Edexcel 1CP2 4.1.5: Network speeds
The free BugBot lesson that teach this point, a robot to try it on, and the past-paper questions that test it.
What it covers
Why does a video buffer at home in the evening but not in the morning? Why is a game laggy on Wi-Fi but fine on a cable? This lesson looks at what makes a network fast or slow, how to calculate how long a file takes to send, and measures the delay on the robots' own radio.
- Speed and bandwidth
- Calculating transfer time
- What slows a network down?
- Measuring latency
Or do it in the simulator, with tasks that mark themselves
Lessons that teach it
- F10.3 Network performance Networks
Bandwidth, transfer time calculations, what slows a network, and measuring latency with a ping.
Try it on a robot
The task from F10.3 Network performance, running here. Change the program and press Run.
The specification is Edexcel's own document; this page says which of our lessons teach point 4.1.5 and is not endorsed by the board.