Which of the following is true about a circular queue?It requires more space than a regular queue.It avoids the problem of wasted space in a regular queue.It can be implemented only using arrays.It can only store integers.
Question
Which of the following is true about a circular queue?It requires more space than a regular queue.It avoids the problem of wasted space in a regular queue.It can be implemented only using arrays.It can only store integers.
Solution
The statement "It avoids the problem of wasted space in a regular queue" is true about a circular queue.
In a regular queue, once the elements are dequeued, the space they occupied cannot be used again. This leads to wasted space if new elements are to be added to the queue.
On the other hand, a circular queue is designed to overcome this problem. It treats the queue as a circular entity, such that the position next to the end of the queue is the beginning of the queue. This way, as elements are dequeued from the front, space is freed up at the rear of the queue to accommodate new elements.
The other statements are not necessarily true. A circular queue does not require more space than a regular queue, it can be implemented using both arrays and linked lists, and it can store any type of data, not just integers.
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