Algorithms, data, internet, cybersecurity, big ideas.
Session settings
Locked once you start.Feedback
Text size
You can still adjust zoom mid-test with A− / A+.
Real Test
Full-length test
70 questions, 120 min countdown. Same length and pacing as the real exam.
Best on desktop - a computer is recommended for full-length tests.
Warmup
Quick practice
Random questions across all topics. Pick a difficulty to dial up the challenge.
Targeted
Practice by topic
Drill one skill until it stops scaring you.
Smart Mix
AI smart quiz
Pulls real questions from the AP CS Principles bank by topic + difficulty, and tops up with fresh AI when the bank runs short.
AI · Fresh
Endless AI questions
Brand-new questions written by AI every time — no repeats. Great when you've drilled the bank dry.
Stuck? Ask the AI tutor.
Adaptive help that explains your mistakes step-by-step.
Practice AP CS Principles free response
2 rubric-graded prompts. AI scores against the official rubric.
Exam blueprint
70 MCQ end-of-course exam (70%) + Create Performance Task (30%).
Big Idea 1Creative Development10–13%
Big Idea 2Data17–22%
Big Idea 3Algorithms and Programming30–35%
Big Idea 4Computer Systems and Networks11–15%
Big Idea 5Impact of Computing21–26%
Source: College Board Course & Exam Descriptions, 2025–26.