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Question

What does the kernel do when an application performs a slow I/O operation?

a.

It interrupts the thread and runs another one

b.

It stalls and waits for the operation to complete

c.

It lets the thread continue running

d.

It switches to run another thread while the operation is being performed

Posted under Reverse Engineering

Answer: (d).It switches to run another thread while the operation is being performed Explanation:The kernel switches to run another thread while the hardware is performing the operation.

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Q. What does the kernel do when an application performs a slow I/O operation?
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