Q. 29 A hard disk with a transfer rate of 10 M bytes/second is constantly transferring
data to memory using DMA. The processor runs at 600 MHz. and takes 300 and
900 clock cycles to initiate and complete DMA transfer respectively. If the size of
the transfer is 20 Kbytes, what is the percentage of processor time consumed for
the transfer operation?
(A) 5.0%
(B) 1.0%
(C) 0.5%
(D) 0.1%
Answer: (D)
Explanation: 
