Year 11 - Computing
Web technologies
The internet and web technologies
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will explore how data travels across the internet. They will explore how protocols define communication between devices and the purpose of common network protocols. They will investigate the risks to networks and the methods that can be used to protect a network.
Lesson Summary
You will learn to explain the difference between client-side and server-side processing and describe how search engines return relevant results.
Key Notes
- Client-side and server-side processing run web applications.
- Search engines use indexing and algorithms to return relevant results.
Vocabulary To Learn
- client-side processing: when code runs on the user's device (the client)
- server-side processing: when code runs on a web server and then the content is sent to the user's browser
- web crawler: a program used by search engines to browse and collect information from websites
- search engine optimisation: the process of improving how a website appears in search engine results
Common Mistakes To Avoid
- Search engines instantly know every website and search live each time you type in a query.
3 Quick Questions (With Answers)
1. Describe the system or process from this lesson in clear steps.
Client-side and server-side processing run web applications. Search engines use indexing and algorithms to return relevant results.
2. Define this computing term and give one practical example. 'client-side processing'
when code runs on the user's device (the client). Add one real device or system example to prove understanding.
3. Correct this common computing misconception.
Mistake: Search engines instantly know every website and search live each time you type in a query. Correction: Search engines don't search the web in real time. They use crawlers to index content in advance. When you search, they quickly scan this index to return the most relevant results.
More Lessons In This Unit
Browse all guides in the Year 11 Computing guide library.