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UGC-NET | UGC NET CS 2016 Aug – II | Question 40
Consider three CPU intensive processes P1, P2, P3 which require 20, 10 and 30 units of time, arrive at times 1, 3 and 7 respectively. Suppose operating system is implementing Shortest Remaining Time first (preemptive scheduling) algorithm, then _____ context switches are required (suppose context switch at the beginning of Ready queue and at the end of Ready queue are not counted).
(A)
3
(B)
2
(C)
4
(D)
5
Answer
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