Design a queue using static memory allocation.

To design a queue using static memory allocation, you can use a fixed-size array. Two index variables, front and rear, are needed to keep track of the queue's beginning and end. front points to the first element, and rear points to the last. When enqueuing, increment rear and add the element at that position. When dequeuing, increment front and return the element at the old front position. Circular array implementation is crucial to efficiently reuse space when elements are dequeued from the front and the array wraps around.