When an element is added to a queue, it is added to the rear. When an element is removed, it is removed from the
A) rear.
B) middle.
C) front.
D) All of the above
E) None of the above

Question

Quizplus · Accepted Answer

When an element is added to a queue, it is added to the rear, and thus, the element at the front of the queue is the one that has been in the queue the longest (FIFO). Therefore, when an element is removed, it is removed from the front. Therefore, choice C is correct, and choices A, B, D, and E are incorrect.

When an Element Is Added to a Queue, It Is