Which of the following traversal methods uses a queue data structure?

Which of the following traversal methods uses a queue data structure?

Step 1: Understand what a traversal method is. It is a way to visit all the nodes in a tree or graph.
Step 2: Learn about different traversal methods. Common ones include in-order, pre-order, post-order, and level-order.
Step 3: Identify what a queue is. A queue is a data structure that follows the First In, First Out (FIFO) principle.
Step 4: Focus on level-order traversal. This method visits all nodes at the present depth level before moving on to nodes at the next depth level.
Step 5: Realize that level-order traversal uses a queue to keep track of nodes. When a node is visited, its children are added to the queue.
Step 6: Conclude that level-order traversal is the method that uses a queue data structure.

No concepts available.