Question

The BUS busy line is used __________

(a) To indicate the processor is busy

(b) To indicate that the BUS master is busy

(c) To indicate the BUS is already allocated

(d) None of the mentioned

This question was posed to me in a job interview.

My doubt is from Bus Arbitration in section Input/Output Organisation of Computer Architecture

Answer 1

Right option is (c) To indicate the BUS is already allocated

To explain: None.