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ID:43797165
大小:1.20 MB
页数:27页
时间:2019-10-14
《计算机专业英语 王凤岭 第五章》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、NetworkTechnologyandWebDesignToolsUNITFIVELessonOneInternetProtocolsLessonTwoTransmissionControlProtocol(TCP)LessonThreeMacromediaDreamweaverMX2004BackgroundTheInternetprotocolsaretheworld'smostpopularopen-system(nonproprietary)protocolsuitebecausetheycanbeusedtoco
2、mmunicateacrossanysetofinterconnectednetworksandareequallywellsuitedforLANandWANcommunications.LessonOneInternetProtocolsprotocoln.草案,协议nonproprietary开放性的suite套,组across越过,横过interconnect使互相连接communication信息,通讯communicate沟通TheInternetprotocolsconsistofasuiteofcommuni
3、cationprotocols,ofwhichthetwobestknownaretheTransmissionControlProtocol(TCP)andtheInternetProtocol(IP).TransmissionControlProtocol传输控制协议InternetProtocol网际协议InternetProtocol(IP)TheInternetProtocol(IP)isanetwork-layer(Layer3)protocolthatcontainsaddressinginformationa
4、ndsomecontrolinformationthatenablespacketstoberouted.network-layeraddressroute网络层地址发送IPhastwoprimaryresponsibilities:providingconnectionless,best-effortdeliveryofdatagramsthroughaninternetwork;andprovidingfragmentationandreassemblyofdatagramstosupportdatalinkswithd
5、ifferentmaximum-transmissionunit(MTU)sizes.responsibilityn.责任,职责connectionless无连接delivery传输,递送datagram数据包fragmentation分裂,破碎reassembly重新组装linkn.连结物,链接vt.连结;vi.连接起来maximumn.最大量,极大adj.最高的,最多的,最大极限的1.Youaregoingtomakeit.你准行!2.Youaregoingtowin.你会赢!3.Youaremyonlyhope.你是我
6、的希望。4.Youarealmostthere.Keeptrying,sticktoit.你马上就要成功了,坚持,坚持下去!5.Youarethebest.你真是顶呱呱![这是母亲对儿子、女孩对男友常说的话。]68.Youarefantastic.你太棒了!英语口语练习材料TheTCPprovidesreliabletransmissionofdatainanIPenvironment.TCPcorrespondstothetransportlayer(Layer4)oftheOSIreferencemodel.Amongt
7、heservicesTCPprovidesarestreamdatatransfer,reliability,efficientflowcontrol,full-duplexoperation,andmultiplexing.LessonTwoTransmissionControlProtocol(TCP)TCPoffersreliabilitybyprovidingconnection-oriented,end-to-endreliablepacketdeliverythroughaninternetwork.connec
8、tion-oriented以连接为导向的end-to-end端到端的TCPConnectionEstablishmentConnectionestablishmentisperformedbyusinga"three-wayhandshake"mechanism.Athree-wayhan
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