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Operating SystemWhich scheduling policy is most suitable for a time shared operating system: (i) Shortest job first (ii) Round Robin (iii) FCFS (iv) Elevator20222mOPERATING SYSTEMExplain shortest-seek-time-first (SSTF) disk scheduling. Why SSTF scheduling tends to favour middle cylinders over the innermost and outer-most cylinders?201914mOperating SystemExplain shortest-seek-time-first (SSTF) disk scheduling. Why SSTF scheduling tends to favour middle cylinders over the innermost and outer-most cylinders?201914mOperating SystemConsider the following set of processes with the length of the CPU Burst given in milliseconds: | Process | Burst Time | Priority | | :--- | :--- | :--- | | A | 10 | 3 | | B | 1 | 1 | | C | 2 | 3 | | D | 1 | 4 | | E | 5 | 2 | The processes are assumed to have arrived in order A, B, C, D, E all at time 0. Draw the Gantt charts that illustrate the execution of FCFS and SJF scheduling algorithm. Show which algorithm results in the minimum average waiting time.20247m
PreviousWhich page replacement algorithm replaces the page that will not be used for the longest period in the future? (i) Optimal (ii) Second Chance (iii) FIFO (iv) NRUNextExplain system calls and their importance in Operating Systems. Discuss various categories of system calls.
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