计算机专业英语第五章ppt,计算机专业英语第五章.ppt
計算機專業英語第五章
Background The Internet protocols are the world's most popular open-system (nonproprietary) protocol suite because they can be used to communicate across any set of interconnected networks and are equally well suited for LAN and WAN communications. protocol n.草案,協議 nonproprietary 開放性的 suite 套,組 across 越過,橫過 interconnect 使互相連接 communication 信息,通訊 communicate 溝通 The Internet protocols consist of a suite of communication protocols, of which the two best known are the Transmission Control Protocol (TCP) and the Internet Protocol (IP). Transmission Control Protocol 傳輸控制協議 Internet Protocol 網際協議 Internet Protocol (IP) The Internet Protocol (IP) is a network-layer (Layer 3) protocol that contains addressing information and some control information that enables packets to be routed. network-layer address route IP has two primary responsibilities: providing connectionless, best-effort delivery of datagrams through an internetwork; and providing fragmentation and reassembly of datagrams to support data links with different maximum-transmission unit (MTU) sizes. responsibility n.責任,職責 connectionless 無連接 delivery 傳輸,遞送 datagram 數據包 fragmentation 分裂,破碎 reassembly 重新組裝 link n.連結物, 鏈接 vt.連結;vi.連接起來 maximum n.最大量, 極大 adj.最高的, 最多的, 最大極限的 英語口語練習材料 1.You are going to make it.????你準行! 2.You are going to win.????你會贏! 3.You are my only hope.???? 你是我的希望。 4.You are almost there. Keep trying,stick to it.???? 你馬上就要成功了,堅持,堅持下去! 5.You are the best.????你真是頂呱呱![這是母親對兒子、女孩對男友常說的話。] 68.You are fantastic.????你太棒了! The TCP provides reliable transmission of data in an IP environment. TCP corresponds to the transport layer (Layer 4) of the OSI reference model. Among the services TCP provides are stream data transfer, reliability, efficient flow control, full-duplex operation, and multiplexing. TCP offers reliability by providing connection-or
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