.100Mbps

D.52Mbps

17)Whatdoesthehierarchicalnetworklayeraddressprovide(层次式网

络层地址提供了什

么)?

A.Thehardwareaddress

B.Thenodeaddressandthehardwareaddress

C.Thenetworkaddressandthenodeaddress

D.Thenetworkaddressmappedtothehardwareaddress

18)WhatqualitiesmatchTCP(TCP具有哪些特点)?

A.connectionless,reliable

B.connection-oriented,reliable

C.connectionless,unreliable

D.connection-oriented,unreliable

19)WhatlayeroftheOSIreferencemodelspecifiesdataformats,such

asencryption(OSI参

考模型的哪层规定了数据格式。例如加密)?

A.application

B.presentation

B.session

D.transport

E.network

F.datalink

G.physical

20)Whatisout-of-bandmanagement(什么是带外管理)?

A.Itistheabilitytomanageaswitchorhubfromanetworkedworkstation

B.Itistheadditionofanetworkmanagementmoduletoahub

C.ItisthefaulttolerancefeatureofthedualringFDDIcreatingasingle

ring

D.Itistheabilitytomanageadeviceusingaconnectionotherthanthe

network.

21)Interoperabilitymeans(互操作性的含义):

A.Transferofdatabetweensystems

B.Abilitytomakedataunderstandablebymachinesthatusedifferent

operatingsystems,

hardwareorlanguages.

C.Agreementbetweentwoequipmentvendorsforprocessingdata

D.AbilityofLANtocommunicatewithWAN

22)OSIiswhatkindofstandard(OSI是何种类型的标准)?

A.astandardcreatedbymajortelecommunicationsserviceproviders

B.adefactostandard

C.adejurestandard

D.astandardcreatedbymajorequipmentmanufacturers

23)ThelayeredapproachoftheOSIresultsin(OSI的分层方法的结果是):

A.Increaseddevelopmentcostsforaspecificvendorproduct

B.Increasedmarketabilityforaspecificvendorproduct

C.Ahierarchicaltoolfornetworkarchitecture

D.Alloftheabove

E.B&Conly

F.A&Conly

24)Whichofthefollowingstatementsistrueingeneralwhenan

applicationatthesource

wishestosenddatatoanapplicationatthedestinationaddress(当源

端的一个应用程序希望发送

数据到目的地址的另一个应用程序时,下面的哪些陈述一般是正确的)?

A.Thelowerlayeratdestinationaddsitsownheaderinformationtothe

dataitreceivesfrom

thehigherlayer

B.Thelowerlayeratsourceaddsitsownheaderinformationtothedata

itreceivesfromthe

higherlayer

C.Thelowerlayeratdestinationstripsheaderinformationfromthedata

addedbythehigher

layer

D.Thehigherlayeratsourcestripsheaderinformationaddedtothedata

bythelowerlayer

25)IntheOSImodel,encapsulationofthedatamayoccurat(在0SI

模型中,数据的封装发

生在):

A.Layer7ofthesource

B.Layer1ofthedestination

C.Layer7ofthedestination

D.Alllayersatsource

E.Layer1ofthesource

26)ThesessionlayerfunctionalityintheOSImodelisusually

implemented(OSI模型中的

会话层功能通常如何实现):

A.Atuserpremises

B.Inhardware

C.Insoftware

D.Inhardwareandsoftware

27)AtthephysicallayerintheOSImodelthedataisbrokeninto(在

0SI模型中的物理层

中,数据分解为):

A.cells

B.fragments

C.bits

D.packets

28)CollisioninaCSMA/CDnetworkissaidtooccurwhen(CSMA/CD网络

中的冲突会在

什么时候发生):

A.Anodelistenstothenetworkandhearsnothing

B.Anodereceivesamessagefromthenetwork

C.Twonodeshearnothingandthentransmitdatasimultaneously

D.Anodeonthenetworkhasphysicalfailure

29)Abroadcastsystemmeans(广播系统的含义是):

A.Onlyfewnodesonthenetworkseethedatameantforthesenodes

B.Allnodesonthenetworkseeallthedataframes

C.Networkinformsallthenodesofanetworkfailure

D.Noneoftheabove

30)WhichstatementsaretrueofapreambleintheIEEE802.3frame(对

IEEE802.3帧前导

符的陈述哪一个是正确的)?

