GATE | GATE CS 2020 | Question 22

Consider the following statements about process state transitions for a system using preemptive scheduling.

I. A running process can move to ready state.
II. A ready process can move to running state.
III. A blocked process can move to running state.
IV. A blocked process can move to ready state.

Which of the above statements are TRUE ?
(A) I, II, and III only
(B) II and III only
(C) I, II, and IV only
(D) I, II, III and IV only

Answer: (C)
Explanation: According to process state transitions for a system using preemptive scheduling:

So, a blocked process can NOT move to running state.

Only statements I, II, and IV are correct.

Option (C) is true.

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