计算机网络考研模拟试题[1]（computer simulation exam questions [1]）

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1、计算机网络考研模拟试题[1]（Computersimulationexamquestions[1]）First,individualchoicequestions(40questions,1pointseach,40points)1.theswitchingtechnologywidelyusedincomputernetworksisCA.sourceswitching,B.packetswitching,C.packetswitching,D.,lineswitching2.resourcesthatcanbeshared

2、inacomputernetwork,includingabA.hardware,software,data,B.host,peripherals,softwareC.hardware,programs,data,D.hosts,programs,data3.,thecomputernetworkisdividedintoLANandWAN,anditsclassificationisbasedonaThegeographicalcoverageofA.networks;thetransmissionmediumofB.net

3、worksC.networktopology,D.networkcostprice4.datatransferandexchangebetweentwoentitiesisaA.datacommunication;B.;datacontrol;C.;datatransmission;D.;informationinterchangeInthe5.OSIenvironment,thelowerlayerprovidestwodifferentformsofservicetotheupperlayer,DA.facesconnec

4、tionservicesandobjectorientedservices,B.,objectorientedservices,andconnectionlessservicesC.,objectorientedservicesandcustomerorientedservices,D.,connectedservicesandconnectionlessservices6.descriptionofthedifferencebetweenTCPandUDPprotocols,andtheerrorisCA.UDPprotoc

5、olislesssecurethanTCPprotocolTheB.TCPprotocolisconnectionoriented,andUDPisconnectionlessTheC.UDPprotocolrequiresthateachpacketsentbytheotherpartybeconfirmedD.TCPprotocolhashighreliability,andUDPneedsapplicationlayertoensurethereliabilityofdatatransmission7.instarstr

6、ucture,thecommoncentralnodeisbA.router,B.hub,C.networkadapter,D.modem8.,ifthenetworkshapeisaclosedloopconsistingofthelinkofthesiteandthelinkoftheconnectionsite,thistopologyiscalledCA.startopology,B.bustopology,C.ringtopology,D.treetopology9.thefollowingisnotthenetwo

7、rkoperatingsystem()aA.N0VELLB.WlNDOWSNTC.UN9D.NETWARE10.earlycomputernetworksystemsweremadeupof().DAcomputer,acommunicationline,acomputer,B.Pc_communicationline,aPCmachineC.terminal,acommunicationline,aterminal,aD.computer,acommunicationline,aterminal11.incomputerne

8、tworkcommunication,CistransmittedA.digitalsignals,B.analogsignals,C.digitaloranalogsignals,D.pulsesignals12.thevalidityindexofdatatransmis