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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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