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Binary Search TreesB Tree MCQs

Practice Binary Search TreesB Tree MCQs for competitive exams.

Binary Search TreesB Tree MCQs

Practice questions from this topic.

How do you find the successor of a node in a Binary Search Tree (BST)?

  1. A. The smallest node in the right subtree.
  2. B. The largest node in the left subtree.
  3. C. The largest node in the right subtree.
  4. D. The smallest node in the left subtree.
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What is the time complexity of deleting the root node in a Binary Search Tree (BST) with two children?

  1. A. O(1)
  2. B. O(log n)
  3. C. O(n)
  4. D. O(n log n)
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In a Binary Search Tree (BST), what is the term for the node with the highest value?

  1. A. Root
  2. B. Maximum node
  3. C. Minimum node
  4. D. Leaf
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Which traversal method of a BST is used for evaluating arithmetic expressions stored in the tree?

  1. A. Postorder
  2. B. Inorder
  3. C. Preorder
  4. D. Level-order
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What is the key difference between a Binary Search Tree (BST) and a Binary Heap?

  1. A. A BST maintains sorted order of elements, while a Binary Heap maintains a heap property.
  2. B. A Binary Heap maintains sorted order, while a BST does not.
  3. C. A BST is always balanced, while a Binary Heap is not.
  4. D. A Binary Heap allows duplicate elements, while a BST does not.
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How do you handle duplicate values in a Binary Search Tree (BST)?

  1. A. Usually, duplicates are not allowed.
  2. B. Duplicate values are stored in the right subtree.
  3. C. Duplicate values are stored in the left subtree.
  4. D. Duplicates are stored in a separate data structure.
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What is the primary advantage of using a Binary Search Tree (BST) over an array for searching?

  1. A. Faster search operations due to sorted order.
  2. B. Simpler implementation.
  3. C. Requires less memory.
  4. D. Easier to maintain order.
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What is the time complexity of inserting a node into a Binary Search Tree (BST) in the worst case?

  1. A. O(1)
  2. B. O(log n)
  3. C. O(n)
  4. D. O(n log n)
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In a BST, which traversal method visits nodes in the order of their depth?

  1. A. Level-order
  2. B. Inorder
  3. C. Preorder
  4. D. Postorder
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What is the main advantage of using a Binary Search Tree (BST) over an unsorted list?

  1. A. It allows for faster search, insertion, and deletion operations.
  2. B. It uses less memory.
  3. C. It is easier to implement.
  4. D. It maintains elements in sorted order.
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How can you balance a Binary Search Tree to ensure O(log n) time complexity for operations?

  1. A. By using self-balancing trees like AVL Trees or Red-Black Trees.
  2. B. By reordering elements after each operation.
  3. C. By increasing the size of the tree.
  4. D. By ensuring all nodes have two children.
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Which of the following is NOT a valid operation on a Binary Search Tree?

  1. A. Sorting elements
  2. B. Searching for an element
  3. C. Inserting a new element
  4. D. Deleting an existing element
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