Class 12 CBSE Computer Science — Important MCQs with Answers
10 chapters · 300 practice questions
Practise Class 12 Computer Science chapter by chapter, all in one place. Every question follows the latest NCERT syllabus and the chapters your school teaches, in the same order. There are 30 timed quizzes made from 300 practice questions across 10 chapters. Easy builds confidence, Medium makes it stick, and Hard stretches you toward competitive-exam level in Class 11 and 12.
To score well in Class 12 Computer Science, focus on logic, syntax and computational thinking. Each chapter on XamBaaz has timed Easy, Medium and Hard quizzes, several of each and never the same set twice. Marking is exam-style: +4 for a right answer, −1 for a wrong one, 0 for a skip. Every question has a one-line explanation, so you learn why an answer is right, not just which option.
Start with any chapter. Popular picks include Python Revision and Functions, Exception Handling in Python, File Handling in Python, right through to Data Communication. Go chapter by chapter and watch your accuracy rise. Every quiz is timed, marked like an exam and explained answer by answer.
Practice is free to try, with no credit card and no app to install. Sign in with Google and your progress, streaks and XP save on every device. Revise Class 12 Computer Science on your phone between classes and pick up where you left off.
Class 12 Computer Science chapters
- 01Python Revision and Functions3 quizzes
- 02Exception Handling in Python3 quizzes
- 03File Handling in Python3 quizzes
- 04CSV Files3 quizzes
- 05Stack3 quizzes
- 10Database Concepts3 quizzes
- 11Structured Query Language (SQL)3 quizzes
- 12Interfacing Python with SQL3 quizzes
- 13Computer Networks3 quizzes
- 14Data Communication3 quizzes
Class 12 Computer Science practice — FAQs
Is the Class 12 Computer Science practice on XamBaaz free?+
Yes. Sign in with Google to start practising Class 12 Computer Science free, with no credit card. A full year of unlimited access is ₹999 on a launch offer until 1 December 2026. No chapter is sold separately.
Are these Class 12 Computer Science questions aligned to NCERT?+
Yes. Every Class 12 Computer Science question follows NCERT and is matched to its exact chapter and topic. It is good practice for CBSE Board exams.
How many Class 12 Computer Science practice questions are there?+
There are 300 questions across 10 chapters of Class 12 Computer Science, making 30 timed quizzes. They are split into Easy, Medium and Hard, each with an instant explanation.
Does XamBaaz have a full Class 12 Computer Science mock test?+
Not yet for Computer Science. Right now, Subject Mastery Tests cover Physics, Chemistry, Maths and Biology. Every Class 12 Computer Science chapter still has its own timed Easy, Medium and Hard quizzes, marked like an exam.
Where can I find important Class 12 Computer Science questions chapter-wise?+
Each chapter above is a set of the most important Class 12 Computer Science questions, split into Easy, Medium and Hard. Open a chapter to read its Key Concepts notes and try some solved sample questions. Then sign in free to start practising, with answers and solutions.
Practise every chapter, free
Every Class 12 Computer Science chapter has its own timed Easy, Medium and Hard quizzes, with answers and explanations.
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Computer Science in other classes
Other Class 12 subjects
Also try board mock papers · CBSE exam guide.
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