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(Solved): Consider the set of four processes P1, P2, P3, and P4, each with a process execution time of 5, ...


Consider the set of four processes P1, P2, P3, and \( P 4 \), each with a process execution time of \( 5,10,15 \), and 20 mil

Consider the set of four processes P1, P2, P3, and , each with a process execution time of , and 20 milliseconds. The process execution consists of CPU burst time and burst time. If the CPU scheduling policy is round robin with time stamp 2 milliseconds. What will be the average turnaround time. 35.5 milliseconds 32 milliseconds 27 milliseconds None


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option d is the correct
To calculate the average turnaround time for the given set of processes using the round-robin scheduling policy, we need to consider the CPU burst time and I/O burst time for each process.

Given:
Process P1: Execution time = 5 milliseconds
Process P2: Execution time = 10 milliseconds
Process P3: Execution time = 15 milliseconds
Process P4: Execution time = 20 milliseconds

Let's calculate the total time required for each process to complete its CPU burst and I/O burst.

Process P1:
CPU burst time = 80% of 5 milliseconds = 4 milliseconds
I/O burst time = 20% of 5 milliseconds = 1 millisecond

Process P2:
CPU burst time = 80% of 10 milliseconds = 8 milliseconds
I/O burst time = 20% of 10 milliseconds = 2 milliseconds

Process P3:
CPU burst time = 80% of 15 milliseconds = 12 milliseconds
I/O burst time = 20% of 15 milliseconds = 3 milliseconds

Process P4:
CPU burst time = 80% of 20 milliseconds = 16 milliseconds
I/O burst time = 20% of 20 milliseconds = 4 milliseconds
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