GATE CSE 1998 | File System IO and Protection Question 26 | Operating Systems

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GATE CSE 1998

MCQ (Single Correct Answer)

-0.3

Which of the following is true?

Unless enabled, a $$CPU$$ will not be able to process interrupts.

Loop instructions cannot be interrupted till they complete.

A processor checks for interrupts before executing a new instruction.

Only level triggered interrupts are possible on microprocessors.

GATE CSE 1998

MCQ (Single Correct Answer)

-0.3

Which of the following devices should get higher priority in assigning interrupts?

Hard disk

printer

Keyboard

Floppy disk

GATE CSE 1997

MCQ (Single Correct Answer)

-0.3

The correct matching for the following pairs is

(a) Disk scheduling $$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$(1) Round robin
(b) Batch processing $$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ (2) $$SCAN$$
(c) Time sharing $$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ (3) $$LIFO$$
(d) Interrupt processing $$\,\,\,\,\,\,\,\,\,\,\,$$(4) $$FIFO$$

$$a - 3,\,\,b - 4,\,\,c - 2,\,\,d - 1$$

$$a - 4,\,\,b - 3,\,\,c - 2,\,\,d - 1$$

$$a - 2,\,\,b - 4,\,\,c - 1,\,\,d - 3$$

$$a - 3,\,\,b - 4,\,\,c - 3,\,\,d - 2$$

GATE CSE 1997

MCQ (Single Correct Answer)

-0.3

When an interrupt occurs, an Operating System

Ignore the interrupt

Always changes state of interrupted process after processing the interrupt

Always resumes execution of interrupted process after processing the interrupt

May change state of interrupted processes to ''blocked'' and schedule another process.