Which of the Following Is Application of Queue Data Structure?


Heather Bennett

Which of the Following Is Application of Queue Data Structure?

The queue data structure is a fundamental concept in computer science and is widely used in various applications. It follows the First-In-First-Out (FIFO) principle, where the element that is inserted first will be the first one to be removed. In this article, we will explore some common applications of the queue data structure.

1. Process Scheduling

In operating systems, process scheduling plays a vital role in managing the execution of multiple processes concurrently. The queue data structure is used to maintain a list of processes waiting to be executed. Each process gets added to the end of the queue as it arrives and gets removed from the front when it is allocated CPU time for execution.

2. Printer Spooling

Queue data structure finds application in printer spooling systems, where multiple print jobs are submitted by different users simultaneously. The print jobs are stored in a queue and processed one by one based on their arrival time. The first job that enters the queue will be printed first, while others wait their turn.

3. Breadth-First Search (BFS) Algorithm

Breadth-First Search (BFS) is a graph traversal algorithm that explores all vertices of a graph in breadth-first order—meaning it visits all vertices at the same level before moving down to deeper levels. A queue data structure is used during BFS to keep track of vertices that need to be visited next, ensuring they are visited in the correct order.

4. Call Center Phone Handling

In call centers, queues are used extensively for handling incoming phone calls. When a call arrives, it is added to the end of the queue and assigned to an available operator.

The operator at the front of the queue attends to the call, and once finished, they are removed from the queue. This ensures calls are handled in the order they were received.

5. Buffer Implementation

Buffers are temporary storage areas that hold data while it is being transferred from one location to another. Queues serve as an ideal data structure to implement buffers due to their FIFO nature. Incoming data is added to the end of the queue, and outgoing data is removed from the front, maintaining the correct order of data transfer.

In conclusion, the queue data structure has a wide range of applications in various domains such as operating systems, network protocols, algorithms, and more. Understanding how queues work and their applications is essential for any programmer or computer science enthusiast.

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