In an operating system, which of these scheduling algorithms is best represented by the following statements?Statements:Read the burst time for ready processes.Sort the processes in ascending order of their burst time.Process the list of processes in ascending order. First come, first servedShortest job first (non-preemptive)Shortest job first (preemptive)Priority scheduling
Question
In an operating system, which of these scheduling algorithms is best represented by the following statements?Statements:Read the burst time for ready processes.Sort the processes in ascending order of their burst time.Process the list of processes in ascending order. First come, first servedShortest job first (non-preemptive)Shortest job first (preemptive)Priority scheduling
Solution
The scheduling algorithm best represented by these statements is the Shortest Job First (non-preemptive). Here's why:
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"Read the burst time for ready processes." - This step is common in many scheduling algorithms where the burst time (the time a process needs to complete) is read or determined.
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"Sort the processes in ascending order of their burst time." - This is a key characteristic of the Shortest Job First (SJF) scheduling algorithm. In SJF, processes with the shortest burst time are scheduled first.
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"Process the list of processes in ascending order." - This again points to SJF. Once the processes are sorted based on their burst time, they are processed in that order.
The reason it's non-preemptive SJF and not preemptive is because there's no mention of interrupting a running process if a new process with a shorter burst time arrives, which is a characteristic of preemptive SJF.
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