东北大学计算机网络复试资料必看

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1、总分一二三四五……………○……………密……………○……………封……………○…………线………………………………学　院班　级学　号姓　名　　　　　　　　　　　课程名称：计算机网络（ComputerNetworks）()10．Withrespecttoprotocollayer,theARPprotocolinTCP/IPcorrespondsto:A.physicallayerB.datalinklayerC.networklayerD.transportlayer()11．ThelowerlayerofOSPFproto

2、coluses:A.UDPB.TCPC.ARPD.IP()12．WhichportonseverdoesthePOP3protocoluse?A.20B.23C.25D.110()13．Whatisthemaskforasmallestsubnetusableinpractice?A.255.255.255.0B.255.255.255.254C.255.255.255.252D.255.255.255.255()14．WhichofthefollowingIPaddressCANNOTbeassignedtoahos

3、t?A.141.107.255.80/16B.201.255.0.11/24C.116.1.0.255/16D.198.121.254.255/24()15．WheninstallingaMODEMtoaPC,theinterfacestandardwetakeis:A.X.25B.RJ11C.RS232D.RJ45()16．WhichofthefollowingisNOTanadvantageofalayermodel?A.Dividingthecomplexnetworkoperationintoamoremana

4、geablelayerapproach.B.Allowingchangestooccurinonelayerwithouthavingtochangealllayers.C.Allowingchangestooccurinalllayerswithouthavingtochangeonelayer.D.Definingastandardinterfacefortheplug-and-playmultivendorintegration.()17．HowmanybitsarethereforanEthernetMACad

5、dress?A.32B.48C.64D.128()18．Theprotocolfortwocomputerstotransportfilesis:A.FTPB.WWWC.TelnetD.SMTP()19．TheInternetcanbetracedbacktoitsorigin:A.ARPANETB.ALOHAC.NEFNETD.Ethernet()20．WhichofthefollowingIPv6addressiscorrect?A.2001:::8::417AB.12.20.3.3:0:0:0:0:0:FFFFC

6、.::145.20.15.29D.145.20.15.29::　　　　　　　　┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄　　Ⅰ.MultipleChoice（20points,1pointforeach）Directions:Choosethecorrectanswerforeachquestionandfillitinthecorrespondingblank.ThereisONLYONEcorrectanswerforeachquest

7、ion.()1．Therearetwokindsofcoaxialcablesusuallyused.Oneisthebasebandcableandtheotheristhebroadbandcable.Theimpedanceofthebasebandcableis:A.50ΩB.70ΩC.75ΩD.90Ω()1．Therearetwokindsofcoaxialcablesusuallyused.Oneisthebasebandcableandtheotheristhebroadbandcable.Theimpe

8、danceofthebasebandcableis:A.50ΩB.70ΩC.75ΩD.90Ω()2．AccordingtotheISO/OSIreferencemodel,theEthernetswitchworkson:A.DatalinklayerB.NetworklayerC.TransportlayerD.Presenta