計算機(jī)英語劉藝-王春生-第三版-課后答案第八章

UnitEight:ComputerNetworksUnitEight/SectionAI.Fillintheblankswiththeinformationgiveninthetext:1.MAN2.open;closed3.bus4.token5.Ethernet6.client/server7.equals;temporary8.networkII.TranslatethefollowingtermsorphrasesfromEnglishintoChineseandviceversa:1.fileserver文件服務(wù)器2.carriersense載波檢測，載波監(jiān)聽3.protocolsuite協(xié)議組，協(xié)議集4.peer-to-peermodel對等模型5.bustopologynetwork總線拓?fù)渚W(wǎng)絡(luò)6.inter-machinecooperation機(jī)器間合作，計算機(jī)間合作7.Ethernetprotocolcollection以太網(wǎng)協(xié)議集8.proprietarynetwork專有網(wǎng)絡(luò)9.utilitypackage實用軟件包，公用程序包10.starnetwork星形網(wǎng)絡(luò)11.局域網(wǎng)localareanetwork(LAN)12.令牌環(huán)tokenring13.無線網(wǎng)絡(luò)wirelessnetwork14.封閉式網(wǎng)絡(luò)closednetwork15.環(huán)形拓?fù)浣Y(jié)構(gòu)ringtopology16.客戶機(jī)/服務(wù)器模型client/servermodel17.網(wǎng)絡(luò)應(yīng)用程序networkapplication18.進(jìn)程間通信interprocesscommunication19.打印服務(wù)器printserver20.廣域網(wǎng)wideareanetwork(WAN)III.Fillineachoftheblankswithoneofthewordsgiveninthefollowinglist,makingchangesifnecessary:Computerscancommunicatewithothercomputersthroughaseriesofconnectionsandassociatedhardwarecalledanetwork.Theadvantageofanetworkisthatdatacanbeexchangedrapidly,andsoftwareandhardwareresources,suchashard-diskspaceorprinters,canbeshared.Networksalsoallowremoteuseofacomputerbyauserwhocannotphysicallyaccessthecomputer.Onetypeofnetwork,alocalareanetwork(LAN),consistsofseveralPCsorworkstationsconnectedtoaspecialcomputercalledaserver,oftenwithinthesamebuildingorofficecomplex.Theserverstoresandmanagesprogramsanddata.Aserveroftencontainsallofanetworkedgroup’sdataandenablesLANworkstationsorPCstobesetupwithoutlargestoragecapabilities.Inthisscenario(方案),eachPCmayhave“l(fā)ocal”memory(forexample,aharddrive)specifictoitself,butthebulkofstorageresidesontheserver.ThisreducesthecostoftheworkstationorPCbecauselessexpensivecomputerscanbepurchased,anditsimplifiesthemaintenanceofsoftwarebecausethesoftwareresidesonlyontheserverratherthanoneachindividualworkstationorPC.IV.TranslatethefollowingpassagefromEnglishintoChinese:在計算機(jī)科學(xué)中，網(wǎng)絡(luò)是指由通信設(shè)備連接在一起的一組計算機(jī)及其相關(guān)設(shè)備。網(wǎng)絡(luò)可采用電纜等永久性連接，或者采用通過電話或其他通信鏈路而實現(xiàn)的臨時性連接。網(wǎng)絡(luò)可以小到由少數(shù)計算機(jī)、打印機(jī)以及其他設(shè)備構(gòu)成的局域網(wǎng)，也可以由分布在廣大地理區(qū)域的許多小型與大型計算機(jī)組成。計算機(jī)網(wǎng)絡(luò)無論大小，其存在的目的均在于為計算機(jī)用戶提供以電子方式進(jìn)行信息通信與傳送的方法。有些類型的通信是簡單的用戶到用戶消息；有些稱為分布式過程，可能涉及數(shù)臺計算機(jī)，以及在執(zhí)行任務(wù)中分擔(dān)工作量或進(jìn)行協(xié)作。UnitEight/SectionBI.Fillintheblankswiththeinformationgiveninthetext:1.terminator2.sub-central3.tree;central4.meshII.TranslatethefollowingtermsorphrasesfromEnglishintoChineseandviceversa:1.routingpath路由選擇通路2.dual-ringtopology雙環(huán)形拓?fù)浣Y(jié)構(gòu)3.extendedstartopology擴(kuò)展星形拓?fù)浣Y(jié)構(gòu)4.backbonenetwork基干網(wǎng)，骨干網(wǎng)5.meshtopology網(wǎng)格拓?fù)浣Y(jié)構(gòu)6.同軸電纜coaxialcable7.邏輯拓?fù)浣Y(jié)構(gòu)logicaltopology8.無沖突連網(wǎng)環(huán)境collision-freenetworkingenvironment9.樹形拓?fù)浣Y(jié)構(gòu)treetopology10.目的地節(jié)點destinationnodeUnitEight/SectionCI.Fillintheblankswiththeinformationgiveninthetext:1.repeater2.data-link3.gateway4.routerII.TranslatethefollowingtermsorphrasesfromEnglishintoChineseandviceversa:1.destinationaddress目的地址2.performancedegradation性能退化（或降級）3.four