📝 Live migration and Virtualization

📖 From Operating System • 16. Virtual Machines • 16 questions available

Practice MCQs for Live migration and Virtualization. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-27

Easy Questions

Medium Questions

Hard Questions

📝 Sample Questions

Q1. What is live migration in virtualization?

🔹 A. The process of moving a running VM's storage to a new physical host while shutting it down

🔹 B. Transferring a running VM's memory and execution state to another host with minimal downtime

🔹 C. Cloning a VM to create a duplicate instance on the same host

🔹 D. Migrating only the virtual disks of a VM to a different datastore

💡 Difficulty: easy | ✅ Correct: B

Q2. A data center has limited network bandwidth. Which migration technique best balances downtime and total transfer time?

🔹 A. Pre‑copy migration

🔹 B. Post‑copy migration

🔹 C. Hybrid migration that combines pre‑ and post‑copy phases

🔹 D. No migration, clone the VM instead

💡 Difficulty: medium | ✅ Correct: C

Q3. Which statement best describes the trade‑offs between pre‑copy and post‑copy migration?

🔹 A. Pre‑copy uses less network bandwidth but has higher risk of failure

🔹 B. Post‑copy minimizes total data transferred but can suffer from page‑fault latency

🔹 C. Pre‑copy guarantees zero downtime while post‑copy always pauses the VM

🔹 D. Post‑copy always outperforms pre‑copy in every scenario

💡 Difficulty: hard | ✅ Correct: B

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