Show understanding of why a protocol is essential

for communication between computers

Show understanding of how protocol

implementation can be viewed as a stack, where

each layer has its own functionality

Show understanding of the TCP / IP protocol suite 

Show understanding of protocols (HTTP, FTP,

POP3, IMAP, SMTP, BitTorrent) and their purposes

Four Layers (Application, Transport, Internet, Link)

Purpose and function of each layer

Application when a message is sent from one host

to another on the internet

BitTorrent protocol provides peer-to-peer file sharing