The Graduate Aptitude Test in Engineering (GATE) 2025 for Computer Science Engineering (CSE) has recently ended and the official answer key is expected to be released in February 2025. GeeksforGeeks has released the unofficial answer key for the GATE 2025 Computer Science (CS) exam conducted on February 3, 2025. Candidates can now check the memory-based solutions for both Shift 1 and Shift 2 to estimate their scores before the official answer key is released by IIT Roorkee.
GATE 2025 Exam Review - CS Subject
The Graduate Aptitude Test in Engineering (GATE) 2025 for Computer Science (CS) was conducted by IIT Roorkee on February 1, 2025, in two shifts. The exam was held in online mode, with a total of 65 questions carrying 100 marks, and candidates were given 3 hours to complete it. The GATE score remains valid for 3 years, making it an important exam for postgraduate admissions and public sector jobs.
| Feature | Details |
|---|---|
| Mode of Exam | Online (Computer-Based Test) – Conducted in a secure exam environment with on-screen question display and virtual calculator. |
| Duration | 3 hours (180 minutes) – No additional time allowed for any section; candidates manage time across all sections. |
| Total Questions | 65 questions – Divided across General Aptitude (10 questions) and Core Technical Sections (55 questions). |
| Total Marks | 100 marks – General Aptitude contributes 15 marks, and Technical Sections contribute 85 marks. |
| Sections | 1. General Aptitude (GA) – 10 questions (15 marks) 2. Engineering Mathematics – ~13-15% weightage 3. Core CS Subjects – ~70-72% weightage |
| Question Types | 1. Multiple Choice Questions (MCQs) – 4 options, only one correct; negative marking applies. 2. Multiple Select Questions (MSQs) – More than one correct answer; no negative marking. 3. Numerical Answer Type (NAT) Questions – Answer to be entered as a numerical value; no negative marking. |
| Negative Marking | - MCQs: 1-mark questions: -0.33 penalty per incorrect answer; 2-mark questions: -0.66 penalty. - MSQs & NATs: No negative marking. |
| Virtual Calculator | Available on-screen for numerical calculations. Physical calculators not allowed. |
| Exam Language | English – The entire exam is conducted in English only. |
| Answer Submission | Candidates must submit their answers before the timer expires; the system auto-submits upon time completion. |
GATE 2025 CS Answer Key with PDF – Shift 1
The Shift 1 exam was conducted from 9:30 AM to 12:30 PM and was rated moderate to difficult by most students. Some of the key topics covered were:
- Discrete Mathematics (Graph Theory, Set Theory, Relations)
- Data Structures & Algorithms (Binary Trees, Hashing, Time Complexity)
- Computer Organization (Pipelining, Cache Memory)
- Operating Systems (Process Synchronization, Page Replacement Algorithms)
- Databases (Normalization, Transactions)
A mix of conceptual and numerical questions was present, with a few tricky MSQs (Multiple Select Questions).
Note: We have compiled the memory-based answer key based on student feedback and expert analysis. The unofficial answer key for the GATE 2025 Computer Science (CS) Shift 1 exam is now available!
GATE 2025 CSE Answer Key for Shift 1 Download PDF
Official GATE 2025 CSE Quiz - Set 1
GATE 2025 CS Answer Key with PDF – Shift 2
The Shift 2 exam was conducted from 2:30 PM to 5:30 PM and was rated moderate by most candidates. Some of the important topics included:
- Theory of Computation (Regular Expressions, DFA/NFA)
- Programming & Data Structures (Recursion, Sorting Algorithms)
- Computer Networks (IP Addressing, Congestion Control)
- Artificial Intelligence & ML (Probability, Neural Networks)
- Mathematics (Probability, Linear Algebra)
The paper had more numerical answer-type (NAT) questions, making it slightly calculation-intensive.
Note: This is an unofficial answer key for the GATE 2025 Computer Science (CS) Shift 2 Exam
GATE 2025 CSE Answer Key for Shift 2 Download PDF
Official GATE 2025 CSE Quiz - Set 2
Good Attempt – GATE CS 2025
A good attempt refers to the number of accurate responses that can help candidates secure a high score. Based on the difficulty level of first shift and student feedback, the expected good attempt for GATE CS 2025 is:
| Difficulty Level | Estimated Good Attempts (Accurate Answers) |
|---|---|
| Easy | 55+ |
| Moderate | 50-55 |
| Difficult | 45-50 |
