2025年網(wǎng)絡(luò)編程英文試卷及答案

一、單項選擇題（總共10題，每題2分）1.Whichofthefollowingprotocolsisusedforemailtransmission?A.FTPB.SMTPC.HTTPD.TCP2.WhatisthedefaultportnumberforSSH?A.21B.22C.23D.803.Whichofthefollowingisastatelessprotocol?A.TCPB.UDPC.SCTPD.IP4.InHTTP,whatmethodisusedtosubmitdatatobeprocessedtoaspecifiedresource?A.GETB.POSTC.PUTD.DELETE5.Whichofthefollowingisusedtoestablishasecureconnectionoveraninsecurenetwork?A.SSLB.TLSC.SSHD.FTPS6.WhatisthemaximumlengthofanIPv4address?A.8bytesB.16bytesC.32bytesD.64bytes7.WhichofthefollowingisalayerintheOSImodel?A.BrowserB.TransportC.ApplicationD.Database8.WhatisthepurposeoftheDNS?A.ToroutepacketsB.TotranslatedomainnamestoIPaddressesC.ToencryptdataD.Tomanagefiles9.Whichofthefollowingisaprotocolusedforremotelogin?A.FTPB.TelnetC.HTTPD.SMTP10.Whatistheprocessofdividingalargemessageintosmallerpacketsfortransmission?A.FragmentationB.EncapsulationC.MultiplexingD.Demultiplexing二、多項選擇題（總共10題，每題2分）1.WhichofthefollowingarelayersintheTCP/IPmodel?A.ApplicationB.TransportC.NetworkD.Physical2.WhatarethecomponentsofaURL?A.ProtocolB.DomainnameC.PortnumberD.Path3.WhichofthefollowingprotocolsarepartoftheInternetProtocolsuite?A.TCPB.UDPC.ICMPD.HTTP4.WhatarethefunctionsoftheTCPprotocol?A.ReliabledatatransmissionB.Connection-orientedC.ConnectionlessD.Flowcontrol5.Whichofthefollowingaremethodstoimprovenetworkperformance?A.LoadbalancingB.CachingC.CompressionD.Encryption6.WhatarethetypesofDNSrecords?A.ArecordB.CNAMErecordC.MXrecordD.IPrecord7.WhichofthefollowingarecommonHTTPstatuscodes?A.200OKB.404NotFoundC.500InternalServerErrorD.301MovedPermanently8.WhataretheadvantagesofusingTCPoverUDP?A.ReliabledeliveryB.OrdereddeliveryC.LoweroverheadD.Fastertransmission9.Whichofthefollowingaresecurityprotocolsusedinnetworkcommunication?A.SSLB.TLSC.SSHD.IPsec10.Whatarethecomponentsofasocketaddress?A.IPaddressB.PortnumberC.ProtocolD.Hostname三、判斷題（總共10題，每題2分）1.FTPisasecureprotocolforfiletransfer.2.TheHTTPprotocolisstateless.3.TheTCPprotocolisconnectionless.4.DNStranslatesIPaddressestodomainnames.5.TheOSImodelhassevenlayers.6.TheTCP/IPmodelhasfourlayers.7.UDPismoreefficientthanTCPforreal-timeapplications.8.TheIPprotocolisresponsibleforroutingpackets.9.TheSSHprotocolisusedforsecureremotelogin.10.TheHTTPSprotocolisanextensionofHTTP.四、簡答題（總共4題，每題5分）1.ExplainthedifferencebetweenTCPandUDP.TCPisaconnection-orientedprotocolthatensuresreliabledatatransmissionwitherrorcheckingandretransmission.Itisslowerduetotheoverheadofestablishingandmaintainingconnections.UDPisaconnectionlessprotocolthatisfasterbutdoesnotguaranteedeliveryororderofpackets.2.DescribetheroleofDNSinnetworkcommunication.DNStranslateshuman-readabledomainnamesintoIPaddresses,whicharerequiredforroutingdatapackets.Itactsasaphonebookfortheinternet,allowinguserstoaccessresourcesusingeasy-to-remembernames.3.WhatisthepurposeoftheHTTPprotocol?TheHTTPprotocolisusedfortransferringhypertextrequestsandinformationontheWorldWideWeb.Itdefinesmethodsforcommunicationbetweenclients(browsers)andservers,enablingtheretrievalofwebpages,images,andotherresources.4.Explaintheconceptofsocketprogramming.Socketprogrammingisamethodofcreatingnetworkapplicationsusingsockets.Asocketisanendpointforcommunicationbetweentwodevicesonanetwork.Itprovidesastandardizedinterfaceforsendingandreceivingdataovervariousnetworkprotocols,allowingapplicationstocommunicatewitheachother.五、討論題（總共4題，每題5分）1.DiscusstheadvantagesanddisadvantagesofusingTCPoverUDP.Advantages:Reliabledelivery,ordereddelivery,anderrorchecking.Disadvantages:Higheroverheadduetoconnectionsetupandmaintenance,makingitslowerthanUDPforreal-timeapplications.2.ExplainhowDNSresolutionworks.DNSresolutioninvolvesqueryingaseriesofDNSserverstotranslateadomainnameintoanIPaddress.Theprocessstartswiththerecursiveresolver,whichchecksthelocalcache,thenqueriestherootnameservers,top-leveldomainservers,andfinallytheauthoritativenameserverforthespecificdomain.3.WhatarethesecurityconcernsassociatedwithHTTPandhowcantheybeaddressed?Securityconcernsincludedatabeingsentinplaintext,makingitvulnerabletointerception.ThesecanbeaddressedusingHTTPS,whichencryptsdatausingSSL/TLS,ensuringsecurecommunication.4.Discusstheimportanceofsocketprogramminginmodernnetworkapplications.Socketprogramm