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📝 Problems with RAID

📖 From Operating System • 10. Mass Storage Structure • 23 questions available

Practice MCQs for Problems with RAID. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-26

5
Easy Questions
10
Medium Questions
8
Hard Questions

📝 Sample Questions

Q1. What does the C‑SCAN disk scheduling algorithm do when it reaches the highest‑numbered cylinder?

🔹 A. It reverses direction and continues servicing requests
🔹 B. It jumps to the lowest‑numbered cylinder and continues in the same direction
🔹 C. It stops processing further requests
🔹 D. It resets the head to the middle cylinder

💡 Difficulty: easy | ✅ Correct: A

Q2. Given the request queue [10, 55, 150, 200, 210] and head at 100, which total head movement does C‑LOOK produce?

🔹 A. 360 cylinders
🔹 B. 350 cylinders
🔹 C. 340 cylinders
🔹 D. 330 cylinders

💡 Difficulty: medium | ✅ Correct: C

Q3. A disk receives requests at times: (0 ms, c=20), (5 ms, c=80), (10 ms, c=30). Simulating C‑SCAN starting at cylinder 0, what is the total head movement after all requests are serviced?

🔹 A. 130 cylinders
🔹 B. 150 cylinders
🔹 C. 170 cylinders
🔹 D. 190 cylinders

💡 Difficulty: hard | ✅ Correct: B

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🔗 Related Topics

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