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Which of the following can preempt the current thread and reschedule the high priority thread in the kernel?

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Which of the following can preempt the current thread and reschedule the high priority thread in the kernel?

(a) interrupt

(b) lpc

(c) file system

(d) memory

The question was posed to me in exam.

The origin of the question is Characteristics of Windows NT-II in chapter Real Time Operating systems of Embedded Systems

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Right answer is (a) interrupt

For explanation I would say: The interrupts and the similar events such as exceptions can pass through the kernel which can preempt the current thread and the can reschedule the high priority thread to process.

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