Solve GATE CSE MCQ, MSQ and NAT questions from this page to practice ahead of the examination. Attempting these MCQ questions for GATE CSE 2025 exam regularly will prepare you for the most expected questions and help you score 65-70 marks in the subject paper.
GATE CSE MCQ, MSQ and NAT Questions:
Computer Science and Information Technology (CS) is one of the most opted and difficult papers to pass in the GATE examination. Therefore, preparing the syllabus thoroughly is not enough to crack the exam; you must dedicate much of your time to practice several MCQ, MSQ, and NAT questions to score the GATE 2025 cutoff for CS. GATE CSE 2025 question paper will have Engineering Mathematics, General Aptitude, and core CS sections. There will be 10 General Aptitude questions of 15 marks, 10 Engineering Mathematics questions of 13 marks, and 45 Computer Science and Information Technology questions of 72 marks. The
GATE 2025 exam
will have a total of 65 questions carrying 100 marks. To get 85+ marks in this paper, you must solve GATE CSE MCQ questions from key chapters, like Theory of Computation, Digital Logic, Algorithms and Operating Systems, etc. Besides, since a portion of the paper will have numerical based questions, you must practice GATE CSE NAT questions to analyze your overall preparation and work on your mistakes. The GATE 2025 Computer Science Engineering exam will be held on February 1, 2025. In this article, we have listed the most expected and important GATE MCQ, MS,Q and NAT questions for Computer Science & Information Technology based on the past years' paper trends.
Also Read:
GATE 2025 Computer Science & Information Technology: Exam Date (Feb 1), Syllabus, Question Papers, Pattern, Cutoff
Quick Links:
| GATE 2025 Admit Card | GATE 2025 Exam Dates |
|---|---|
| Best Books for GATE 2025 Exam Preparation | GATE 2025 Exam Preparation Tips |
Most Important GATE CSE MCQ, MSQ and NAT Questions
GATE CS exam will have NAT, MSQ, and MCQ-type questions as per the GATE 2025 exam pattern . You must gain expertise in solving numerical questions and at the same time have a proper understanding of theoretical concepts to attempt MCQ and MSQ. Solve these important questions of GATE CSE MCQ questions to improve your exam preparation. We have taken these important questions from the GATE previous year question papers with solutions and answer keys PDF .
Theory of Computation
Q1- Which of the following statements is/are CORRECT?
A- The intersection of two regular languages is regular.
B- The intersection of two context-free languages is context-free.
C- The intersection of two recursive languages is recursive.
D- The intersection of two recursively enumerable languages is recursively enumerable.
Answer- Options A, C, and D are correct
Q2- Context-free languages and regular languages are both closed under the operation(s) of :
A- Union
B- Intersection
C- Concatenation
D- Complementation
Answer- Options A and C are correct
Operating Systems
Q3- Consider a process P running on a CPU. Which one or more of the following events will always trigger a context switch by the OS that results in process P moving to a non-running state (e.g., ready, blocked)?
A- P makes a blocking system call to read a block of data from the disk
B- P tries to access a page that is in the swap space, triggering a page fault
C- An interrupt is raised by the disk to deliver data requested by some other process
D- A timer interrupt is raised by the hardware
Answer- A and B are correct
Q4- Consider the following five disk access requests of the form (request id, cylinder number) that are present in the disk scheduler queue at a given time.
(P, 155), (Q, 85), (R, 110), (S, 30), (T, 115)
Assume the head is positioned at cylinder 100. The scheduler follows Shortest Seek Time First scheduling to service the requests.
Which one of the following statements is FALSE?
A- The head reverses its direction of movement between servicing of Q and P.
B- T is serviced before P.
C- R is serviced before P.
D- Q is serviced after S, but before T.
Answer- Option D is correct
Algorithms
Q5- Which of the following statements are TRUE?
