Operations: traversal, insertion, deletion MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 14, 2025

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1. : What is traversal in the context of data structures?





2. : Which traversal technique visits the left subtree, then the root, and finally the right subtree in a binary tree?





3. : Which traversal method is used in depth-first search (DFS) of a graph?





4. : In a linked list, which operation requires traversal to reach the desired position?





5. : What is the time complexity of traversing an array of size n?





6. : What is the time complexity of inserting an element at the beginning of a singly linked list?





7. : In an array, what is the time complexity of inserting an element at the end?





8. : What is the time complexity of inserting an element at a specific position in an array of size n?





9. : In a binary search tree (BST), what is the average time complexity of inserting an element?





10. : In a heap, what is the time complexity of inserting an element?





11. : What is the time complexity of deleting the first element of a singly linked list?





12. : In an array, what is the time complexity of deleting an element from a specific position?





13. : What is the time complexity of deleting an element from the end of an array of size n?





14. : In a binary search tree (BST), what is the average time complexity of deleting an element?





15. : What is the time complexity of deleting the root element in a max heap?





16. : Which data structure allows insertion, deletion, and traversal in O(1) time complexity?





17. : Which of the following data structures supports O(1) time complexity for both insertion and deletion at the beginning?





18. : Which traversal method is typically used to display elements of a binary search tree in ascending order?





19. : In which data structure does insertion and deletion take O(1) time but traversal takes O(n) time?





20. : What is the time complexity of inserting an element in the middle of a linked list?





   

Data Structures MCQs

Basic Concepts
  1. Introduction to Data Structures
  2. Complexity Analysis MCQs
Linear Data Structures MCQs
  1. Arrays MCQs
  2. Linked Lists MCQs
  3. Stacks MCQs
  4. Queues MCQs
Non-Linear Data Structures MCQs
  1. Trees MCQs
  2. Heaps MCQs
  3. Graphs MCQs
Hashing MCQs MCQs
  1. Hash Tables
Sorting and Searching Algorithms MCQs 
  1. Sorting Algorithms MCQs
  2. Searching Algorithms MCQs
Miscellaneous
  1. Memory Management in data structures MCQs
  2. String Manipulation Algorithms MCQs
  1. Data Structures MCQs 1
  2. Data Structures MCQs 2
  3. Data Structures MCQs 3
  4. Data Structures MCQs 4
  5. Data Structures MCQs 5
  6. Stacks Solved MCQs
  7. Queues MCQs
  8. pointer mcqs
  9. Array MCQs
 

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