【答案】计算机专业英语阅读y 过程性评测(39)【参考答案】

判断题:10道,每道2分,总分20 1.Onlyusersneedtoviewtheinternetasanetwork. 正确 错误 2.Datacommunicationsequipment(DCE)acceptstheserialdatastreamfromtheDTE. 正确 错误 3.Virusescancauseprogramscrashingbutcan'tcauseentireharddiskdeleting. 正确 错误 4.Thephysicallayerisconcernedwithtransmittingrawbytesoveracommunicationchannel. 正确 错误 5.WecanusemultimediainEducation,Edutainmentandsoon. 正确 错误 6.Factorsthatinfluencethequalityofamonitorarescreensize,resolution,anddotpitch. 正确 错误 7.Videocamerasareperipheral. 正确 错误 8.TheTCP/IPInternetprotocolsuiteisformedfromfivestandards. 正确 错误 9.Thenetworkarchitectureisalayer-based. 正确 错误 10.Thesetfolayersandprotocolsiscallednetworkarchitecture. 正确 错误 单选题:20道,每道3分,总分60 1.TheOSImodelhas()layers. four five six seven 2.（）：Messagesthataresentelectronicallyoveranetwork. input output data E-Mail 3.ThesourcecodeofaWebpageconsistsof(). words characters wordsandcharacters texts 4.Virusisa(). program computer badman beast 5.()isadevicethatenablesthecomputertohandlesounds. networkcard videocard soundcard monitor 6.TheInternetistheworld'slargestcomputer（）. network device display disk 7.Acomputervirusisacomputerprogramthatiscreatedtomakeandspread()ofitself. programs virus copies files 8.()isusedtocommunicatewithanothercomputerovertelephonelines. keyboard modem mouse printer 9.Thedisplayscreenisthemostcommon()deviceusedtoshowyouwhatthecomputerisdoing. input printing output electronic 10.TheusualaddressforaWebsiteisthe（）pageaddress,althoughyoucanentertheaddressofanypageandhavethatpagesenttoyou. home main host house 11.Youmightworkforanorganizationwhosecomputersystemisspread()abuilding. through by across throughout 12.Oneofthegreatestfeaturesofahome（）istheabilitytoshareoneInternetconnectionsimultaneouslyovertwoormorecomputers. computer device network work 13.TheRGBvalueiscomposedof()components. one two three four 14.The（）ine-mailmessageshasaffectedalmosteverycomputeraroundtheworldandhascausedthedamageofuptoUS$1billioninNorthAmerica. illness virus weakness attachment 15.With（）youcancommunicateinrealtimewithpeopleallaroundtheworld． E-Mail WWW FTP webchat 16.Thebestwaytodescribetheconceptofplayingaguitarisuseof(). asinglephotograph text animation audio 17.A（）isusedtocommunicatewithanothercomputerovertelephonelines. keyboard modem mouse printer 18.Afirewallisa（）systemdesignedtoprotectanorganization’snetworkagainstthreats. operating programming security service 19.Multimediawillbecomeincreasingly()throughouteveryaspectofourlives. pass precise permit pervasive 20.CommunicationthroughtheInternet,the()performsthereversefunction. Astationcontroller(STACO) DTE Datacommunicationsequipment(DCE) CRT 多选题:10道,每道2分,总分20多选题:10道,每道2分,总分20 1.Thegeneraltypesofdesignsforthecommunicationsubnetare(). face-to-facechannels point-to-pointchannels broadcastchannels directchannels 2.Whichofthefollowingstructureisthetopology? star loop tree complete lrregular 3.Wecan()throughtheInternet. getfreesoftware takelongdistancecollaborations sende-mail retrievefiles 4.Themainareasofnetworkuseare(). accesstoremotedatabase computeraidededucation teleconferencing homebanking 5.Virusescandelaytheirattackfor(). days weeks months years 6.Manyvirusesdoharmfulthingssuchas(). deletingfiles changingrandomdataonyourdisk simulatingtypos slowingyourPCdown 7.Datatransferrulesinclude(). simplexcommunication half-duplexcommunication duplexcommunication full-duplexcommunication 8.TheInternetis(). asacommoninternet aspecifickindofinternet definedasthenetworkofnetworks constrainedbyasetofIPsuite 9.Typesofmediainclude(). text full-motionvideo animation audio 10.ApplicationsintheInternetcanbefoundeverywhere:(). inlibraries inconferencerooms athome atthemoon