Question

When an element is removed from a queue, where is it removed from?

Short answer

Answer: An element is removed from the front of the queue when using the dequeue operation.

Step-by-step solution

Introduction to Queues

A queue is a data structure that stores elements in a linear format, following the First-In-First-Out (FIFO) order. This means that the element inserted first in the queue will be the first one to be removed, and so on.

Basic Operations in a Queue

There are two primary operations in a queue: enqueue and dequeue. - Enqueue: This operation adds an element at the end (rear) of the queue. - Dequeue: This operation removes an element from the front of the queue.

Element Removal in Queue

When an element is removed from a queue using the dequeue operation, it is removed from the front of the queue. In a FIFO order, the element that has been in the queue the longest will be removed.