OCR J277 1.3.2: Wired and wireless networks, protocols and layers
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
- F10.5 Addresses and packets Networks
MAC and IP addresses, IPv4 and IPv6, and packet switching. - F10.7 Protocols Networks
Standards, and TCP, UDP, IP, HTTP, HTTPS, FTP, SMTP, POP and IMAP. - F10.8 Layers Networks
The four-layer TCP/IP model, encapsulation, and why layers are used. - F10.9 Project: reliable delivery Networks
Deliver a report over a lossy radio with packets, acknowledgements and resending.
Try it on a robot
The task from F10.5 Addresses and packets, running here. Change the program and press Run.
The specification is OCR's own document; this page says which of our lessons teach point 1.3.2 and is not endorsed by the board.