AVL Trees MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 15, 2025

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1. : What is an AVL tree?



2. : In an AVL tree, what is the maximum allowed height difference (balance factor) between the left and right subtrees of any node?



3. : What is the worst-case time complexity for searching an element in an AVL tree with n nodes?



4. : Which operation in an AVL tree may require tree rotations to maintain balance?



5. : In an AVL tree, which rotation is used to restore balance when the tree becomes right-heavy?



6. : Which of the following properties is NOT necessarily true for AVL trees?



7. : What is the time complexity of inserting an element into an AVL tree?



8. : Which traversal of an AVL tree visits nodes in non-decreasing order of their values?



9. : In an AVL tree, which operation is used to find the successor of a given node?



10. : Which rotation operation is used in AVL trees to restore balance after a double rotation is performed?



11. : What is the worst-case time complexity for deleting an element from an AVL tree?



12. : In an AVL tree, what is the minimum number of nodes at level k?



13. : Which traversal of an AVL tree starts from the root, visits the left subtree, and then visits the right subtree?



14. : In an AVL tree, what is the maximum number of edges in a path from the root to a leaf node?



15. : Which rotation operation is used in AVL trees to restore balance after a double left rotation is performed?



16. : Which traversal of an AVL tree visits nodes in descending order of their values?



17. : In an AVL tree, what is the maximum number of nodes at height h?



18. : Which traversal of an AVL tree visits nodes level by level?



19. : Which of the following statements is true about AVL trees?



 

 

Data Structures MCQs

Basic Concepts

  1. Introduction to Data Structures
  2. Complexity Analysis MCQs

Linear Data Structures MCQs

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  2. Linked Lists MCQs
  3. Stacks MCQs
  4. Queues MCQs

Non-Linear Data Structures MCQs

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  2. Heaps MCQs
  3. Graphs MCQs

Hashing MCQs MCQs

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Sorting and Searching Algorithms MCQs 

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  5. Data Structures MCQs 5
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  7. Queues MCQs
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  9. Array MCQs

 

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