A.Itisanindicationthatanodeisreceivinganewframe

B.Itcontainsallzeroes

C.Itcontainsallones

D.Itcontainsalternatingzerosandones

E.AandBonly

F.AandDonly

G.AandConly

31)AFrameCheckSequence(FCS)intheIEEE802.3frameincludes(IEEE

802.3帧中的帧

校验序列(FCS)包括):

A.Areceivingstationaddress

B.Asourcestationaddress

C.ACyclicRedundancyCheck(CRC)value

D.Asequencenumberoftheframe

32)InaTokenRingnetworkarchitecture,whatdoesitmeanwhenanode

possessesatoken

(在令牌环网结构中,当一个节点拥有令牌时,这意味着什么)?

A.Thenodehastheabilitytotransmitthedatatothenetwork

B.Thenodehastherighttopassthedatatothenetwork

C.Thenodehastherighttoretainthetoken

D.Noneoftheabove

33)InaTokenRingnetworkarchitecture,ifanodereceivesatokenand

hasdatatotransmit,

then(在令牌环网结构中,如果一个节点收到一个令牌,并且有数据要传输,则):

A.Thenodedoesnothing

B.Thenodewaitsfordatatobetransmitted

C.Thenodeconvertsthetokenintoastart-of-framefield

D.Noneoftheabove

34)WhatisthemainpurposeofthedualringarchitectureinFiber

DistributedDataInterface

(FDDI)(光纤分布式数据接口(FDDI)中的双环体系结构的主要目的是什么)?

A.Toincreasetrafficonthenetwork

B.Toallowbi-directionaltrafficonthenetwork

C.Toprovidefaulttolerance

D.Toprovideonepathfortrafficfromselectednodes

35)WhichstatementistrueoftheMediaAccessControl(MAC)address(对

介质访问控制

(MAC)地址的陈述中,哪一个是正确的)?

A.Itisdependentonthehardwarelocation

B.Itisdependentonthenetworktype

C.Itisassignedbyavendor

D.Itchangeseverytimethehardwareispluggedturnedonandoff

36)TheBasicRateInterface(BRI)inISDNhas(ISDN中的基本速率接口(B

RI)具有):

A.OneBchannelandoneDchannel

B.23BchannelsandoneDchannel

C.TwoBchannelsandoneDchannel

D.TwoDchannelsandoneBchannel

37)Synchronizationofnetworktimingisdoneatwhichlayer(网络计时

的同步是在哪一层

完成的)?

A.Datalinklayer

B.Transportlayer

C.Physicallayer

D.Sessionlayer

38)WhatisaNetworkControlProtocol(NCP)frameinaPointtoPoint

Protocol(PPP)used

for(在点对点协议(PPP)中网络控制协议(NCP)帧的作用是什么)?

A.Establishingandconfiguringaconnection

B.Encryptionofdata

C.Assigningadynamicaddress

D.Selectingandconfiguringthenetworklayerprotocol

39)InaFrameRelaynetwork,whichstatementistrueofForwardExplicit

Congestion

(FECN)whenthenetworkiscongested(在帧中继网络中,当网络拥塞时,关

于FECN的陈述,

哪一个是正确的)?

A.Itisabitthatissetto“0”

B.Itisabitthatissetto“1”

C.ItissentbyDTEtoupperprotocollayers

D.AandConly

E.BandConly

40)DataLinkConnectionIdentifier(DLCI)inaFrameRelaynetwork

identifieswhat(帧中

继网络中的数据链路连接标识符(DLCI)标识什么)?

