GATE Computer Science 2021 Set 2 Detailed Solutions (PDF)

About this GATE Computer Science and IT 2021 solved paper

This is the GATE Computer Science and IT 2021 question paper with detailed solutions, kept in our GATE Computer Science and IT library as a free PDF of 75 pages. Every question is worked out step by step, with the core concept or theorem it depends on and, where one exists, a faster route to the answer.

Solving a past paper end to end is still the most reliable way to learn what GATE Computer Science and IT questions look like, how they are weighted and how long each one deserves. Use this solution document after you have attempted the paper yourself, so the gaps it shows are your own.

Paper at a glance

How to use this GATE solved paper

GATE gives you three hours for 65 questions. Clear the 10 General Aptitude questions quickly, take the 1-mark subject questions next, and keep the 2-mark and NAT questions for the time you have saved. Remember that only MCQs carry a penalty.

1. Set a timer for the full paper duration and attempt it before opening the solutions.
2. Mark the questions you guessed or skipped, not only the ones you got wrong.
3. Read the solution and the concept behind each marked question, then redo it without looking.
4. Note the topics that repeat. They are the ones worth revising first.

Frequently asked questions

Is the GATE Computer Science and IT 2021 solution PDF free?

Yes. It is free. You only need a free account to open it.

What is inside the PDF?

Step-by-step solutions to the questions in the paper, across 75 pages, with the core concept used and shorter methods where they exist. The layout is colour-coded so the question, hint and answer are easy to tell apart.