AQA GCSE Computer Science Paper 2 2025 Mark Scheme

Get the official AQA GCSE Computer Science Paper 2 Computing Concepts mark scheme from the June 2025 series (8525/2) — the final v1.0 examiner-approved document used to award marks across the full 90-mark paper. This mark scheme includes accepted answers, alternative responses, and detailed examiner guidance developed through AQA’s standardisation process to ensure consistent marking :contentReference[oaicite:0]{index=0}.

It provides the exact answers and mark allocations for all sections of the exam, including binary and hexadecimal conversions (e.g. 3F = 63), data representation, operating systems, translators, character sets (ASCII/Unicode), image and sound calculations, logic gates and Boolean expressions, memory and storage, cybersecurity, networking, and SQL/database queries. For example, the SQL question requires joining Student and TestResult tables with conditions on GCSEYear and Subject, ordered by score descending.

Use this mark scheme to accurately mark your Paper 2 responses against real AQA examiner standards, identify common mistakes, and understand how marks are awarded in both short-answer and extended-response questions. Pair it with the AQA 8525/2 June 2025 question paper for complete exam practice. Updated for the 2025/2026 academic year and optimised for all devices.

This document is designed for GCSE Computer Science students preparing for the 2026 exam series, including Year 11 candidates, retake students aiming for grades 7–9, and home-schooled learners. It is especially useful for mastering the theory-heavy Paper 2 content and understanding examiner expectations.

It is also essential for teachers, tutors, and revision providers delivering AQA 8525, enabling accurate mock marking, standardisation, and structured walkthroughs of high-mark questions such as cybersecurity and SQL. Parents supporting revision can use it to track progress and identify weak areas.