TCP/IP()layerprotocolsprovideservicestotheapplication()runningonacomputer.Theapplicationlayerdoesnotdefinetheapplicationitself,butratheritdefines()thatapplicationsneed--liketheabilitytotransferafileinthecaseofHTTP.Inshort,theapplicationlayerprovidesan()betweensoftwarerunningonacomputerandthenetworkitself.TheTCP/IPapplicationlayerincludesarelativelylargenumberofprotocols,withHTTPbeingonlyoneofthose.TheTCP/IP(请作答此空)layerconsistsoftwomainprotocoloptions--theTransmissionControlProtocol(TCP)andtheUserDatagramProtocol(UDP).
A.application B.session C.physical D.transport正确答案D
