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Which of the following statements are true?
  1. Shortest remaining time first scheduling may cause starvation
  2. Preemptive scheduling may cause starvation
  3. Round robin is better than FCFS in terms of response time
  • a)
    1 only
  • b)
    1 and 2 only
  • c)
    2 and 3 only
  • d)
    1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Which of the following statements are true? Shortest remaining time fi...
  • SRTF( Shortest Remaining Timing First)scheduling may cause starvation since the processes which require large CPU burst periods would have to wait.
  • Generally preemptive scheduling doesn't cause starvation but in some cases, it may cause starvation when one process doesn't block due to I/O so others have to wait.
  • In case of response time, it is quite obvious due to involvement of preemption, round robin is better than FCFS, .
Hence, all the statements are true.
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Community Answer
Which of the following statements are true? Shortest remaining time fi...
Shortest Remaining Time First Scheduling and Starvation
- Statement 1: Shortest remaining time first scheduling may cause starvation.
- Explanation: In this scheduling method, processes with shorter remaining times are prioritized. Longer processes may be indefinitely postponed if shorter processes keep arriving, leading to starvation.
Preemptive Scheduling and Starvation
- Statement 2: Preemptive scheduling may cause starvation.
- Explanation: Preemptive scheduling allows a higher-priority process to interrupt a lower-priority one. If high-priority processes continuously arrive, low-priority processes can be starved of CPU time, resulting in starvation.
Round Robin vs. FCFS in Response Time
- Statement 3: Round robin is better than FCFS in terms of response time.
- Explanation: Round Robin scheduling gives each process a fixed time slice, allowing for quicker responses, particularly for interactive tasks. In contrast, First-Come, First-Served (FCFS) can lead to long waiting times, especially if a long process is at the front of the queue.
Conclusion
- All three statements are true:
- Statement 1: True—SRTF can cause starvation.
- Statement 2: True—Preemptive scheduling can lead to starvation.
- Statement 3: True—Round Robin generally improves response time compared to FCFS.
Thus, the correct answer is option 'D': 1, 2, and 3.
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Which of the following statements are true? Shortest remaining time first scheduling may cause starvation Preemptive scheduling may cause starvation Round robin is better than FCFS in terms of response timea)1 onlyb)1 and 2 onlyc)2 and 3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer?
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