AQA A-level Computer Science (7517)Specification point 4.9.3.1

AQA 7517 4.9.3.1: The Internet and how it works

The free BugBot lessons that teach this point, a robot to try it on, and the past-paper questions that test it.

Lessons that teach it

1. A12.3 How the Internet works Networks and the web
   Packet switching, routers and gateways, URLs, fully qualified domain names and DNS.
2. A12.10 Project: a reliable link Networks and the web
   Receive a route as packets out of order, reject the damaged one, and drive it.

Try it on a robot

The task from A12.3 How the Internet works, running here. Change the program and press Run.

The specification is AQA's own document; this page says which of our lessons teach point 4.9.3.1 and is not endorsed by the board.