• Level-order traversal visits all nodes at the current level of a graph or tree before moving to the next level. This is the same principle as Breadth-First Search (BFS), which explores all neighbors of a node before moving to their neighbors. • BFS uses a queue data structure to achieve this level-by-level traversal. The queue ensures that nodes are processed in a First-In, First-Out (FIFO) manner, so all nodes at a particular depth are visited before moving to the next depth.
Which traversal algorithm is used in the breadth-first search (BFS) of a graph?
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