What is the difference between Postorder and Inorder Traversal?
There is no significant difference; both traversals produce the same output.
Postorder visits the root node before its children, while Inorder visits the root between its left and right children.
Postorder is used for deleting nodes in a Binary Tree, while Inorder is used for printing the nodes in sorted order.
Postorder visits the left subtree, then the right subtree, and finally the root, while Inorder visits the left subtree, the root, and then the right subtree.
Inorder Traversal is particularly useful for which of the following applications?
Checking if a Binary Tree is balanced.
Finding the height of a Binary Tree.
Printing the nodes of a BST in sorted order.
Finding the diameter of a Binary Tree.
When deleting a node with two children in a BST, which node is typically chosen as its replacement?
The node's immediate parent
The rightmost child of the node's left subtree
The leftmost child of the node's right subtree
Any leaf node in the subtree rooted at the node being deleted
Which traversal algorithm is most suitable for finding the Lowest Common Ancestor (LCA) of two nodes in a Binary Tree?
Any of the above
Level Order Traversal
Preorder Traversal
Postorder Traversal
Which of the following statements is true about AVL trees?
AVL trees are always perfectly balanced.
AVL trees are a type of Red-Black tree.
AVL trees do not require any rotations to maintain balance.
AVL trees guarantee a maximum height difference of 1 between the left and right subtrees of any node.
How can you identify leaf nodes during a preorder traversal of a binary tree?
A node is a leaf if its value is less than its parent's value.
A node is a leaf if both its left and right child pointers are NULL.
It is not possible to identify leaf nodes during preorder traversal.
A node is a leaf if it is visited before its children.
What is the time complexity of finding the LCA in a Binary Search Tree (BST) in the worst case?
O(1)
O(n log n)
O(log n)
O(n)
What is the time complexity of finding all root-to-leaf paths in a Binary Tree?
O(n^2)
Which type of binary tree traversal is typically used to delete all nodes in a BST?
Inorder traversal
Preorder traversal
Postorder traversal
Level-order traversal
Which data structure is most suitable for implementing Level Order Traversal efficiently?
Linked List
Queue
Stack
Binary Heap