Daily Practice · GCSE Computer Science

Daily Practice - GCSE Computer Science

Systems, data representation, networks, algorithms and programming.

11th November 2025

5 questions · GCSE · 123 questions in this band

1
Networks and Topologies
Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
2
Network Security
A simple cipher shifts every letter 2 places forward in the alphabet, wrapping around so Y becomes A and Z becomes B. Encrypt the plaintext CAT using this cipher.
3
Ethical, Legal, Cultural and Environmental Impact
State whether the source code of proprietary (closed source) software is normally available for the public to view.
4
Network Protocols and Layers
Name the four layers of the TCP/IP model in order from the one closest to the user.
5
Algorithms
An array contains [9, 2, 6], to be sorted using insertion sort. Show the state of the array after each new element has been inserted into its correct position.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Every sheet is deterministic: the same date always regenerates the same five questions. All of November 2025, including the monthly compilation PDF.