Discussion
Which of the following operations can be performed on a queue ?
Answer: C
The operations on a queue are Enqueue and Dequeue.
A queue is a first-in, first-out structure: enqueue adds an element at the rear and dequeue removes one from the front.
Push and pop are the stack's operations, at a single end, so 'All of the above' is wrong too.
Queues are used in printer spooling, CPU scheduling and breadth-first search.
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