Exam-style question
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What is a key advantage of a circular queue over a simple linear queue when positions at the beginning have become free?.
- A.It automatically changes into a priority queue
- B.It can reuse free positions by continuing from the beginning
- C.It removes all items at the same time
- D.It never becomes full
Model answer
What a good answer should say
- It can reuse free positions by continuing from the beginning
Explanation
Why this works
In a circular queue, the rear can wrap around to the beginning of the storage area and use positions freed by removals, provided the queue is not full.
Common mistake
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