AQA 7517 4.9.4.2: Standard application layer protocols
The free BugBot lesson that teach this point, a robot to try it on, and the past-paper questions that test it.
Lessons that teach it
- A12.4 The TCP/IP stack and protocols Networks and the web
The four layers, encapsulation, ports and sockets, and HTTP, HTTPS, FTP, SMTP, POP3 and SSH.
Try it on a robot
The task from A12.4 The TCP/IP stack and protocols, running here. Change the program and press Run.
The specification is AQA's own document; this page says which of our lessons teach point 4.9.4.2 and is not endorsed by the board.