A real-time operating system. (RTOS) is

题库2022-08-02 72

问题 A real-time operating system. (RTOS) is an operating system intended to serve (请作答此空) application process data as it comes in, typically without buffering delays. A key ( ) of a RTOS is the level of its consistency concerning the amount of time it takes to accept and complete an application’s task; the variability is jitter. A hard real-time operating system has ( ) jitter than a soft real-time operating system. The chief design goal is not high throughput, but rather a guarantee of a soft or hard performance category. A RTOS has an advanced algorithm for scheduling. ( ) flexibility enables a wider, computer-system orchestration of process priorities, but a real-time OS is more frequently dedicated to a narrow set of applications. Key factors in a real-time OS are minimal ( ) latency and minimal thread switching latency.A.normalB.real-timeC.userD.kernel

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答案 B

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中级嵌入式系统设计师

软件水平考试初中高级

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