Question
a.
A special CPU instruction that tells the processor to switch to its privileged mode and call a special dispatch routine.
b.
A special CPU instruction that tells the processor to switch to its unprivileged mode and call a special dispatch routine.
c.
A special CPU instruction that tells the processor to switch to its privileged mode and call a normal routine.
d.
A special CPU instruction that tells the processor to switch to its unprivileged mode and call a normal routine.
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Q. What is the mechanism used by operating systems for switching from user mode to kernel mode?
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