Daily Practice - GCSE Computer Science
Systems, data representation, networks, algorithms and programming.
30th January 2026
- 1Network Security
State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
- 2Ethical, Legal, Cultural and Environmental Impact
A streaming company records which shows each user watches and uses this to recommend similar shows. Explain one ethical concern this could raise, even if the company only uses the data to improve recommendations.
- 3Network Protocols and Layers
Name the four layers of the TCP/IP model in order from the one closest to the user.
- 4Algorithms
Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
- 5Translators and Integrated Development Environments (IDEs)
State why a program written in a high level language must be translated.
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