Cambridge Advanced Level Computer Science :
Unit 14 : Communication and Internet Technologies
14.1 Protocols
* 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
14.2 Circuit switching, packet switching
* Show understanding of circuit switching
* Show understanding of packet switching
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