Can a tree stored in an array using either one of inorder or post order or pre order traversals be again reformed?
A. Yes just traverse through the array and form the tree
B. No we need one more traversal to form a tree
C. No in case of sparse trees
D. Yes by using both inorder and array elements
Answer: Option B
A. O(1)
B. O(log n)
C. O(n)
D. O(n log n)
Which traversal method of a BST will produce a sorted sequence of node values?
A. Inorder
B. Preorder
C. Postorder
D. Level-order
What is the maximum number of children a node in a Binary Search Tree (BST) can have?
A. 1
B. 2
C. 3
D. Any number
How can you determine if a Binary Tree is a Binary Search Tree (BST)?
A. Verify if all nodes in the left subtree are less than the root and all nodes in the right subtree are greater than the root.
B. Check if the tree is balanced.
C. Ensure all nodes have exactly two children.
D. Verify the height of the tree.

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