计算机网络基础知识试卷及答案

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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(networksystem)and(human)interface,andthetaskist

2、oprovideallkindsofdirectservicetotheuser・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)protocol(TCP/IP)protocolLiliyang(username)isinliliyang@263.net・Thefirstinternet-connect

3、ednetworkswere(ARPANET)and(MILNET).TheusualcablecommunicationmediumintheLANis(double-stranded)and(coaxialcable)・Second,thechoiceofchoice:(2pointsperquestion)Thefirstcomputernetworkwas(A).A.ARPANETb.e.thernetC.BITNETD.InternetThemainpurposeofthecomputernetworkistoimplement(B)・Datacommunicationb

4、.resourcesharingC.remotelogind.distributedprocessingtThefunctionofamodemisimplementation(D).A.digitalsignalencodingb・digitalsignalC.TheamplificationD.DigitalsignalandanalogsignalconversionCurrently,thereareabout(B)IPaddressesontheInternet.A:140,000b.4billionc.5milliond.32millionInthefollowingt

5、op-leveldomainaddresses,thebusinesswebsiteis(B)・A.govb.comThebuilt-inbrowsersoftwareforWindows98is(A).A.InternetExplorerb・o.utlookExpressC.NetmeetingD.CominformationThefirstrequirementforsendingorreceivinganE-mailisthatthereshouldbeanE-ma.iladdress,andthecorrectformis(A).Theusername@domainB.Us

6、ername#Thenameoftheuser・ThenameoftheuserInthefollowingfouritems,thelegalE-mailaddressis(D)・A.wang-em・hxing.com・cnC.eni.hxing・wangD.wang@em.hxing・com・cnThenetworkarchitecture(C)layerprovidesreliabledatatransferbetweentheend-to-end・Networklayerb.datalinklayerC.transportlayerd.sessionlayerThemost

7、frequentuseofInternetservicesis(D).A.BBSdiscussionb.remoteloginC.e-mailD.WWW(2)Theworldistheworld'slargestnetwork・(to)AllcomputersconnectedtotheInternethaveauniqueIPaddress,(wrong)FTPistheremoteloginprotocoL（wrong）Thedomainnameofahostis