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This is the 7th video in a series of worked solutions designed to help students revising for GCSE Computer Science Paper 1.

Past paper used in this video:

The paper is based on (but not the same as) the Edexcel Paper 1 for June 2018.

For more information click here:

This video includes the answers to Question 2c and introduces Question 3a

Learning objectives:
3.3.3: understand how a lossless, run-length encoding (RLE) algorithm works

3.4.2: understand how a Caesar cipher algorithm works

5.1.7: understand characteristics of network topologies (bus, ring, star, mesh)

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