A.DataTerminalEquipment(DTE)

B.DataCircuitTerminationEquipment(DCE)

C.AconnectionbetweentwoDTEs

D.Alloftheabove

41)HowdoesaPermanentVirtualCircuit(PVC)inaFrameRelaynetwork

differfroma

SwitchedVirtualCircuit(SVC)(帧中继网络中的永久虚电路(PVC)如何

与交换虚电路(SVC)区

分)?

A.Itisapermanentlyestablishedlink

B.Itterminatesafterthecallhasended

C.Ithasadatatransferphase

D.Ithasanidlephase

42)TheITUX.25Standarddescribesprotocolforwhichlayerorlayers

(ITUX..25标准说明

了哪个层或哪些层的协议)?

A.physicallayer

B.sessionlayer

C.transportlayer

D.datalinklayer

E.networklayer

F.A,BandConly

G.A,DandEonly

H.A,CandDonly

43)X.25canhandledataratesupto(X.25处理定义数据速率达到):

A.1024Kbps

B.256Kbps

C.512Kbps

D.768Kbps

44)AsynchronousTransferMode(ATM)isa(异步传输模式(ATM)是):

A.Packet-switchingtechnology

B.Frame-switchingtechnology

C.Cell-switchingtechnology

D.Circuit-switchingtechnology

45)HowmanyheaderformatsarethereinATMterminology(在ATM术语

中,共有多少个

报头格式)?

A.5

B.4

C.3

D.2

E.1

46)WhichofthefollowingusesInternetworkOperatingSystem(IOS)(下

面的哪一个使用

网络互联操作系统(I0S))?

A.Bridges

B.DMS-100

C.4ESS

D.Ciscorouters

E.5ESS

47)HowmanyswitchingmodesareincludedinCatalyst1900/2820switches

(在Catalyst

1900/2820交换机中包含了多少个交换模式)?

A.1

B.2

C.3

D.4

1)Whatcommandwouldyouusetologoutoftherouterandendyoursession

(Selecttwo.)

(你将使用什么命令在路由器上注销和结束会话?(选择2个))

A.TERMINATE

B.logout

C.exit

D.sessionend

2)Ifyoutypeacommandthattherouterdoesn,trecognize,whatwill

therouterdo(如果输

入了一个路由器无法识别的命令,路由器将如何动作)?

A.Displayanerrormessage

B.TrytoresolvethecommandtoanIPaddress

C.Trytoexecutetheclosestcommanditcanfindinitscommandset

D.Invalidatetheconfiguration

3)YoucanconfirmthatyouareintheprivilegedEXECmodebywhichprompt

(在哪种提示

符下可以确认是处于特权EXEC模式)?

A.Router)

B.Router(config)#

C.Router#

第2章从CiscoIOS软件开始51

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D.Router(config-if)#

4)Areloadoftherouterisrequiredtogettheconfigurationchanges

totakeplace(为了使配

置的改动生效,需要重新加载路由器)。

A.True

B.False

5)Bydefault,howmanycommandsarestoredinthecommandhistorybuffer

(默认情况下,

在命令历史缓冲区内存储了多少条命令)?

A.5

B.10

C.15

D.20

6)TheIOSimageisnormallystoredin(IOS映像通常保存在哪里)?

A.RAM

B.NVRAM

C.Shared

D.Flash

7)ThestartupconfigurationfileisstoredinNVRAM(启动配置文件保存

在NVRAM中)。

A.True

B.False

8)Todeterminetheoperationalstatusofaninterface,whichcommanddo

youuse(为确定接

口的操作状态,要使用哪个命令)?

