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