Practice Internet in CS Thinking

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

A global network of interconnected computer networks that communicate using standardized protocols (TCP/IP).

The internet is the world's biggest network โ€” it connects smaller networks together so any device can talk to any other device, anywhere.

Example 1

easy
What is the difference between the internet and the World Wide Web (WWW)?

Example 2

medium
Describe what happens step by step when you type 'www.example.com' into a web browser and press Enter.

Example 3

medium
Explain what an IP address is and why DNS is needed. What would browsing the web be like without DNS?

Example 4

hard
Explain why the internet is described as a 'network of networks'. How does this decentralised structure make it resilient?