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Q.

What is not a disadvantage of priority scheduling in operating systems?

A

A low priority process might have to wait indefinitely for the CPU

B

If the system crashes, the low priority systems may be lost permanently

C

Interrupt handling

D

None of the mentioned

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MCQ

1.

What is a dequeue?

A

A queue with insert/delete defined for both front and rear ends of the queue

B

A queue implemented with a doubly linked list

C

A queue implemented with both singly and doubly linked lists

D

None of the mentioned

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2.

n elements of a Queue are to be reversed using another queue. The number of

A

2*n

B

4*n

C

n

D

The task cannot be accomplished

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3.

In a queue, the initial values of front pointer f rare pointer r should be

A

0 and 1

B

0 and -1

C

-1 and 0

D

1 and 0

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4.

A

Insertion

B

Deletion

C

Retrieval

D

Traversal

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5.

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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