What are null nodes filled with in a threaded binary tree?
A. inorder predecessor for left node and inorder successor for right node information
B. right node with inorder predecessor and left node with inorder successor information
C. they remain null
D. some other values randomly
Answer: Option A
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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