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📝 FCFS scheduling in Disk Scheduling

📖 From Operating System • 10. Mass Storage Structure • 8 questions available

Practice MCQs for FCFS scheduling in Disk Scheduling. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-26

2
Easy Questions
4
Medium Questions
2
Hard Questions

📝 Sample Questions

Q1. What does FCFS stand for in disk scheduling?

🔹 A. First-Cut, First-Serve
🔹 B. First-Come, First-Served
🔹 C. Fast-Cache, File-Store
🔹 D. Fixed-Cycle, Fair-Shift

💡 Difficulty: easy | ✅ Correct: B

Q2. How does FCFS affect average seek time compared to the Shortest Seek Time First (SSTF) algorithm?

🔹 A. FCFS typically yields a lower average seek time
🔹 B. FCFS and SSTF produce identical average seek times
🔹 C. FCFS usually results in a higher average seek time
🔹 D. FCFS eliminates rotational latency altogether

💡 Difficulty: medium | ✅ Correct: C

Q3. A disk controller receives the following request timestamps (in milliseconds) and cylinder numbers: (10, 120), (12, 130), (15, 115), (20, 125). Using FCFS, what is the average rotational latency if the disk rotates at 7200 RPM?

🔹 A. \( \approx 4.17 \) ms
🔹 B. \( \approx 5.00 \) ms
🔹 C. \( \approx 6.94 \) ms
🔹 D. \( \approx 8.33 \) ms

💡 Difficulty: hard | ✅ Correct: A

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🔗 Related Topics

📝 Magnetic disks📝 Solid state disks📝 Magnetic tapes📝 Disk Structure📝 Host attached storage
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