Three CPU-bound tasks, with execution times of 15, 12 and 5 time units – McqOptions

MCQOPTIONS

1.	Three CPU-bound tasks, with execution times of 15, 12 and 5 time units respectively arrive at times 0, t and 8, respectively. If the operating system implements a shortest remaining time first scheduling algorithm, what should be the value of t to have 4 context switches?Ignore the context switches at time 0 and at the end.
A.	0 < t < 3
B.	t = 0
C.	t < = 3
D.	3 < t < 8
Answer» B. t = 0

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