📝 Selecting a RAID level in RAID structure

📖 From Operating System • 10. Mass Storage Structure • 11 questions available

Practice MCQs for Selecting a RAID level in RAID structure. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-26

Easy Questions

Medium Questions

Hard Questions

📝 Sample Questions

Q1. Recall: Which RAID level provides block-level striping with distributed parity, allowing the array to survive a single disk failure?

🔹 A. RAID 0

🔹 B. RAID 1

🔹 C. RAID 5

🔹 D. RAID 10

💡 Difficulty: easy | ✅ Correct: C

Q2. Conceptual: How does the write performance of RAID 0 compare to RAID 5, and what causes the difference?

🔹 A. RAID 0 writes are faster because no parity is calculated

🔹 B. RAID 5 writes are faster because parity is pre‑computed

🔹 C. Both have identical write speeds

🔹 D. RAID 0 writes are slower due to striping overhead

💡 Difficulty: medium | ✅ Correct: A

Q3. Conceptual: Explain why a RAID 5 array with many small disks may suffer from the write‑hole problem, and how RAID 6 mitigates this issue.

🔹 A. The write‑hole occurs when a power loss corrupts parity; RAID 6 adds a second parity to protect against this

🔹 B. RAID 5’s single parity is insufficient for any failure; RAID 6 uses mirroring instead

🔹 C. RAID 5 does not suffer from write‑hole; only RAID 6 does

🔹 D. RAID 6 eliminates the write‑hole by using faster disks

💡 Difficulty: hard | ✅ Correct: A

⬆️ View all questions in the quiz below

🔗 Related Topics

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

🚀 Start Quiz 📝 Practice Mode