GATE | GATE IT 2006 | Question 13

The process state transition diagram of an operating system is as given below.

Which of the following must be FALSE about the above operating system?

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(A) It is a multiprogrammed operating system
(B) It uses preemptive scheduling
(C) It uses non-preemptive scheduling
(D) It is a multi-user operating system


Answer: (B)

Explanation: A – It is Correct – In a multiprogramming environment,  multiple processes can be in ready state

B – It is Incorrect because once in running state there is no provision to go back to ready state

C – It is Correct because once in running state there is no provision to go back to ready state

D- It is Correct In a multi User environment,  multiple processes can be in ready state

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