40 Best Data Structure Interview Questions and Answers

List of top 40 most frequently asked data structures interview questions and answers pdf download free

Data Structure Interview Questions and Answers List

  1. Define Data Structures
  2. Define primary data structures
  3. Define static data structures
  4. List some of the static data structures in C
  5. Define dynamic data structures
  6. List some of the dynamic data structures in C
  7. Define linear data structures
  8. Define non-linear data structures
  9. Why we need cursor implementation of linked lists?
  10. State the different types of linked lists
  11. List the basic operations carried out in a linked list
  12. List out the advantages of using a linked list
  13. List out the disadvantages of using a linked list
  14. List out the applications of a linked list
  15. Define a stack
  16. List out the basic operations that can be performed on a stack
  17. State the different ways of representing expressions
  18. State the advantages of using infix notations
  19. State the advantages of using postfix notations
  20. State the rules to be followed during infix to postfix conversions
  21. State the rules to be followed during infix to prefix conversions
  22. State the difference between stacks and linked lists
  23. Mention the advantages of representing stacks using linked lists than arrays
  24. Define a queue
  25. Define a priority queue
  26. State the difference between queues and linked lists
  27. Define a Deque
  28. Why you need a data structure?
  29. What are the objectives of studying data structures?
  30. What is a Stack? Explain with example?
  31. Write the algorithm for converting infix expression to postfix expression?
  32. What is a Queue? Explain its operation with example?
  33. Explain the applications of stack?
  34. Write an algorithm for inserting and deleting an element from doubly linked list?
  35. Explain linear linked implementation of Stack and Queue?
  36. What are the different binary tree traversal techniques?
  37. What are the tasks performed while traversing a binary tree?
  38. What are the tasks performed during preorder traversal?
  39. What are the tasks performed during inorder traversal?
  40. What are the tasks performed during postorder traversal?

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