What is a protocol and what are the types of protocol

definitions :

- the official procedure or system of rules governing affairs of state or diplomatic occasions.

- the original draft of a diplomatic document, especially of the terms of a treaty agreed to in conference and signed by the parties.

the different types of protocol :

Common Internet protocols include TCP/IP (Transmission Control Protocol/Internet Protocol), UDP/IP (User Datagram Protocol/Internet Protocol), HTTP (HyperText Transfer Protocol) and FTP (File Transfer Protocol). TCP/IP is a stream protocol. This means that a connection is negotiated between a client and a server.