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Ch4 行程與執行緒管理
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60. Process States、Dispatcher
#OS-04-060
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Process States
Dispatcher
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Which of the following are valid Process States and transitions in a standard 5-state process model?
A
Running → Ready: This transition happens when a process is preempted by the scheduler (e.g., time quantum expires).
B
Blocked (Waiting) → Running: A process moves directly to Running when its I/O operation completes.
C
Ready → Running: This transition is managed by the Dispatcher.
D
Running → Blocked (Waiting): This transition occurs when a process requests an I/O operation or waits for an event.
E
Terminated → Ready: A zombie process can be restarted by the parent process.
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