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首页 集美大学计算机网络基础选择题

集美大学计算机网络基础选择题.doc

集美大学计算机网络基础选择题

田雷电
2018-02-14 0人阅读 0 0 0 暂无简介 举报

简介:本文档为《集美大学计算机网络基础选择题doc》,可适用于IT/计算机领域

集美大学计算机网络基础选择题WhichstatementsbestdescribeaphysicalconnectionChoosetwo答案:abausedtotransferdatabetweenPCandlocalnetworkbcouldutilizemodemorNICcInternetstandardisTCPIPdinterpretsdataanddisplaysinformationWhichofthefollowingwilltesttheinternalloopbackofanode答案:eapingbpingcpingdpingepingWhichphrasesdescribeabyteChoosetwo答案:eaasinglebinarydigitbasingleaddressablestoragelocationcvoltsofelectricitydthevaluerangefromtoeagroupingofeightbinarydigitsWhichofthefollowinginterpretsthedataanddisplaystheinformationinanunderstandableformfortheusertosee答案:baremotedevicesbapplicationclogicalconnectiondprotocolstackephysicalconnectionWhichofthefollowingarepopularwebbrowsersChoosetwo答案:efgaWorldWideWebbQuicktimecMacromediaFlashdAcrobateInternetExplorerfFirefoxgchromeConverttheBasenumberintoitseightbitbinaryequivalentChoosethecorrectanswerfromthefollowinglist:答案:cabcdefWhywereTCPIPprotocolsdeveloped答案:aaToallowcooperatingcomputerstoshareresourcesacrossanetworkbTodeterminethe"bestpath"decisionmakingwhenforwardingpacketsofdatacToinsurethaterrorcorrectionofeachpackettakesplacedToallocateresourcesthatareneededforoperatingacomputeronaLANIfyouperformaBooleanANDontheIPaddressusingthesubnetmaskof,whichofthefollowingisthesubnetworkaddress答案:cabcdeInanbitbinarynumber,whatisthetotalnumberofcombinationsoftheeightbits答案:eabcdefWhichofthefollowingarefunctionsofawebbrowserwithouttheadditionofpluginsChoosethree答案:abearequestsinformationbreceivesinformationcupdatesIRQ‘sddisplaysQuicktimemoviesecontactswebserversfdisplaysflashanimationWhichofthefollowingistrueregardingnetworkbandwidth答案:adaBandwidthisnotakeyfactorinanalyzingnetworkperformancebBandwidthisfreecBandwidthneverincreasesdBandwidthhascapacitylimitsWhichofthefollowingarewaysthatbandwidthiscommonlymeasured(Choosethree)答案:adeaMbpsbGHzpscNbpsdkbpseGbpsfMHzpsWhatisthenumericbaseofhexadecimalnumbers答案:aaBasebbasecbasedBaseebaseWhichofthefollowingdescribeaLAN(Choosetwo)答案:bdaensuressingleaccesstospecialtyhostsboperateswithinalimitedgeographicalareacprovidesdialupconnectivitydconnectsphysicallyadjacentdeviceseusesserialinterfacestoallowoperationatlowerspeedsWhichofthefollowingtopologiesareconsideredlogicaltopologies(Choosetwo)答案:dfabusbhierarchicalcstardbroadcastemeshftokenpassingWhichofthefollowingistheofficialnamefortheaddressassignedtoeachnetworkinterfacecard(NIC)byitsmanufacturer答案:baSourceAddressbMACaddresscIPaddressdNICaddressWhichphysicalnetworktopologyusesasinglebackbonecableandconnectsallhostsdirectlytothiscable答案:aabusbmeshcstardringWhichofthefollowingtypesofnetworkspassatokensequentiallytoeachhost(Choosetwo)答案:aeaTokenRingbFrameRelaycEthernetdISDNeFDDIWhichofthefollowingareconsideredvalidtypesofVPNs(Choosethree)答案:bdealocalbaccesscinternaldintraneteextranetfexternalWhichdeviceisusedtoconnectLANsthataregeographicallyseparated答案:aarouterbrepeatercbridgedhubWhichofthefollowingistrueofarepeater答案:baHasaburnedinMACaddressforeachportbReceivesbitsignalsandstrengthensthemcReceivesframesandforwardsthemdDetermineswhichnetworktosendapacketWhichofthefollowingistrueofahub(Chooseallthatapply)答案:acaUsuallyhasfourormoreportsbWorkswithMACaddressescTransmitsregeneratedsignalstoallconnectedportsdUsuallyhasjusttwoportsWhichofthefollowingistheunitofmeasurementbywhichahub’sbandwidthisusuallyspecified答案:daPacketspersecondbBytespersecondcBytesperminutedBitspersecondWhichofthefollowingdescribeshowdevicesconnectedtoahubusethespeedatwhichthehubcantransmitdata答案:daBandwidthdedicationbBandwidthmultipliercBandwidthoptimizationdBandwidthsharingWhichofthefollowingdescribeshowdevicesconnectedtoaswitchusethespeedatwhichtheswitchcantransmitdata答案:caHalfduplexbandwidthbSharedbandwidthcDedicatedbandwidthdHalfscalebandwidthWhatfeatureofaswitchallowsdevicestoeffectivelycommunicateatMbpsonaMbpsswitch答案:caFramedoublingbUplinkportcFullduplexmodedSignalregenerationeSharedbandwidthfBitstrengtheningTowhichdeviceisawirelessaccesspointmostsimilarinhowitoperates答案:aaHubbNICcRouterdSwitchWhichofthefollowingdescribesthearrangementofnetworkcablingbetweendevices答案:daMediaaccessmethodbNetworkingtechnologycLogicaltopologydPhysicaltopologyWhichofthefollowingrequestsinformationstoredonanothercomputer答案:eaNetworkserverbDevicedrivercNetworkprotocoldNICeNetworkclientDataisprocessedfromthetimeanapplicationcreatesittothetimeitreachesthenetworkmediumThisprocessincludesaddinginformationsuchasaddressesandiscalledwhichofthefollowing答案:daPacketizationbLayeringcDeencapsulationdEncapsulationAdeviceinterconnectsfivecomputersandaprinterinasingleofficesothatuserscansharetheprinterThisconfigurationisanexampleofwhichofthefollowing答案:baMANbLANcWANdInternetworkWhatistheunitofmeasurementforelectricalcurrent答案:bakilowattbamperecvoltdohmewattWhatdoesUTPcablerelyontoreducesignaldegradationcausedbyEMIandRFI答案:eainsulationbRJconnectorscproperlygroundedconnectionsdmagnetismecancellationfshieldingHowisthecurrentdeterminedifthevoltageandresistanceofanelectricalcircuitareknown答案:eaDividetheresistancebythevoltagebAddthevoltageandresistancecMultiplythevoltagebytheresistancedThisproblemcannotbesolvedwiththegiveninformationeDividethevoltagebytheresistancefSubtracttheresistancefromthevoltageWhichtypeofcablehasthecolorofthewiresinpins#and#ononeendappearontheotherendatpins#and#答案:dahubconnectorcablebstraightthroughcablecconsolecabledcrossovercableerollovercableWhatoccurswhenavoltagesourceisconnectedtoacompletedelectricalcircuit答案:aaelectronswillflowfromthenegativeterminaltothepositiveterminalbelectronswillflowfromthepositivetothenegativeterminalscesistancewilldecreaseinthecircuitdresistancewillincreaseinthecircuitecurrentwilldecreaseinthecircuitWhichcombinationsofchargeswillberepelledbyelectricforce(Choosetwo)答案:bdaneutralandpositivebnegativeandnegativecneutralandnegativedpositiveandpositiveepositiveandnegativefneutralandneutralWhichofthefollowingmaterialsseverelyrestricttheflowofelectrons答案:aainsulatorsbconductorsccarbonobjectsdsemiconductorseionsolutionsfsiliconbasedmaterialsWhatisthemaximumtransmissionrateofadevicecompliantwiththebasicnstandard答案:caMbpsbMbpscMbpsdMbpsSelectthecharacteristicsspecifiedbyBase(Choosethree)答案:bdeagigabitsperseconddataratebmegabitsperseconddataratecdecimalencodeddatatransmissiondthickcableebasebandtransmissionfTstyleconnectorsWhichofthefollowingwirelessstandardsincreasedtransmissioncapabilitiestoMbps答案:daabdccdwifiHowarecollisionsdetectedonanEthernetnetwork答案:baStationsidentifythealteredFCSfieldonthecollidingpacketsbThesignalamplitudeonthenetworkingmediaisn'tlowerthannormalcTrafficonthenetworkcannotbedetectedduetoablockagedThesignalamplitudeonthenetworkingmediaisn'thigherthannormalWhichofthefollowingarefeaturesofaTokenRingnetwork(Choosetwo)答案:bcausesCSMACDbcollisionlessenvironmentcdeterministicdpronetocollisionsenondeterministicWhatisthepurposeofthepreambleinanEthernetframe答案:daidentifiesthesourceaddressbisusedasapadfordatacidentifiesthedestinationaddressdisusedfortimingsynchronizationwithalternatingpatternsofonesandzerosemarkstheendoftiminginformationHowisaMACaddressrepresented答案:fafourgroupsofeightbinarydigitsseparatedbyadecimalpointbfourBasedigitsseparatedbyadecimalpointcsixbytesdsixhexadecimaldigitsetwentyfourBasedigitsftwelvehexadecimaldigitsWhichofthefollowingisincludedintheframeaddressfield(Choosetwo)答案:abadestinationMACaddressbsourceMACaddresscdestinationIPaddressddestinationsubnetmaskesourceIPaddressWhichcharacteristicsofEthernetcontributetoitswidespreaduse(Choosethree)答案:cdeacollisionfreetechnologybcollisionavoidancecapabilitiesclowcostofinstallationdeaseofmaintenanceescalabilityfcompatibilitywithstandardInwhichtwolayersoftheOSImodeldoesEthernetfunction(Choosetwo)答案:afaphysicalbsessionctransportdnetworkeapplicationfdatalinkWhichoptionsbelowarefieldnamesofagenericframe(Choosethree)答案:bdeavoltagereferencebdatacdescriptiondframechecksequenceelengthfIPheaderWhichstatementsbelowaretrueaboutEthernet(Choosethree)答案:abcaoriginalideadevelopedattheUniversityofHawaiibincludephysicslayerandpartlydatalinklayercessentiallythesameasstandardsdessentiallythesameasstandardsefirstreleasedasaXeroxproprietarystandardfbandwidthcan'tbeincreasedwithoutchangingtheunderlyingtechnologygaddressestheneedsofLayerandLayeroftheOSImodelWhichofthefollowingdescribeEthernetMACaddresses(Choosethree)答案:aceabitOUIandbitserialnumberbbitnetworkandbithostaddresscphysicaladdressdlogicalhostaddressepairsofhexdigitsfhexdigitsWhatisthenameoftheLayerProtocolDataUnit(PDU)答案:babitbframecpacketdsegmentedataWhatimpactdoesabridgehaveonanetwork(Choosetwo)选择一项或多项:答案:abahasnoimpactonbroadcastdomainsbincreasesnumberofcollisiondomainscaddsadditionalbroadcastdomainsdreducesthelengthofthesharedmediaereducesthenumbercollisiondomainsWhichitemsarecontributorstolatencyinaswitchednetwork(Choosetwo)选择一项或多项:答案:bcatoomanycollisiondomainsbsoftwaredelaysccircuitdelaysdincorrectMACaddressingWhatdoesaswitchbuildasitreadsMACaddressesthatpassthroughit选择一项:答案:baStoreandForwardlistbContentAddressableMemorytablecCutthroughdomaindMACRouteAddresstableeRoutingTopologytableWhichofthefollowingwouldalleviatetheproblemofexcessivecollisionsinaLAN(Choosetwo)选择一项或多项:答案:bdaincreasethelengthofUTPcablerunsbreducethesizeofcollisiondomainscaddadditionaltransceiversdaddextramanagedswitchesereducenumberofbroadcastdomainsfaddextrahubsWhichswitchingmoderesultsinthelowestamountoflatencyandprovidesnoerrorchecking选择一项:答案:aacutthroughbsynchronouscstoreandforwarddfragmentfreeWhichswitchingmethodallowsaswitchtoreceivetheentireframebeforesendingitoutthedestinationport选择一项:答案:aastoreandforwardbcutthroughcfragmentfreedasymmetricWhichLANdevicesmakeframeforwardingdecisionsbasedonMACaddresses(Choosetwo)选择一项或多项:答案:ababridgebswitchcrouterdhubetransceiverWhatwillabridgedoifitreceivesaframewithaMACaddressthatisnotwithinthetable选择一项:答案:dadiscardframebignoreframecsendframetoappropriateportdsendframetoallportsexceptsourceportWhichofthefollowingarenottobeexceededwhenimplementingtheRule(Choosethree)选择一项或多项:答案:bdeathreeroutersbthreehostsegmentscfivebroadcastdomainsdonecollisiondomainefourrepeaterWhatisadisadvantageofcutthroughswitching选择一项:答案:cadecreaseinbandwidthbadecreaseinerrorcheckingcnoerrorcheckingdincreasedlatencyedecreaseinnumberofcollisiondomainsWhichofthefollowingareconsideredLayerdevices(Choosetwo)选择一项或多项:答案:bdabridgebrepeatercswitchdhuberouteWhichofthefollowingisatermassociatedwithreplacinghubswithswitchestoincreasethenumberofcollisiondomains选择一项:答案:aasegmentationbencapsulationcbroadcastdomaindlayeredmodeleextendedflatencyWhichofthefollowingdescribestheconceptoffullduplexmode选择一项:答案:batrafficpassingfasterdownstreamthanupstreambtrafficpassingequallyinbothdirectionswithnocollisionsctrafficpassinginonedirectionatatimewithnocollisionsdtrafficpassingfasterupstreamthandownstreamThenetworkhasuseablehostsWhatisthesubnetmaskforthisnetwork选择一项:答案:cabcdThenetworkhascsegmentWhatisthesubnetmaskforthisnetwork答案:aabcdeWhichsubnetmaskwouldbeassignedtothenetworkaddressoftoprovideuseablehostaddressespersubnetwork答案:dabcdWhatisthenetworkbroadcastaddressforaClassCaddressofwiththedefaultsubnetmask选择一项:答案:dabcdeHowmanyusablehostsareavailablegivenaClassCIPaddresswiththedefaultsubnetmask答案:cabcdeWhichlayerisconsideredtobethehosttonetworklayeroftheTCPIPmodel答案:cadatalinkbinternetcnetworkaccessdapplicationetransportfpresentationWhichOSIlayersrelatetothenetworkaccesslayeroftheTCPIPmodel(Choosetwo)答案:bcanetworkbdatalinkcphysicaldsessionetransportfapplicationWhichTCPIPlayerprovidesservicesthatsupportalogicalconnectionbetweenthesendingandreceivinghosts答案:aatransportbnetworkcpresentationdapplicationeipInwhatwaysaretheTCPIPandOSImodelsthesame(Choosethree)答案:aefaBothhaveanapplicationlayerbBothhavenetworkaccessanddatalinklayerscBothassumecircuitswitchednetworksdBothhaveaphysicallayereBothassumepacketswitchednetworksfBothhavesimilartransportandnetworklayersWhichofthefollowingareincludedintheTCPIPapplicationlayer(Choosethree)答案:defaudpbnetwareipxcnosdtftpesnmpfftpWhichOSIlayersrelatetotheapplicationlayeroftheTCPIPmodel答案:efgadatalinkbnetworkcphysicaldtransportepresentationfapplicationgsessionWhichmodelwouldanetworkingprofessionalusetobetterunderstandthedatacommunicationprocess答案:aeaOSImodelbIEEEmodelcInternetworkingmodeldANSImodeleTCPIPmodelWhatstepsmustoccurfordevicestocommunicatebetweendifferentphysicalnetworksegments(Choosetwo)答案:acaobtainingtheMACaddressoftheintermediatedeviceblearningtheIPaddressofthesourcedevicecransferringthedatapacketsfromonenetworksegmenttoanothertoreachthedestinationhostdobtainingtheIPaddressofthelocalhostSeveralsolutionshavebeendevelopedtoexpandthenumberofIPaddressesavailableforpublicuseWhichtechnologiesaresolutions(Choosethree)答案:acdaNetworkAddressTranslationbclasslfullroutingcclasslessinterdomainroutingdIPveipvfanewbitaddressingschemeWhichlayerisconsideredtobethehosttonetworklayeroftheTCPIPmodel答案:catransportbapplicationcnetworkaccessdpresentationedatalinkWhichcriteriaidentifyaClassCaddress(Choosetwo)答案:bdadecimalnumberinfirstoctetbetweenbfirstthreebitsofIPbinaryaddressarecfirsttwobitsofbinaryIPaddressareddecimalnumberinfirstoctectbetweenefirstbitofbinaryIPaddressisfdecimalnumberinfirstoctectbetweenWhichofthefollowingareTCPservices答案:abdareliabilityofdatadeliverybendtoendcommunicationcpathdeterminationdflowcontroleaddressresolutionfdatarepresentationInwhatwaysaretheTCPIPandOSImodelsthesame答案:faBothhaveaphysicallayerbBothassumecircutswitchednetworkscthenetworkadministratorknowbothmodelsdBothhavenetworkaccessanddatalinklayerseBothhavelayersfBothhaveanapplicationlayerInthenetworkshownintheaccompanyinggraphic,wherewoulditbeappropriatetouseprivateaddressing答案:caonlyareabbareasaandbandccareascandbdareasaandceonlyareacfonlyareaaWhatshouldasystemadministratorconsiderwhenassigninganIPaddresstoanetworkserver(Choosetwo)答案:bdaServersshouldhaveaddressesassigneddynamicallythroughaDHCPbServersshouldhaveIPaddressesassignedstaticallybyanetworksystemadministratorcServerswithperiodicallychangedIPaddresseshavelittleeffectonanetworkdServerswithadynamicallyassignedIPaddresswouldbedifficulttolocateonanetworkWhichofthefollowingwouldbeafunctionofICMP答案:aaItprovidescontrolandmessagingcapabilitiesbItprovidesaddressresolutionservicescItallowsremotelogintodistanthostsdItenablesfiletransferbetweenhostseItsupportsemailfunctionalityWhatdoesTCPusetobeginthethreewayhandshakingprocess答案:baThedestinationhostsendsanACKsegmentbThesendinghostsendsaSYNsegmentcThedestinationhostsendsaSYNsegmentdThesendinghostsendsaSYNandACKsegmentWhichprotocolisusedtotransferfilesfromcomputertocomputerbutisconsideredconnectionless答案:aaTFTPbftpcTCPdSNMPedhcpWhichcriteriaidentifiesaClassBaddress答案:dadecimalnumberinfirstoctetbetweenbdecimalnumberinfirstoctetbetweencdecimalnumberinfirstoctetbetweenddecimalnumberinfirstoctetbetweenSeveralsolutionshavebeendevelopedtoexpandthenumberofIPaddressesavailableforpublicuseWhichtechnologiesaresolutions(Choosethree)答案:cdfaanewbitaddressingschemebDHCPcIPvdclasslessinterdomainroutingeipvfNetworkAddressTranslationWhatstepsmustoccurfordevicestocommunicatebetweendifferentphysicalnetworksegments答案:cdalearningtheIPaddressofthesourcedevicebobtainingtheIPaddressofthelocalhostcobtainingtheMACaddressoftheintermediatedevicedtransferringthedatapacketsfromonenetworksegmenttoanothertoreachthedestinationhostWhichofthefollowingprotocolsuseTCP(Choosetwo)答案:aeaftpbdhcpctftpdSYNehttp反馈Whichacknowledgementnumbershouldbesentbythereceivershowninthegraphic答案:dabcdefgWhichofthefollowingcharacteristicsofTCPisprovidedbywindowing答案:aaflowcontrolbbesteffortdeliverycwellknownportsdconnectionlessdatatransportWhatarethefeaturesoftheUserDatagramProtocol(UDP)(Choosethree)答案:befaconnectionorientedbreliabilityprovidedbytheapplicationlayercprovidesreliablefullduplexdatatransmissiondutilizesslidingwindowingtechniquesenoguaranteeddeliveryofdatagramsfconnectionlessWhichofthefollowingprotocolsoperateattheapplicationlayeroftheOSImodel(Choosetwo)答案:abaFTPbHTTPcTCPdUDPWhichportnumbersarecommonlyassignedforFTPuse(Choosetwo)答案:cdabcdTCPIPconnectionorientedsessionsbeginwithathreewayhandshakeWhichitemsdescribethehandshakeprocess(Choosethree)答案:cefacreatebencapsulatecsynchronizedpropagateenegotiatefacknowledgeEndsystemsuseportnumberstoselecttheproperapplicationWhatisthesmallestportnumberthatcanbedynamicallyassignedbyahostsystem答案:aabcdefWhichprotocolisusedbyemailserverstocommunicatewitheachother答案:eaftpbpopchttpdtftpesmtpfsnmpWhichapplicationlayerprotocolallowsnetworkdevicestoexchangemanagementinformation答案:baSMTPbSNMPchttpdTFTPeFTPWhatisthepurposeofTCPUDPportnumbers答案:aatrackdifferentconversationscrossingthenetworkatthesametimebidentifythenumberofdatapacketsthatmaybesentwithoutacknowledgmentcindicatethebeginningofathreewayhandshakedreassemblethesegmentsintothecorrectorderWhichfeaturesallowTCPtoreliablyandaccuratelytransportandregulatetheflowofinformationfromsourcetodestination(Choosethree)答案:adeasequencingnumbersbasynchronizationcbuffersdslidingwindowseacknowledgmentsfsegmentationDuringdatatransfer,whatarethemainresponsibilitiesofthereceivinghost(Choosetwo)答案:bcabandwidthbacknowledgmentcreassemblydthroughputeencapsulationfsegmentationWhichofthefollowingservicesisusedtotranslateawebaddressintoanIPaddress答案:batelnetbdnscdhcpdwins

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