Question

The processor indicates to the devices that it is ready to receive interrupts ________

(a) By enabling the interrupt request line

(b) By enabling the IRQ bits

(c) By activating the interrupt acknowledge line

(d) None of the mentioned

The question was asked by my college director while I was bunking the class.

This interesting question is from Interrupts topic in chapter Input/Output Organisation of Computer Architecture

Answer 1

Correct answer is (c) By activating the interrupt acknowledge line

To elaborate: When the processor activates the acknowledge line the devices send their interrupts to the processor.