Disadvantages of Circular queue

Answer 1

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Answer 2

It is endless if you don't stop reading it is endless if you don't stop reading it is ...

Answer 3

✓ The biggest disadvantage of circular queue is you can only store queue length elements. If you are using it as a buffer you are limiting your history depth.
✓ Another smaller disadvantage is it's hard to tell an empty queue from a full queue without retaining additional information.