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《计算机专业英语》第09章在线测试.doc《计算机专业英语》第09章在线测试《计算机专业英语》第09章在线测试剩余时间:59:56答题须知:1、本卷满分20分。2、答完题后,请一定要单击下面的“交卷”按钮交卷,否则无法记录本试卷的成绩。3、在交卷Z前,不要刷新木网页,否则你的答题结果将会被淸空。第一题、单项选择题(毎题1分,5道题共5分)1、work.A、modelKB、protocol口C、dialog2D、query2^ThepurposeoftheAistoprovidefullyintegratedanalogservicestousers.EA、ISDN口B.WWW3、A(n)口C、FTP口D、HTTPisaconnectingdevicethatonlyregeneratesthesigna1.A、hub目B、repeaterC、router口D、switch4^WhereasarepeateroperatesonlyinthephysicallayeroftheOSTmodel,abridgeoperatesinboththephysicallayerandthelayeroftheOSImodel.A>workLayer5、A(n)目C、data-link口D、works,pletelydifferentsetofprotocols,municate.A>hubgateway口C、switchD、router第二題、多项选择题(每题2分,5道题共10分)1、putersCRTsC、 printerskeyboards2、DTEis•□A、DigitalT-carrierB.dataterminalequipment□C、satellite17D、thelastpieceofequipmentthatbelongedtothesubscriberinadatalinksystem3xThereareAB_betweentheDTEs.□A>municationsequipment□C>digital-to-analogconverter[)、willbereplacedbyanupd_atedstandard4、providestransparenttransferofdatabetweenendusers,providingreliabledatatransferservicestotheupperlayers・A>TheTransportLayer□B、SessionLayer□C>PresentationLayer□[)、ApplicationLayer□workLayer5、TheApplicationlayerinTCP/IPModeliscorrcsoondto inOSIModelA、ApplicationLayerB、PresentationLciyerC、SessionLayer□[)、workLayer第三题.判断题(每题1分,5道题共5分)1、 worklayerandIPmeansitisonthetransportlayerseparately.正确2、ALAN(works)workdevicesconnectedtogetherusuallywithinthedifferentbuildings・monuse

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