PrepologyPostgraduate engineering
GATE CS preparation with Prepology
Prepology is an adaptive exam-preparation app for GATE CS (Graduate Aptitude Test in Engineering, Computer Science and Information Technology paper). For GATE CS it has 1,000+ original practice questions across General Aptitude, Engineering Mathematics, Digital Logic, Computer Organization and Architecture, Programming and Data Structures, Algorithms, Theory of Computation, Compiler Design, Operating System, Databases and Computer Networks (53 topics), timed mock tests on the exam pattern (65 questions, 100 marks, 180 minutes), a personalised daily study plan, spaced revision and an AI mentor that explains questions. It runs in the browser and on Android, is free to start, and Plus costs ₹49 a month or ₹499 a year. It is for learners aged 18 and over.
GATE CS is one of the GATE papers, conducted jointly by IISc Bengaluru and seven IITs and used for M.Tech and PhD admissions and some public-sector recruitment.
- 1,000+original practice questions
- 11subjects
- 53topics covered
- ₹0to start · Plus ₹49/month
What Prepology offers for GATE CS
- Chapter-wise practice: 1,000+ original GATE CS-style questions across 53 topics, pitched at your level, with an explanation after every answer.
- Timed mock tests (Plus): full papers on the GATE CS pattern below, with the exam’s marking and negative marking.
- A personalised daily study plan: built around your classes and study hours, weighted by how much each topic counts in the exam, and rebuilt when you fall behind.
- Spaced revision: topics and missed questions come back for review before you forget them.
- AI Mentor: explains questions and answers doubts about your plan and topics.
- Test history and retakes: review every mock test you have taken and retake it.
- Syllabus coverage: see which GATE CS topics you have practised and which are not assessed yet.
GATE CS exam pattern
The GATE CS paper has 65 questions for 100 marks in 180 minutes: 10 General Aptitude questions (15 marks) and 55 questions (85 marks) from Engineering Mathematics and Computer Science. Questions carry 1 or 2 marks and are multiple choice (MCQ), multiple select (MSQ) or numerical answer (NAT). Only a wrong MCQ loses marks: one third of its marks.
| Section | Questions | Marks if right | Marks if wrong |
|---|---|---|---|
| General Aptitude | 10 | 1 or 2 | −⅓ of marks (MCQ only) |
| Engineering Mathematics | 8 | 1 or 2 | −⅓ of marks (MCQ only) |
| Digital Logic | 4 | 1 or 2 | −⅓ of marks (MCQ only) |
| Computer Organization and Architecture | 6 | 1 or 2 | −⅓ of marks (MCQ only) |
| Programming and Data Structures | 7 | 1 or 2 | −⅓ of marks (MCQ only) |
| Algorithms | 6 | 1 or 2 | −⅓ of marks (MCQ only) |
| Theory of Computation | 5 | 1 or 2 | −⅓ of marks (MCQ only) |
| Compiler Design | 3 | 1 or 2 | −⅓ of marks (MCQ only) |
| Operating System | 6 | 1 or 2 | −⅓ of marks (MCQ only) |
| Databases | 5 | 1 or 2 | −⅓ of marks (MCQ only) |
| Computer Networks | 5 | 1 or 2 | −⅓ of marks (MCQ only) |
| Total | 65 | 100 marks | |
The split of the 55 technical questions across sections below is Prepology’s estimate from analyses of the past five GATE CS papers, not an official breakdown. Source: GATE question paper pattern (organising institute). Exam patterns can change; always check the official notification.
GATE CS subjects and topics covered
Topics follow the official GATE CS syllabus. Each topic has its own practice questions, revision and progress.
General Aptitude 4 topics · 50+ questions
- Verbal Aptitude
- Quantitative Aptitude
- Analytical Aptitude
- Spatial Aptitude
Engineering Mathematics 4 topics · 50+ questions
- Discrete Mathematics
- Linear Algebra
- Calculus
- Probability and Statistics
Digital Logic 4 topics · 50+ questions
- Boolean Algebra and Minimisation
- Combinational Circuits
- Sequential Circuits
- Number Representation
Computer Organization and Architecture 5 topics · 100+ questions
- Instruction Set and Addressing Modes
- ALU and Control Unit
- Memory Hierarchy and Cache
- I/O, Interrupts and DMA
- Pipelining
Programming and Data Structures 5 topics · 100+ questions
- C Programming
- Recursion
- Arrays, Stacks, Queues and Linked Lists
- Trees, BSTs and Heaps
- Graphs
Algorithms 5 topics · 100+ questions
- Asymptotic Analysis
- Searching, Sorting and Hashing
- Divide and Conquer
- Greedy and Dynamic Programming
- Graph Algorithms
Theory of Computation 4 topics · 50+ questions
- Regular Expressions and Finite Automata
- Context-free Grammars and PDA
- Closure Properties and Pumping Lemma
- Turing Machines and Decidability
Compiler Design 5 topics · 100+ questions
- Lexical Analysis
- Parsing
- Syntax-directed Translation
- Runtime Environments
- Intermediate Code and Optimisation
Operating System 6 topics · 100+ questions
- Processes, Threads and IPC
- Synchronisation and Deadlock
- CPU Scheduling
- Memory Management and Virtual Memory
- File Systems
- Disk Scheduling
Databases 5 topics · 100+ questions
- ER and Relational Model
- Relational Algebra and SQL
- Normalisation
- Indexing and B+ Trees
- Transactions and Concurrency
Computer Networks 6 topics · 100+ questions
- Layering, Switching and Performance
- Data Link Layer and MAC
- Routing and IPv4
- TCP and Congestion Control
- DNS and HTTP
- ARP, DHCP and ICMP
GATE CS preparation: questions and answers
Is Prepology free for GATE CS preparation?
Yes, you can start free. The Free plan includes 20 practice questions a day, the daily study plan, revision, notes, flashcards and 20 AI Mentor messages a day. Plus (₹49 a month or ₹499 a year) raises practice to 200 questions a day, adds timed GATE CS mock tests and allows 150 Mentor messages a day.
Are the questions taken from past GATE CS papers?
No. They are original questions written for Prepology to the GATE CS syllabus and pattern, each with a worked explanation. Questions are checked by a reviewer, and you can report a mistake from the app.
Do the mock tests follow the real GATE CS pattern?
They follow the pattern on this page (65 questions, 100 marks, 180 minutes). Exam bodies can change the pattern, so check the official notification before your exam.
Is Prepology affiliated with IISc, any IIT or the GATE organising institute?
No. Prepology is an independent study aid. It is not affiliated with or endorsed by IISc, any IIT or the GATE organising institute or any other exam-conducting body.
Who can use Prepology?
Anyone aged 18 or over. Use it in a browser or install the Android app; both sync to the same account.
Start preparing for GATE CS
Set up in about three minutes: pick GATE CS, add your study hours, and get your first study plan. No payment needed to start.