08级ip网络技术基础(英)试卷a-答案

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1、a觉遵守考试规则9诚信考试9绝不作弊题号一二三四五六七八九十总分得分院（系）班级学号姓名得分B.busA.starC.ringD.fullyconnected南京邮电大学2010/2011学年第一学期《IP网络技术基础（英）》期末试卷（A）一、Givethefullformofthefollowingabbreviation:(l>5X10points)1.ARQ:Automaticrepeatrequest2.SMTP：SimpleMailTransferProtocol3.OSPF：OpenSystemsPathFirst4.FDDI:FiberDistr

2、ibutedDataInterface5.CSMA/CD:CarrierSenseMultipleAccesswithCollisionDetect6.FTP:FileTransferProtocol7.IEEE：InstituteofElectricalandElectronicEngineers8.IPv4:InternetProtocolversion49.ICMP:InternetControlMessageProtocol10.TCP:TransmissionControlProtocol得分二、Choosethecorrectansweramong

3、fouroptions.(2x10points)1.Theaddress230.200.104.32canbeclassifiedasClass(D).A.AB.BC.CD.D2.Ifthereisanemptyentryforthedestinationofaframe，atransparentbridgewill(C).A.discardthepacketB.createanerrorreportC.usethefloodingalgorithm.D.forwardittoadefaultbridge1.Thenetworkshowninthefollow

4、ingpictureuses(B)topology.1.IEEE802.11uses(D)asitsMACprotocol.A.IPB.CSMA/CDC.ARPD.CSMA/CA2.CableTVuses(C)asitsmultiplexingtechnique.A.WDMAB.TDMC.FDMD.CDM3.AnIPv6addresshas(D)bits.A.16B.32C.64D.1284.Thetasksoftransportlayerdon’tinclude(DA.connectionmanagementB.flowcontrolC.errordetec

5、tionD.forwardingsegments5.Switchinghubsare(B)equipments.A.layer1B.layer2C.layer3D.layer46.TheDataLinklayerisdividedintoMACsublayerand(C)A.PresentationlayerB.SessionlayerC.LogicLinklayerD.Transportlayer7.TheadvantageswhichIPv6hasbeyondIPv4donotinclude(D).A.thecapabilityofaddressB.hos

6、tmobilityC.moresecureD.feasibility得#三、ArethefollowingstatementsTUREorFALSE?(1X10points)1.Inthecaseofmessageswitching，routersarededicatedandmaynotbereusedimmediatelyafterthetransmissionofamessage.(X)2.NowLANsareoftenconnectedusingcoaxialcableinsteadoftwistedwiresbecauseofthebetterbit

7、ratesandresistancetoexternalnoise.(X)3.0-persistentCSMAisthesamewithnonpersistentCSMA.(X)4.Stop-and-waitprotocolmustwaitforaseparateACKforeachframebeforesendingthenext.(V)5.CSMA/CDdoesn’trequireexplicitacknowledgement.(V)6.Transceiverhasahardwareaddress.(X)7.UDPoffersconnectionlesss

8、ervice.(V)8.Errorde