Daily Practice - GCSE Computer Science
Systems, data representation, networks, algorithms and programming.
23rd August 2025
- 1System Software
What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?
- 2Networks and Topologies
Calculate the number of cables needed to connect 8 computers in a full mesh topology, where every computer connects directly to every other computer.
- 3Network Security
State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
- 4Ethical, 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.
- 5Network Protocols and Layers
Name the four layers of the TCP/IP model in order from the one closest to the user.
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