UGCNET-Dec2014-III-02

+1 vote

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For switching from a CPU user mode to the supervisor mode following type of interrupt is most appropriate

Internal interrupts
External interrupts
Software interrupts
None of the above

ugcnetdec2014iii
operating-system
interrupts

asked Jul 24, 2016 in Operating System by makhdoom ghaya Boss (30.8k points) | 971 views

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2 Answers

+6 votes

Best answer

ans will be C

as internal interrupts occur due to some internal error (like division by zero)

external interrupts occur due some h/w event like power failure etc

software interrupts or system calls are the most appropriate method for switching from a user mode to kernel mode

examples ctr+C , int 86 etc.

answered Jul 24, 2016 by Sanjay Sharma Boss (49.3k points)
selected Jul 24, 2016 by Kapil

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0 votes

OPTION C IS CORRECT

answered Jul 12, 2017 by Neeraj7375 Active (1.3k points)

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