A.DISPLANINTERFACESTATUS

B.showinterface

C.showstatusinterface

D.displayinterface

9)Thebootfieldconsistsof(引导字段包括):

A.Thelowestfourbitsoftheconfigurationregister

B.Thesameastheconfigurationregister

C.Thehighestfourbitsoftheconfigurationregister

D.Bits4through7oftheconfigurationregister

10)Abootfieldvalueof0x1willcausetherouterto(引导字段值为0

x1,这将导致路由

器):

A.BootfromFlash

B.Lookforbootsystemcommandsinthestartupconfiguration

C.LookforanIOSimageonaTFTPserver

D.BootfromROM

11)Toviewtheconfigurationregistersettings,whichcommanddoyou

enter(为查看配置注

册表设置,你需要输入哪个命令)?

A.SHOWRUNNING-CONFIGURATI0N

52CCNA学习指南

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B.showstartup-configuration

C.showversion

D.showcontrollers

12)WhatcommandisrequiredtosendDebugoutputtoaVTYsession(为

将调试输出发送

到VTY会话中,需要哪个命令)?

A.SHOWDEBUG

B.showlog

C.terminalmonitor

D.debugall

13)Whichkeystrokewouldyouusetorecallthepreviouscommandinthe

commandhistory

buffer(回调命令历史缓冲区中的前一条命令,需要哪个键盘命令)?

A.CTRL-N

B.CTRL-P

C.ESC-P

D.ESC-F

14)YoumusthaveanIPaddressassignedtoanInterfaceinorderforCDP

tooperate(你必

须具有指定给接口的IP地址,目的是使CDP工作)。

A.True

B.False

15)WhatisthecommandtoviewthestoredconfigurationinNVRAM(查

看存储在NVRAM

中的配置信息的命令是什么)?

A.SHOWRUNNING-CONFIG

B.showstartup-config

C.showversion

D.showNVRAM

16)Whendoconfigurationcommandstakeeffect(什么时候配置命令生效)?

A.Whenyoureloadtherouter

B.WhentheyaresavedinNVRAM

C.AssoonasyoupresstheENTERkey

D.WhenyouenterthecommandENABLE.

17)Whatcommandisneededtoseeifaninterfaceisupandoperational

(为了解接口是否活

跃并可操作,需要使用哪个命令)?

A.SHOWCONTROLLERS

B.showrunning-config

C.showinterface

D.showbuffers

18)WhatisthebestcommandtoentertodeterminewhichreleaseofIOS

therouteris

running(为确定路由器正在运行的I0S的版本,最好输入哪个命令)?

A.SHOWFLASH

B.showrunning-config

C.showstartup-config

D.showversion

19)Whatisthecommandneededtocopythecurrentoperational

configurationtoaTFTP

server(为将当前运行的配置复制到TFTP服务器上,需要哪个命令)?

A.COPYRUNNING-CONFIGTFTP

B.copystartup-configtftp

C.copytftprunning-config

D.copytftpstartup-config

20)Whatcommandwouldyouusetoseeinformationaboutalltheprotocols

enabledinthe

router(为查看路由器中可以使用的所有协议的信息,你将使用哪个命令)?

A.DISPLAYPROTOCOLINFORMATI0N

B.displayprotocols

C.showprotocolroute

D.showprotocols

21)WhatisthepartoftheIOSsoftwarethatprovidestheuserinterface

andinterpretsthe

commandsyoutype(IOS软件的哪一部分提供了用户界面和解释你输入的命

令)?

A.Thevirtualterminal

B.Thecommandexecutive

C.Theconsoleport

D.Theconfigurationregister

22)WhatcommandallowsyoutoviewtheconfigurationinRAM(什么命令

允许你查看

RAM中的配置)?

A.SHOWSTARTUP-C0NFIG

B.showRAM-config

C.showrunning-config

D.showconfig

23)Whichofthefollowingrepresentsaccessviaaphysicalconnection

ofaterminaltoa

router(下面的哪一种说法代表了通过终端到路由器的物理连接而进行访问)?

A.Virtualterminal

B.IOS

C.Console

D.Alloftheabove

24)WhatcommandwouldyouusetoviewthenameofthefilenameinFlash

memory(为查

看闪存中的文件名称,将使用哪个命令)?

