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Data Structures (BCS301) AKTU PYQ analysis – unit-wise weightage

We analysed 166 questions from 7 AKTU Data Structures papers (2020–2026). Here is how marks are spread across units and which topics keep coming back.

Data Structures unit-wise weightage

  • Unit 1: Introduction, Arrays & Linked Lists – 30% of questions, about 30 marks per paper
  • Unit 2: Stacks, Recursion & Queues – 30% of questions, about 30 marks per paper
  • Unit 3: Searching, Hashing & Sorting – 30% of questions, about 30 marks per paper
  • Unit 4: Trees – 31% of questions, about 31 marks per paper
  • Unit 5: Graphs – 28% of questions, about 28 marks per paper

Most repeated Data Structures topics in AKTU PYQs

  • Stacks
  • Linked Lists
  • Sorting
  • Graphs
  • Arrays

Unit 1 (Introduction, Arrays & Linked Lists) – top topics

  • Linked Lists – asked 16 times, last in 2026
  • Arrays – asked 11 times, last in 2026
  • Introduction & Complexity Analysis – asked 9 times, last in 2026

Unit 2 (Stacks, Recursion & Queues) – top topics

  • Stacks – asked 20 times, last in 2026
  • Recursion – asked 9 times, last in 2026
  • Queues – asked 8 times, last in 2025

Unit 3 (Searching, Hashing & Sorting) – top topics

  • Sorting – asked 14 times, last in 2026
  • Hashing – asked 9 times, last in 2026
  • Searching – asked 6 times, last in 2025

Unit 4 (Trees) – top topics

  • Trees & Binary Trees – asked 10 times, last in 2026
  • AVL, B-Trees & Binary Heaps – asked 10 times, last in 2026
  • Binary Search Tree (BST) – asked 8 times, last in 2026

Unit 5 (Graphs) – top topics

  • Graphs – asked 12 times, last in 2025
  • Shortest Path & Transitive Closure – asked 9 times, last in 2026
  • Minimum Spanning Tree – asked 8 times, last in 2026