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DSA Interview Mock Test Series

5 timed mock tests that feel like real placement and interview rounds — with full explanations.

Practise the way you'll be tested. Each mock is timed, mixes concept questions with "what does this code print?" and complexity analysis, and explains every answer so you learn from each mistake.

The 5 mocks

  1. Arrays, Strings & Hashing — free sample, try it now
  2. Two Pointers, Sliding Window & Binary Search
  3. Linked Lists, Stacks, Queues & Recursion
  4. Trees, Heaps & Graphs
  5. Dynamic Programming, Greedy & Final Mixed Round

Why take it

  • Spot your weak topics before the real interview does
  • Build speed under a timer
  • Every question has a clear explanation — and a free Skills101 tutorial for the topic
  • Earn XP and climb the leaderboard

One-time payment, lifetime access, retake any mock as often as you like.

Tests in this series

  1. 1

    Mock 1 — Arrays, Strings & Hashing Free sample

    10 questions · 15 min

    Start
  2. 2

    Mock 2 — Two Pointers, Sliding Window & Binary Search

    10 questions · 15 min

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  3. 3

    Mock 3 — Linked Lists, Stacks, Queues & Recursion

    10 questions · 15 min

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  4. 4

    Mock 4 — Trees, Heaps & Graphs

    10 questions · 15 min

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  5. 5

    Mock 5 — Dynamic Programming, Greedy & Final Mixed Round

    12 questions · 20 min

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