How the Internet Works

Classes 6–12 · about 6 minutes · free, no sign-up

What you will learn

Explain that data travels as numbered packets, that routers forward packets along the quickest available route, and that the network survives broken links because there are many paths.

How to play

  1. Type a message and press send. Watch the packets hop from router to router.
  2. Tap a cable to cut it, then send again and see the new route.
  3. Turn on the busy network and see packets arrive out of order.
  4. Finish three challenges, including putting jumbled packets back in order.

Go deeper

Notes, practice questions and tests for the same topic:

Class 8 Computers NCERT chapters → Class 11 Computer Science NCERT chapters →

More in Cyber Safety Lab

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