AP Computer Science Principles: Practice Questions, Units, and Exam Format
Data, algorithms, programming, the Internet, and the impact of computing. See exactly what is on the exam, unit by unit, and practise it with a tutor that adapts to you.
Exam format
| Section | Questions | Time | Share of score |
|---|---|---|---|
| Section I: Multiple Choice (end-of-course exam) | 70 | 2 hr | 70% |
Units and exam weights
| Unit | Exam weight | Topics covered |
|---|---|---|
| Big Idea 1: Creative Development | 10 to 13% | Collaboration, Program Function and Purpose, Program Design and Development, Identifying and Correcting Errors |
| Big Idea 2: Data | 17 to 22% | Binary Numbers, Data Compression, Extracting Information from Data, Using Programs with Data |
| Big Idea 3: Algorithms and Programming | 30 to 35% | Variables and Assignments, Data Abstraction, Mathematical Expressions, Strings, Boolean Expressions, Conditionals |
| Big Idea 4: Computing Systems and Networks | 11 to 15% | The Internet, Fault Tolerance, Parallel and Distributed Computing |
| Big Idea 5: Impact of Computing | 21 to 26% | Beneficial and Harmful Effects, Digital Divide, Computing Bias, Crowdsourcing, Legal and Ethical Concerns, Safe Computing |
How Kalyta teaches AP Computer Science Principles
Practice that adapts to you, an explanation for every answer, and a full rehearsal before the real thing. You spend your time on the units that move your score instead of the ones you have already got.
- Adaptive practice. Questions are picked around your current level, so you are always working just past what you can already do.
- Every answer explained. See why the right answer is right and why each other choice is wrong, with figures and step by step reasoning.
- An AI tutor you can steer. Ask why something works, ask for another example, or tell it to slow down and teach the idea from the start.
- Full exam rehearsals. Sit the real format under real timing and get a predicted score, so test day feels like something you have already done.
- Progress you can see. Watch your readiness climb unit by unit, and know what is solid before you walk in.
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