Tree Traversal Algorithms Quiz

Which of the following is a use of the Pre-Order tree-traversal algorithm?

• Outputting the contents of a binary search tree in ascending order.

• Copying a tree.

• Converting infix expressions to RPN (Reverse Polish Notation).

• Producing a postfix expression from an expression tree.

What is the use of In-Order tree-traversal algorithm?

• Copying a tree.

• Producing a postfix expression from an expression tree.

• Converting infix expressions to RPN (Reverse Polish Notation).

• Outputting the contents of a binary search tree in ascending order.

For which purpose is the Post-Order tree-traversal algorithm used?

• Copying a tree.

• Outputting the contents of a binary search tree in ascending order.

• Producing a postfix expression from an expression tree.

• Emptying a tree.

What is tree-traversal?

• The process of removing nodes from a tree

• The process of visiting/updating/outputting each node in a tree

• The process of connecting all nodes in a tree

• The process of coloring each node in a tree

How is tree-traversal different from graph-traversal?

• Tree-traversal can only be performed on binary trees

• Tree-traversal is not unique to trees and can start at any node

• Tree-traversal is unique to trees and must start at the root

• Tree-traversal does not involve visiting nodes

Which of the following types of tree-traversal is only well defined for binary trees?

• Pre-order

• Post-order

• In-order

• Breadth-first

Which types of tree-traversal are mentioned in the document?

• Pre-order, In-order, and Breadth-first

• In-order, Post-order, and Depth-first

• Pre-order, In-order, and Post-order

• Pre-order, Depth-first, and Breadth-first

What is the purpose of pre-order traversal in tree data structures?

• To delete a tree

• To copy a tree

• To balance a tree

• To encrypt a tree

Can pre-order traversal be performed on any tree?

• Yes, it can be performed on any tree

• No, it can only be performed on binary trees

• No, it can only be performed on balanced trees

• No, it can only be performed on rooted trees

What type of tree is used in the example to explain pre-order traversal?

• A binary tree

• A balanced tree

• A tree with more than two children per node

• A rooted tree with at most two children per node