A.SHOWMEMORYALL

B.showflash

C.showfilename

D.showflashpartitions

25)Whatisthelevelofaccesstotherouterinwhichyouareallowed

tochangetherouterJs

configuration(在哪个对路由器的访问级别中,可以允许你修改路由器的配

置)?

A.UserEXECmode

B.High-levelaccessmode

C.PrivilegedEXECmode

D.Consolemode

26)ChangestotherouterconfigurationareallowedfromtheuserEXEC

mode(从用户模式

可以修改路由器配置)。

A.True

B.False

27)HowcanyouconfirmyouareinprivilegedEXECmode(如何可以确认

你处于特权

EXEC模式)?

A.ByissuingthecommandCONFIRMMODE

B.ByviewingtheoutputoftheSHOWVERSIONcommand

C.BynotingtherouterJsprompt

D.Noneoftheabove

28)AftergivingthecommandINTERFACEETHERENTOfromglobalconfiguration

mode,

therouterismostlikelytorespondwith(在从全局配置模式接收到命令

INTERFACE

ETHERNET0之后,路由器最可能以什么形式作出响应):

A.router(config)#

B.router#interface

C.router(config-if)#

D.router#(config-int)

29)Tocompletelygetoutoftheinterfaceconfigurationmodeandback

toprivilegedEXEC

mode,whatshouldyouuse(为彻底退出接口配置模式和返回到特权EXEC

模式,你必须使

用)?

A.CTRL-Z

B.EXIT

C.ENDCONFIG

D.LOGOUT

30)TheresponsetothecommandROUTER#CONFIGUREwillbe(对命令RE0

UTER#

CONFIGURE的响应应该是):

A.Connect,copy,configure

B.Variouspathsfromsourcetodestination

C.router(config)#

D.Alistofpossibleoptionsfromwheretheroutercanbeconfigured

31)WhicharethetypesofmemoryelementsinaCiscorouter(Cisco路

由器中的内存有哪些

类型)?

A.RAM,ROM,NVRAM,andBoot

B.RAM,ROM,NVRAM,andFlash

C.Config,RAM,ROM,NVRAM,andFlash

D.Buffers,RAM,NVRAM,andFlash

32)HowdoyoususpendaTelnetsession(如何挂起一■个TeInet会话)?

A.UsethecommandSUSPENDSESSION

B.UsethekeystrokesCTRL-ALT-6

C.UsethekeystrokesCTRL-SHIFT-6-X

D.ATelnetsessioncannotbesuspended.Youmustquitthesessionand

initiateitagainif

youwanttogobacktoit.

33)Whatisthecharacteristicofalink-stateroutingprotocolthat

enablesittomakebetter

routingdecisions(链路状态路由协议的哪个特点使其作出比较好的路由决

策)?

A.Itsmetricstakebandwidthintoaccount

B.Itusesahelloprotocol

C.Itbroadcaststhecontentsofitsroutingtableperiodicallytoits

neighbors

D.Noneoftheabove.

34)Whatisthesequenceofeventsthatoccurswhenyoupowerupyourrouter

(打开路由器

电源的时候,事件发生的顺序是怎样的)?

A.Findconfigurationfile,loadIOSimage,testhardware

B.LoadIOSimage,testhardware,findconfigurationfile

C.Testhardware,findconfigurationfile,loadIOSimage

D.Testhardware,loadIOSimage,findconfigurationfile

35)Thesizeoftheconfigurationregisteris(配置注册表的大小是):

A.16bits

B.12bits

C.8bits

D.4bits

36)Itisrecommendedthatinordertoobtainbestresults,BOOTSYSTEM

FLASH

commandbeenteredaftertheBOOTSYSTEMROMcommand(为得到较好的结果,

BOOT

SYSTEMFLASH命令要在BOOTSYSTEMROM命令之后输入)。

A.True

B.False

37)Thecommandrouterx(config)#bootsystemtftp72

willboottherouterfrom(命令routerx(config)#bootsystemtftp

72将从何处引导

路由器):

A.SystemimageinFlash

B.Systemimage72fromRAM

C.Systemimage72fromTFTP

D.SystemimagefromTFTP

38)Agoodconnectionisindicatedbywhichofthefollowinginanoutput

displayofthe

PINGcommand(在PING命令的输出显示中,下面的哪一个代表了良好的连接

状态)?

