Queues in Data Structures MCQ question and answer with solution

A. O(1)

B. O(n)

C. O(log n)

D. O(n log n)

A. Circular Queue

B. Priority Queue

C. Simple Queue

D. Double-ended Queue

A. The queue remains unchanged

B. An overflow error occurs

C. The queue automatically resizes

D. An underflow error occurs

A. By checking if the rear pointer is at the maximum capacity

B. By checking if the front pointer is equal to the rear pointer

C. By checking if the size equals the array size

D. By checking if the array is null

A. Priority Queue

B. Circular Queue

C. Double-ended Queue

D. Simple Queue