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Theory of Computation - GATE CSE Previous Year Questions

Last Updated : 15 Apr, 2025
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The Theory of Computation(TOC) subject has high importance in GATE CSE exam because:

  • large number of questions nearly 6-8% of the total paper
  • significant weightage (6-8 marks) across multiple years

Below is the table for previous four year mark distribution of TOC in GATE CS:

Year

Approx. Marks from TOC

Number of Questions

Difficulty Level

GATE 2024

7–8 marks

3-4

Moderate-Hard

GATE 2023

6.5 marks

3

Moderate

GATE 2022

7 marks

3-4

Hard

GATE 2021

8 marks

4

Moderate

Topic-Wise Quizzes to Practice Previous Year's Questions

Although Theory of Computation is considered to be one of the challenging subjects of GATE CSE exam because of its logical depth, the questions often are structured and follows patterns. With regular practice of PYQs and high-weightage topics such as Finite Automata, Regular Expressions, Turing Machines etc., you can increase your accuracy and score. The links to quiz of these topics are given below:

We have selected questions of Theory of Computation from GATE previous year questions and compiled for you. Below mentioned are the links to such sets of questions. On each page, you will get the questions asked in TOC along with their respective years.

GATE TOC Previous Year Questions
Automata Theory | Set 1, 2
Automata Theory | Set 3
Automata Theory | Set 4
Automata Theory | Set 5
Automata Theory | Set 6

GATE CSE Previous Year Question Papers

These previous year’s questions help you understand the question patterns followed by GATE that directly help a candidate in scoring good marks in GATE. Given below is the link to year-wise GATE Previous Question Papers:

GATE CSE Previous Year Question Papers

These GATE CSE question papers span over 25+ years, along with their official answer keys. We’ve also provided Quiz tests to help you practice key topics, improve speed, track your progress, and build confidence for the GATE exam 2026.


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