Protocols

Protocols

1. Examples of rules

   • how the receiving device will indicate that it has received a message
   • handshaking
     • where 2 devices establish a readiness to communicate
   • how the sending device will indicate the the message has finished sending
   • the type of error checking to be used
   • agreement on the data compression method to be used

2. Definition

   • an agreed-upon format which allows 2 devices to communicate

3. Protocol types

   • HTTP
     • Protocol used to transfer multimedia web pages over the Internet
     • HyperText Transfer Protocol
   • FTP
     • File Transfer Protocol
     • Protocol used when copying a files from one location to another via a network or Internet
     • Used to transfer large files
     • Allows broken communications to resume transferring a files rather than restarting
   • TCP/IP
     • Transmission Control Protocol/Internet Protocol
     • 2 protocols combine to allow communication between CSs on a network
     • IP = protocol that sends out the format of packs and an addressing system
     • TCP = protocol that allows packets to be sent and received between CSs

4. Protocol Stacks

   • Definition
     • when a programmer takes the rules of a protocol and implements them when creating a program