Cambridge International AS & A Level Computer Science (9618) Paper 21, October/November 2025. Read the question paper free and work through it with an AI tutor that explains every question step by step.
| Exam board | Cambridge International Education |
|---|---|
| Qualification | Cambridge International AS & A Level |
| Subject | Computer Science |
| Syllabus code | 9618 |
| Paper | Paper 21 (9618/21) |
| Exam series | October/November 2025 · all 2025 papers |
| Questions | 8 |
| AI explanations | Available for every question |
The questions in this paper cover these Computer Science syllabus chapters:
| Topic | Questions |
|---|---|
| Chapter 3: Hardware | 1 |
| Chapter 5: System Software | 1 |
| Chapter 6: Security, privacy and data integrity | 1 |
| Chapter 8: Databases | 1 |
| Chapter 9: Algorithm Design and Problem-solving | 3 |
| Chapter 10: Data Types and Structures | 3 |
| Chapter 11: Programming | 3 |
| Chapter 12: Software Development | 2 |
| Chapter 16: System Software | 1 |
| Chapter 17: Security | 1 |
| Chapter 19: Computational thinking and Problem-solving | 1 |
| Chapter 20: Further Programming | 2 |
Every question in 9618 Computer Science Paper 21 — Oct/Nov 2025 and the syllabus topic it tests. Ask the AI tutor about any of them by number, for example "Question 1".
| Question | Topic |
|---|---|
| Question 1 | Chapter 9: Algorithm Design and Problem-solving; Chapter 11: Programming; Chapter 12: Software Development; Chapter 20: Further Programming |
| Question 2 | Chapter 9: Algorithm Design and Problem-solving; Chapter 10: Data Types and Structures; Chapter 11: Programming |
| Question 3 | Chapter 8: Databases; Chapter 10: Data Types and Structures; Chapter 20: Further Programming |
| Question 4 | Chapter 10: Data Types and Structures; Chapter 11: Programming |
| Question 5 | Chapter 9: Algorithm Design and Problem-solving; Chapter 12: Software Development; Chapter 19: Computational thinking and Problem-solving |
| Question 6 | Chapter 3: Hardware |
| Question 7 | Chapter 5: System Software; Chapter 16: System Software |
| Question 8 | Chapter 6: Security, privacy and data integrity; Chapter 17: Security |
This paper tests 12 syllabus topics: Hardware (1 question), System Software (1 question), Security, privacy and data integrity (1 question), Databases (1 question), Algorithm Design and Problem-solving (3 questions), Data Types and Structures (3 questions), Programming (3 questions), Software Development (2 questions), System Software (1 question), Security (1 question), Computational thinking and Problem-solving (1 question), Further Programming (2 questions).
Yes. Open the paper on Aixampapers and ask the AI tutor about any question: it explains each one step by step, written to what Cambridge examiners give marks for.
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