A.!!!!!

B......

C.xxxxx

D.******

39)IfamistakeismadeinspecifyingthefilenameintheCOPYTFTPFLASH

command,

therouterwillstillfunctionbecause(如果在COPYTFTPFLASH命令中指

定了错误的文件名

称,路由器将仍然会正常运行,原因是):

A.ItstillhasworkingimageinROM

B.ItstillhasworkingimageinRAM

C.ItstillhasworkingimageinFlash

D.ItstillhasworkingimageinTFTP

40)ThecommandCOPYFLASHTFTPFILE2600copies(命令COPYFLASHTFTP

FILE2600复制):

A.ContentsoffilefromFlashintofile2600oftheTFTPserver

B.ContentsofTFTPintofile2600intheFlash

C.Contentsoffile2600intheTFTPtofile2600intheFlash

D.Contentsoffile2600intheTFTPintoFlash.

41)Whatcommandcanbeusedtoseetherouter,sneighborsfromyourlocal

routerifno

networklayerprotocolsareconfigured(如果没有配置网络层协议。哪个命

令可以用于从本地路

由器查看路由器的邻居)?

A.SHOWCDP

B.showcdpneighbor

C.showneighbor

D.shownetwork

42)Inordertoshowtheneighbor'sIOSversion,whatoptionalparameter

canbeusedinthe

commandSHOWCDPNEIGHBOR(为显示邻居的I0S版本,在命令SHOWCDPNEIGHBOR

中可以使用哪个可选的参数)?

A.VERSION

B.IOS

C.detail

D.Noneoftheabove

43)InaCiscorouter,configurationregisterinformationcanbeusedto

(在Cisco路由器中,

配置注册表信息可以用于):

A.Selectabootsourceanddefaultfilename

B.EnablebootingfromaTFTPserver

C.LoadoperatingsoftwarefromROM

D.Alloftheabove

1)Whatisthenetworkaddressfortheaddress6(地址96.2.

3.16的网络地址是什么)?

A.

B.

C.

D.Can'ttell

2)Whatclassofaddressis3(3是何类地址)?

A.ClassA

B.ClassB

C.ClassC

D.ClassD

3)Howmanybitsareinthedefaultsubnetmaskfortheaddress

6(在地址

6的默认子网掩码中有多少位)?

A.8

B.16

C.24

D.32

4)HowmanyhostsaresupportedbyaClassCnetworkaddress,without

subnetting(C类网

络地址在没有子网的情况下支持多少个主机)?

A.254

B.65,000

C.255

D.16,000

5)WhatisthedefaultmaskforaClassBnetwork(B类网络的默认掩码

是什么)?

A.

B.

C..

D.

6)ApproximatelyhowmanyuniquenetworksarepossiblewithaClassB

address(使用B类

地址大约可以有多少个不相同的网络)?

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A.254

B.16K

C.65K

D.2M

7)Whatisthedecimalvalueofthebinarynumber11001011(二进

制数11001011的十进制值

是多少)?

A.203

B.171

C.207

D.193

8)Whatisthebinaryvalueofthedecimalnumber219(十进制数219

的二进制值是多少)?

A.11101011

B.01011101

C.11101011

D.11011011

9)Subnetbitsareaddedtotosegmentthenetworkinto

subnets(子网位加入到

以将网络划分为子网)?

A.Thenetworkaddress

B.Thedefaultsubnetmask

C.Thehostaddress

D.ThesubnetID

10)IfeightbitswereallocatedtosubnettingwithaClassBaddress,

howmanysubnets

wouldbepossible(如果在B类地址中,将8位分配给子网,则有多少可能的

子网)?