1. The problem of determining whether there exists a cycle in an undirected graph is in P.
2. The problem of determining whether there exists a cycle in an undirected graph is in NP.
3. If problem A is NP−Complete, there exists a non-deterministic polynomial time algorithm to solve A.
A- 1 , 2 and 3
B- 1 and 2 only
C- 2 and 3 only
D- 1 and 3 only
Answer-
Option A is correct
Quick Links:
| GATE 2025 Exam Centers | GATE sample papers with solutions and answer keys PDF |
|---|---|
| GATE 2025 Mock Test Free | Best GATE Coaching Institutes in India 2025 |
Q6- The Floyd-Warshall algorithm for all-pair shortest paths computation is based on
A- Greedy paradigm
B- Divide-and-Conquer paradigm
C- Dynamic Programming paradigm
D- neither Greedy nor Divide-and-Conquer nor Dynamic Programming paradigm
Answer- Option D is correct
Digital Logic
Q7- Consider a 4-bit Johnson counter with an initial value of 0000. The counting sequence of this counter is:
A- 0, 1, 3, 7, 15, 14, 12, 8, 0
B- 0, 1, 3, 5, 7, 9, 11, 13, 15, 0
C- 0, 2, 4, 6, 8, 10, 12, 14, 0
D- 0, 8, 12, 14, 15, 7, 3, 1, 0
Answer- Option D is correct
Q8- In 16-bit 2's complement representation, the decimal number -28 is:
A- 1000 0000 1110 0100
B- 0000 0000 1110 0100
C- 1111 1111 1110 0100
D- 1111 1111 0001 1100
Answer- Option C is correct
Database Management Systems
Q9- Consider the following two statements about database transaction schedules:
I. Strict two-phase locking protocol generates conflict serializable schedules that are also recoverable.
II. Timestamp-ordering concurrency control protocol with Thomas Write Rule can generate view serializable schedules that are not conflict serializable.
Which of the above statements is/are TRUE?
A- Both I and II
B- I only
C- II only
D- Neither I nor II
Answer-
Option A is correct
Q10- Which of the following file organizations is/are I/O efficient for the scan operation in DBMS?
A- Sorted
B- Heap
C- Unclustered tree index
D- Unclustered hash index
Answer-
Options A and B are correct
Quick Links:
GATE 2023 Question Paper PDF with Solutions and Answer Key PDF | GATE 2022 Question Paper PDF with Solutions and Answer Key PDF |
|---|---|
GATE 2021 Question Paper PDF with Solutions and Answer Key PDF | |
GATE CSE MCQ, MSQ, and NAT Questions Marking Scheme
The marks in the GATE CSE MCQ, MSQ, and NAT questions will be awarded as per the marking scheme. Stated by the authority. Being an aspiring GATE exam taker, you are expected to have complete knowledge about the GATE marking scheme. You can find the detailed GATE CSE MCQ, MSQ, and NAT questions marking scheme below:-
Types of Questions | Marking Scheme |
|---|---|
MCQ |
|
NAT | No negative marking |
MSQ | No negative marking |
You can score good marks in Computer Science and Information Technology if you study the complete GATE 2025 syllabus PDF without skipping out any chapters or topics. Solving GATE previous year questions papers, GATE 2025 mock tests, sample papers, test series, and important questions is very essential for you. Previous year GATE exam toppers give a lot of emphasis on solving questions to gain a better understanding of concepts and judge your preparation. After finishing the syllabus focus on revision and solving previous year papers and mock tests.
We wish you all the best for your exam.
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FAQs
To answer the NAT questions, you need to solve those in those step by step, and need to make sure that all the steps are correctly elaborated. The answer of the NAT questions are typically in the numerical or decimal form.
Shortened for Multiple Select Questions and Numerical Answer Type questions for MSQ and NAT respectively, these mean that in MSQ, there will be multiple correct answers and you need to tick all of them in order to get marks. However, the NAT questions are mathematical problems that have an answer in the form of either numerical or decimal.
The GATE exam of CSE will hold a total of 25 MCQ/NAT questions each, and a total of 30 MSQ/ NAT questions each from subject-specific topics, and 10 MCQ/ MSQ/NAT questions from the General Aptitude section.
The GATE Computer Science & Information Technology exam will have MSQ, MCQ, and NAT questions. You will be provided answers on the screen, from which you will have to choose the correct answer.
By solving the GATE CS model questions you will be able to analyze your exam preparation. You will get an idea about what topics you need to restudy and what formulae you are forgetting. Practicing with GATE CS questions will help you improve your overall preparation.
To prepare for the GATE CS 2025 exam begin your preparation early, make a preparation plan, study the complete CS syllabus without skipping any topic, do timely revision, clear your doubts, and solve various previous year papers, mock tests, and sample papers.
The GATE CS 2025 exam will have 3 sections namely Engineering Mathematics, General Aptitude, and Core Computer Science & Information Technology subjects.
The GATE 2025 Computer Science & Information Technology exam will be held on February 2, 2025, in two shifts.
GATE Previous Year Question Paper
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