Swapping _______ be done when a process has pending I/O, or has to execute I/O operations only into operating system buffers.
A. must
B. can
C. must never
D. maybe
Answer:A
Swapping _______ be done when a process has pending I/O, or has to execute I/O operations only into operating system buffers.
A. must B. can C. must never D. maybe
Explanation: None.