Which of the following is an application of queues?

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Question: Which of the following is an application of queues?

Options:

Correct Answer: Breadth-first search in graphs

Solution:

Queues are used in breadth-first search algorithms for traversing graphs, as they follow the FIFO (First In, First Out) principle.

Which of the following is an application of queues?

Which of the following is an application of queues?

Step 1: Understand what a queue is. A queue is a data structure that follows the FIFO principle, meaning the first item added is the first one to be removed.
Step 2: Learn about breadth-first search (BFS). BFS is an algorithm used to explore or traverse graphs or tree structures.
Step 3: Recognize how BFS works. It starts at a specific node and explores all its neighbors before moving on to the next level of nodes.
Step 4: Identify the role of queues in BFS. A queue is used to keep track of the nodes that need to be explored next, ensuring they are processed in the order they were added.
Step 5: Conclude that queues are essential for implementing BFS because they maintain the correct order of node exploration.

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