CBSE Class 12 Computer Science Question Bank 2026-27
Computer Science is not a subject you can revise by reading. The paper asks you to trace output line by line, find the error in code that looks correct, and write working programs under time pressure. This book is built around those three things.
283 independently authored questions across all seven chapters, Subject Code 083, every one with a complete worked solution. Code is verified against Python 3.11 and 3.13; SQL follows MySQL syntax.
What’s inside:
283 questions across 7 chapters, authored for Future Topper
140 objective questions, each with an explanation of the reasoning rather than just the letter
Output tracing worked step by step: aliasing versus copying, mutable arguments passed to functions, right-associative exponentiation, loop counters that update before the test, the exact point at which finally runs
Error-detection questions that name the error type — syntax, runtime or logical — and show the correction
Complete runnable programs, not fragments: menu-driven stack, Python–MySQL CRUD system, binary file record update, word frequency analyser, dice simulation
35 figures, with a tagged diagram question in each chapter that asks you to read the figure and predict the output
A Key Terms revision sheet closing every chapter
Out-of-syllabus material badged where it appears, including *args, recursion and the enclosing scope
Chapters covered: Functions and Exception Handling (43) · Computer Networks (42) · File Handling and Stack (40) · Database Management (41) · Strings and Lists (39) · Tuples, Dictionaries and Python Modules (39) · Python Fundamentals (39)
How to use it: Write the code by hand before looking at the solution. For output questions, trace each line on paper and commit to an answer before checking — reading the trace afterwards teaches far less than being wrong first. Treat the Key Terms list as the night-before sheet, not the study method.
Closing: For Class 12 students taking Computer Science seriously, including the Class XI Python revision that Unit 1 of the syllabus explicitly requires.
Independent educational practice material. Not affiliated with or endorsed by CBSE. The term CBSE is used only to indicate alignment with the Class 12 Computer Science curriculum, Subject Code 083.
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Reviews
The questions and answers across all 7 chapters are genuinely useful and well structured. The preface error saying two chapters instead of seven is a bit jarring at first. But the actual content is thorough and worth the price.
All chapters are covered well and the question types match CBSE pattern. Some sections feel a bit densely formatted which makes reading on screen slightly tiring. Still very useful for board preparation at this price.
Works well for most of the syllabus. Stack chapter could have more variety in programming questions. Diagrams in networking section are helpful. Good value overall and still recommended for Class 12 CS prep.
try except else finally blocks with different scenarios as questions made the concept very clear. I was always confused about when to use else in exception handling. Not anymore.
Text files, binary files, CSV files, pickle module, seek and tell — all covered with practical questions. This chapter trips students up but the questions here made it very clear.
Find the Output and Error Detection questions are excellent. A few of the Long Answer model answers could benefit from slightly more elaboration. But considering Rs 49 for 281 questions this is still a strong purchase.
Python chapters are very thorough. The networking chapter has decent coverage but I felt it could have a few more questions given how much the topic covers. Otherwise a comprehensive and useful question bank.
All 7 chapters covered with complete answers and explanations. The section wise split into MCQs, short answers, and programming questions matches the CBSE pattern exactly. Very impressed at this price.
All argument types in functions — positional, default, keyword, args, kwargs — covered with questions. Scope of variables, global keyword, return values. Nothing missed in Chapter 1.
Every programming question has a full solution with code. The explanations are helpful. A few of the longer programs could use slightly more commenting but solutions are correct.