A.62

B.256

C.254

D.16K

11)Giventhesubnetmask255.255.240onaClassAaddress,howmanybits

areallocatedto

subnetting(在A类地址上给定了子网掩码255.255.240,则有多少

位分配给子网)?

A.4

B.5

C.9

D.12

12)Ifthesubnetmaskforthenetworkis,which

oftheseisa

validhostaddress(如果网络的子网掩码是255.2

55.224.0,下面的哪一个是合法的

主机地址)?

A.7

B.3

C.4

76CCNA学习指南

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D.0

13)WhatisthefirstsubnetIDforthenetworkwithasubnet

maskof

(带有子网掩码的网络的第一个子网

ID是什么)?

A.

B.

C.

D.

14)WhatisthemaximumnumberofsubnetbitspossiblewithaClassC

address?(在C类地

址下,子网位可能的最多数目是多少?)

A.6

B.8

C.14

D.12

15)Giventheaddress2withasubnetmaskof,

whatadvanced

subnettingtechniqueisbeingused(带有子网掩码255.255.224.

0的地址2,可以使

用何种高级的子网划分技术)?

A.Subnettingacrossoctets

B.VLSM

C.Supernetting

D.None

16)Givenasubnetmaskof255.255.240,whichoftheseaddressesisnot

avalidhostaddress

(在给定子网掩码255.255.240的情况下,这些地址中的哪一个不是

合法的主机地址)?

A.

B.

C.2

D.5

17)HowmanyhostspersubnetarepossiblewithaClassBaddress,iffive

bitsareaddedto

thedefaultmaskforsubnetting(在B类地址中,每个子网有多少口J用的主

机,如果在默认掩码

后加入了5位,以进行子网划分)?

A.510

B.512

C.1022

D.2046

18)IfyouwereissuedaClassCaddress,andneededtodividethenetwork

intoseven

subnets,withupto15hostsineachsubnet,whatsubnetmaskwouldyou

use(如果你遇到了一个

C类地址,并且需要将网络划分为7个子网,每个子网有15个主机,则将使用

哪个子网掩码)?

A.24

B.255.255.224

C.40

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D.NoneoftheAbove

19)WhatIOScommandwouldyouissuetosettheIPaddressonaterminal

line(通过终端线

路设置IP地址时,将使用哪个I0S命令)?

A.ROUTER(CONFIG-IF)SIPADDRESS

B.ROUTER(CONFIG-LINE)#IPADDRESS

C.Router(config)#ipaddress

D.Noneoftheabove

20)WhatIOScommandwouldyouusetodefinethesubnetmaskforan

interfaceonthe

router(在定义路由器接口的子网掩码时,你将使用哪个I0S命令)?

A.ROUTER(CONFIG-IF)SIPADDRESS

B.ROUTER#TERMIP-NETMASKFORMAT

C.Router(config-line)#ipnetmask-format

D.Router(config)#ipsubnetmask

21)WhatIOScommandturnsoffname-to-addressresolution?(哪个IOS

命令关闭名称-地址

解析)?

A.ROUTER#NOIPDOMAIN-LOOKUP

B.ROUTER(CONFIG)#N0DOMAIN-LOOKUP

C.Router(config-if)#noipdomain-lookup

D.Router(config)#domain-lookupoff

22)Toviewname-to-addressmappingscachedontherouter,whatIOS

commandwouldyou

issue(为查看路由器上缓存的名称一地址映射,你将使用哪个I0S命令)?

A.ROUTER>SHOWHOSTS

B.ROUTER(CONFIG)#SHOWHOSTS

C.Router#ipname-server

D.Router(config)#ipname-server

23)Ifyoureceiveda!!!!!inresponsetoaPINGcommand,whatwouldthat

indicate(如果你

在PING命令中,收到了一

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