icarnegie ssd8选择题答案

icarnegie ssd8选择题答案

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时间:2017-11-15

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1、1.WhichofthefollowingparameterscanbespecifiedintheheaderofarequestintheHypertextTransferProtocol(HTTP)?ThetypesofimageformatsthatabrowserunderstandsThetypeofbrowser(e.g.,Netscape,InternetExplorer)makingtherequestThemethodbywhichtherequestistobesatisfied—for

2、example,whethertherequestisaGETofaformsubmission(a)IIIonly(b)I,II,andIII(c)IIandIIIonly(d)IandIIonlyCorrectansweris(b)Feedback:Seesection1.1.1ofthecoursenotes.--------------------------------------------------------------------------------2.Whichofthefollow

3、ingdistinguishstreamsockets(e.g.,TCP)fromdatagramsockets(e.g.,UDP)?Streamsocketsguaranteedeliveryofthedatasentthroughthem.Streamsocketscanbeusedtosendapplicationdatatoaremotehost,whereasdatagramsocketscanonlysendcontrolcommands.Streamsocketshavegreateroverh

4、ead.(a)IandIIIonly(b)IandIIonly(c)IIandIIIonly(d)IonlyCorrectansweris(a)Feedback:Seesection1.1.1ofthecoursenotes.--------------------------------------------------------------------------------3.Acomputersends100Kbytesofaggregatedatatoanothercomputerthrough

5、thenetwork.Ifthistransmissiontimetakes10secondsandsetuptimeisnegligible,thethroughputofthisnetworkis(a)notabletobedeterminedwiththeinformationgiven(b)exactly10Kbps(c)intherangefrom60to120Kbps(kilobitspersecond)(d)intherangefrom6to12Kbps(kilobitspersecond)Co

6、rrectansweris(c)Feedback:Seesection1.1.4ofthecoursenotes.--------------------------------------------------------------------------------4.Anapplicationonacomputersendsdatathroughasockettoanothercomputer.Whichofthefollowingarespecifiedbythecommunicationprot

7、ocol?ThecontentsofthemessagebodyThespeedoftransmissionTheheaderformat,whichspecifiestheheaderfieldsizesandmeanings(a)IIandIIIonly(b)IIIonly(c)Ionly(d)IandIIIonlyCorrectansweris(b)Feedback:Seesection1.1.1ofthecoursenotes.-------------------------------------

8、-------------------------------------------5.Anadvantageofdefiningnetworkprotocolsthroughagreementamongmanycompaniesandindividualsisthat(a)differentimplementationscanthencommunicatewitheachother(b)othe

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