Protocol Architecture asks of communications are broken up into modules Each module( or layer can have its own protocol In very general terms, communications can be said to involve three components: applications, computers, and networks For example, file transfer could use three modules(or layers -File transfer application Communications service module Network access module The stack of protocols is called"Protocol Stack Or protocol architecture 1414 Protocol Architecture • Tasks of communications are broken up into modules — Each module (or layer) can have its own protocol • In very general terms, communications can be said to involve three components: applications, computers, and networks. • For example, file transfer could use three modules (or layers) — File transfer application — Communications service module — Network access module • The stack of protocols is called “Protocol Stack” — Or Protocol Architecture