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Which is the correct definition of a valid process transition in an operating system?
  • a)
    Wake up: ready → running
  • b)
    Dispatch: ready → running
  • c)
    Block: ready → running
  • d)
    Timer runout: ready → running
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which is the correct definition of a valid process transition in an op...
The statetransition diagram of a process(preemptive scheduling):
Option 1: Wake up: ready → running It is incorrect as when a process wakes up it is shifted from blocked state to ready state and not from ready to running. Option 2: Dispatch: ready → running It is correct as the dispatcher selectively assigns the CPU to one of the process in the ready queue based on a well defined algorithm. Option 3: Block: ready → running It is incorrect as a process is blocked when it is either pre-empted by some other process or due to some i/o operation. So when a process gets blocked it shifts from running state to blocked state. Option 4: Timer runout: ready → running When the time duration of execution of a process expires, the timer interrupts and the process shifts from the running state to ready queue. So, option (B) is correct.
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Which is the correct definition of a valid process transition in an op...
B)Ready: running

b)Ready: running is the correct definition of a valid process transition in an operating system. This transition occurs when a process is moved from the ready state to the running state, indicating that it has been selected by the scheduler to execute on the CPU.
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Which is the correct definition of a valid process transition in an operating system?a)Wake up: ready → runningb)Dispatch: ready → runningc)Block: ready → runningd)Timer runout: ready → runningCorrect answer is option 'B'. Can you explain this answer?
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