TANCET
Group Studies
Mock Tests
Notes
Library
Join Now
Question Practice
Share
Target (sec):
00:00
Question 1
Share
Consider a system running under two types of workloads:Ā
(a) CPU-intensive jobs,Ā
(b) I/O-intensive jobs. Which of the following statements about the relative performance of Interrupt-driven I/O and Programmed I/O is correct?
A.
Programmed I/O performs
better for CPU-intensive jobs,Ā
while interrupt-driven I/OĀ
performs better for I/O-
intensive jobs.
B.
Programmed I/O performs
better in both CPU-intensiveĀ
and I/O-intensive workloadsĀ
because it gives the CPU fullĀ
control.
C.
Interrupt-driven I/O performs
better in both CPU-intensiveĀ
and I/O-intensive workloadsĀ
because it always reducesĀ
CPU involvement.
D.
Interrupt-driven I/O performs
better for CPU-intensive jobsĀ
by freeing the CPU, whileĀ
programmed I/O performsĀ
better for I/O-intensive jobsĀ
due to tighter control.
Discussion
Join the Conversation
Log in to post comments and replies.
Log In
Open Discussion