📝 Hardware assistance

📖 From Operating System • 16. Virtual Machines • 14 questions available

Practice MCQs for Hardware assistance. 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

Q1. What is the primary purpose of hardware assistance in virtualization?

🔹 A. To increase CPU clock speed

🔹 B. To reduce memory usage

🔹 C. To enable efficient trapping of privileged instructions

🔹 D. To improve network latency

💡 Difficulty: easy | ✅ Correct: C

Q2. How does hardware-assisted virtualization improve performance compared to pure software trapping?

🔹 A. It eliminates the need for page tables

🔹 B. It allows direct execution of privileged instructions in guest mode

🔹 C. It reduces the number of VM exits

🔹 D. It increases cache size

💡 Difficulty: medium | ✅ Correct: C

Q3. Explain why building blocks such as a virtual CPU (vCPU) scheduler are unnecessary for type 0 hypervisors.

🔹 A. Because type 0 hypervisors run on bare metal and manage resources directly

🔹 B. Because type 0 hypervisors rely on the host OS scheduler

🔹 C. Because type 0 hypervisors do not support multiple VMs

🔹 D. Because type 0 hypervisors use only user-mode processes

💡 Difficulty: hard | ✅ Correct: A

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