OCR A Level Computer Science Paper 2 Question Paper

Download the official OCR A Level Computer Science H446/02 Algorithms and Programming question paper for the June 2025 examination series. This examiner-authentic OCR PDF contains the complete set of OCR assessment questions covering algorithms, programming techniques, data structures, searching, sorting, object-oriented programming and computational thinking.

The paper includes detailed questions on bubble sort, insertion sort, quick sort, recursion, divide-and-conquer algorithms, binary and linear search, stacks, linked lists, Dijkstra’s algorithm, A* heuristics, binary search trees, pipelining, data mining and object-oriented programming. Students are required to analyse algorithms, complete pseudocode, trace data structures and evaluate computational methods using both short-answer and extended-response questions.

Programming tasks in the paper involve writing and correcting pseudocode for stack operations, linked lists, array processing and object-oriented methods. The assessment also includes debugging within IDEs, global and local variables, parameter passing by value, traversal algorithms, graph theory and algorithm efficiency using big-O notation. Extended-response questions require evaluation of search algorithms, pipelining and linked-list implementations using structured technical discussion.

This OCR H446/02 June 2025 question paper is ideal for timed exam practice, mock examinations, programming revision and OCR A Level Computer Science preparation. It helps students understand OCR question structure, command words, mark allocation and examiner expectations for algorithms and programming topics across the OCR specification.

Perfect for students preparing for the 2026 OCR examination series, teachers building mock assessments and tutors supporting OCR Computer Science revision. Pair this paper with the official OCR H446/02 June 2025 mark scheme for complete examiner-guided preparation and assessment practice. Fully compatible with desktop, tablet and mobile PDF viewing.

This document is designed for OCR A Level Computer Science students preparing for the 2026 examination series, especially candidates studying algorithms and programming. It is particularly useful for learners aiming to improve programming accuracy, computational thinking, algorithm analysis and understanding of OCR examiner expectations.

It is also highly valuable for teachers, tutors, revision-course providers and independent learners who require authentic OCR exam material for classroom assessment, timed coding practice, mock examinations, pseudocode exercises and targeted OCR Computer Science revision.