Exam preparation
Sit a real exam, get your score now
Timed practice and mock exams, and live exams that open for everyone at once. Multiple choice and short answers are marked instantly. Written answers and pseudocode are marked by AI against the mark scheme, then you see the model answers.
Lower Secondary
IGCSE / O Level
Number systems: quick test
Binary, denary and hexadecimal conversions with instant marking. Free for everyone.
Paper 1 mini mock: data, hardware and networks
A 15-mark mock in the style of Paper 1. Written answers are marked by AI against the mark scheme.
Paper 2 mini mock: algorithms and pseudocode
Write real Cambridge pseudocode. The AI marks the logic against the mark scheme and accepts any correct solution.
AS & A Level
AS practice: data representation and networks
Two's complement, protocols, compression and packet switching in the style of AS Paper 1.
Live mock (demo): logic and pseudocode
A demonstration of a live exam: it opens for a fixed window and ends for everyone at the same moment. Edit or replace it in the admin panel.