The host repeatedly checks if the controller is busy until it is not. It is in a loop that status register's busy bit becomes clear. This is called _____________ and a mechanism for the hardware controller to notify the CPU that it is ready is called ___________.

The host repeatedly checks if the controller is busy until it is not.

1.	The host repeatedly checks if the controller is busy until it is not. It is in a loop that status register's busy bit becomes clear. This is called _____________ and a mechanism for the hardware controller to notify the CPU that it is ready is called ___________.
A.	Interrupt and Polling
B.	Polling and Spooling
C.	Polling and Interrupt
D.	Deadlock and Starvation
Answer» D. Deadlock and Starvation

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The host repeatedly checks if the controller is busy until it is not. It is in a loop that status register's busy bit becomes clear. This is called ___ and a mechanism for the hardware controller to notify the CPU that it is ready is called _.

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