The first operation removes an element at the front of the queue and returns a reference to it.

Name: The first operation removes an element at the front of the queue and returns a reference to it.
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Quizplus · Accepted Answer

The first operation described is dequeuing, which indeed removes an element from the front of the queue but typically does not return a reference to it; instead, it returns the value of the removed element.

The First Operation Removes an Element at the Front of the Queue