Queue
Jharkhand Board · Class 12 · Computer Science
Most important questions from Queue for Jharkhand Board Class 12 Computer Science board exam 2026. MCQs, short answer, and long answer questions with marks.
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Which of the following are valid queue operations?
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Enqueue, Dequeue, Peek, IsEmpty
Enqueue adds elements, Dequeue removes elements, Peek views front element, and IsEmpty checks if queue is empty. Push is a stack operation.
In Python list implementation of queue, which method is used for enqueue operation?
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append(element)
append() adds element at the end of list (rear of queue). insert(0, element) would add at front, pop(0) removes from front.
Which Python method removes an element from the front of a queue implemented using list?
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pop(0)
pop(0) removes element from index 0 (front of queue). pop() without parameter removes from end of list.
What does DEQUE stand for?
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Double Ended Queue
DEQUE stands for Double Ended Queue, allowing insertion and deletion from both ends unlike regular queue.
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