UGC-NET | UGC NET CS 2015 Dec – III | Question 6

A CPU handles interrupt by executing interrupt service subroutine __________.
(A) by checking interrupt register after execution of each instruction
(B) by checking interrupt register at the end of the fetch cycle
(C) whenever an interrupt is registered
(D) by checking interrupt register at regular time interval


Answer: (A)

Explanation: A CPU handles interrupt by executing interrupt service subroutine by checking interrupt register after execution of each instruction.
So, option (A) is correct.

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