Operating System 面试题与答案
Test your skills through the online practice test: Operating System Quiz Online Practice Test
问题 21. What is a Safe State and what is its use in deadlock avoidance?
When a process requests an available resource, system must decide if immediate allocation leaves the system in a safe state. System is in safe state if there exists a safe sequence of all processes.
Deadlock Avoidance: ensure that a system will never enter an unsafe state.
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问题 22. What is the Real-Time System?
A real time process is a process that must respond to the events within a certain time period. A real time operating system is an operating system that can run real time processes successfully.
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