In a graph, which traversal method uses a queue data structure?

In a graph, which traversal method uses a queue data structure?

Step 1: Understand what a graph is. A graph consists of vertices (nodes) and edges (connections between nodes).
Step 2: Learn about graph traversal methods. These are ways to visit all the vertices in a graph.
Step 3: Identify the two common traversal methods: BFS (Breadth-First Search) and DFS (Depth-First Search).
Step 4: Know that BFS explores all neighbors of a vertex before moving to the next level. It uses a queue to keep track of which vertex to visit next.
Step 5: Recognize that DFS uses a stack (or recursion) instead of a queue.
Step 6: Conclude that the traversal method that uses a queue is BFS (Breadth-First Search).

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