MCQ - Queue in Data Structure

11. A linear list of elements in which deletion can be done from one end (front) and insertion can take place only at the other end (rear) is known as a ?

A Queue
B Stack
C. Tree
D. Linked list

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12. The data structure required for Breadth First Traversal on a graph is?

A. Stack
B. Array
C. Queue
D. Tree

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13. A queue is a ?

A. FIFO (First In First Out) list
B. LIFO (Last In First Out) list
C. Ordered array
D. Linear tree

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14. In Breadth First Search of Graph, which of the following data structure is used?

A. Stack
B. Queue
C. Linked list
D. None of the mentioned

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15. A data structure in which elements can be inserted or deleted at/from both the ends but not in the middle is?

A. Queue
B. Circular queue
C. Dequeue
D. Priority queue

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16. A normal queue, if implemented using an array of size MAX_SIZE, gets full when

A. Rear = MAX_SIZE – 1
B Front = (rear + 1)mod MAX_SIZE
C. Front = rear + 1
D> Rear = front

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17. Queues serve major role in

A. Simulation of recursion
B. Simulation of arbitrary linked list
C. Simulation of limited resource allocation
D. All of the mentioned

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18. Which of the following is not the type of queue?

A. Ordinary queue
B. Single ended queue
C. Circular queue
D. Priority queue

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19. Which of the following properties is associated with a queue?

A. First In Last Out
B. First In First Out
C. Last In First Out
D. None of the mentioned

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20. What does the following piece of code do?

 
public Object function()
{
if(isEmpty())
return -999;
else
{
Object high;
high = q[front];
return high;
}
}

A. Dequeue
B. Enqueue
C. Return the front element
D. None of the mentioned

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