计算机网络基础知识试卷及答案.doc

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1、计算机网络基础知识试卷及答案BasicknowledgeofcomputernetworksandanswersOne,fillintheblanks:(1pointperminute)Theelementsofacomputernetwork:atleasttwocomputers,(wired)or(wireless)communicationmedia・Theapplicationlayerofthecomputernetworkarchitectureistheinterface(network

2、system)and(human)interface,andthetaskistoprovideallkindsofdirectservicetotheuser・TCP/IPprotocol(TCP/IP)protocol(TCP/IP)protocol(TCP/IP)protocol(TCP/IP)protocol(TCP/IP)protocol(TCP/IP)protocol(TCP/IP)protocol(TCP/IP)protocol(TCP/IP)protocol(TCP/IP)protoco

3、l(TCP/IP)protocolLiliyang(username)isinliliyang@263.net.Thefirstinternet-connectednetworkswere(ARPANET)and(MILNET)・TheusualcablecommunicationmediumintheLANis(double-stranded)and(coaxialcable)・Second,thechoiceofchoice:(2pointsperquestion)Thefirstcomputern

4、etworkwas(A).A.ARPANETb.e.thernetC.BITNETD.InternetThemainpurposeofthecomputernetworkistoimplement(B).Datacommunicationb・resourcesharingC・remotelogind・distributedprocessingtThefunctionofamodemisimplementation(D)・A.digitalsignalencodingb・digitalsignalC・Th

5、eamplificationD.DigitalsignalandanalogsignalconversionCurrently,thereareabout(B)IPaddressesontheInternet.A:140,000b.4billionc.5ndlliond.32ndllionInthefollowingtop-leveldomainaddresses,thebusinesswebsiteis(B)・A.govb・comThebuilt-inbrowsersoftwareforWindows

6、98is(A).A.InternetExplorerb・o.utlookExpressC・NetmeetingD.CominformationThefirstrequirementforsendingorreceivinganE-mailisthatthereshouldbeanE-mailaddress,andthecorrectformis(A).Theusername@domainB.Username#Thenameoftheuser・ThenameoftheuserInthefollowingf

7、ouritems,thelegalE-mailaddressis(D).A.wang-em・hxing・com・cnC・em.hxing・wangD・wang@em・hxing.com・cnThenetworkarchitecture(C)layerprovidesreliabledatatransferbetweentheend-to-end・Networklayerb・datalinklayerC・transportlayerd.sessionlayerThemostfrequentuseofInt

8、ernetservicesis(D).A.BBSdiscussionb・remoteloginC.e-mailD.WWW(2)Theworldistheworld，slargestnetwork・(to)AllcomputersconnectedtotheInternethaveauniqueIPaddress,(wrong)FTPistheremoteloginprotocoL（wTon呂）Thedomainnameofahostisco