Daily Practice - GCSE Computer Science
Systems, data representation, networks, algorithms and programming.
18th March 2023
- 1Networks 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.
- 2Network Security
State one weakness of a simple shift cipher compared to modern encryption methods used on networks.
- 3Ethical, 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.
- 4Network Protocols and Layers
A user reads the same email on a phone and a tablet, and deleting it on one deletes it on the other. Which protocol is in use and why?
- 5Algorithms
Calculate the maximum number of comparisons required by a binary search on a sorted list of 512 items.
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