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GATE CS / IT Exam Portal

Master high-yield GATE Computer Science & Information Technology topics with Previous Year Questions, Daily Practice, Question Khazana (30-Year PYQs), and Virtual Calculator Mock Tests.

Module 01 ā€¢ Recommended
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GATE CSE Previous Year Questions

Official 2026 ā€“ 2016 Solved PYQs. Practice 4 ways: Topic-wise chapter accordions, Subject-wise question banks, Year-wise full papers, or the Interactive Solver.

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Module 02 ā€¢ Daily Speed
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Daily Quiz

Solve daily 3 high-yield numericals, maintain your 7-day flame streak & calendar with virtual calculator integration!

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Module 03 ā€¢ Simulation
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Mock Test Simulator

Full 3-Hour timed GATE exam simulation with Virtual Calculator integration & Instant Marks Analysis.

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Module 04 ā€¢ High Yield
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PYQ Analyser & Trends

Dynamic subject-wise marks weightage, most repeated topics, question type charts, and score trends.

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šŸŽÆ Today's GATE CS Practice Target

Q1. What is the time complexity of building a Binary Heap of N elements? GATE CS 2023
šŸ’” Solution (Option B): Building a heap bottom-up takes O(N) linear time using Floyd's Build-Heap algorithm because the work done at each height h is N/2^(h+1) * O(h), summing to O(N).
Q2. In paging, what is the size of the Physical Address Space if page size is 4KB and Frame Number is 14 bits? GATE CS 2022
šŸ’” Solution (Option B): Page size = 4 KB = 2^12 Bytes (offset = 12 bits). Frame Number = 14 bits. Physical Address = Frame Number (14) + Offset (12) = 26 bits. PAS = 2^26 = 64 MB.

šŸ“š GATE 30-Year PYQ Khazana & Topper Registers

Algorithms & Data Structures Register

Handwritten formulas, recurrence tree tricks, graph theory short-notes and asymptotic proofs.

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Operating Systems & Networks Register

Semaphore patterns, deadlock banker's algorithm formulas, subnetting & sliding window summaries.

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DBMS & Theory of Computation Register

Normal forms flowcharts, serializability precedence graphs, Chomsky hierarchy & closure properties.

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