📝 Paravirtualization

📖 From Operating System • 16. Virtual Machines • 10 questions available

Practice MCQs for Paravirtualization. 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 does the term VCPU represent in a paravirtualized system?

🔹 A. A physical processor core assigned to a guest

🔹 B. A software structure that holds the guest's CPU state

🔹 C. A dedicated hardware thread for virtualization

🔹 D. An emulated peripheral device

💡 Difficulty: easy | ✅ Correct: B

Q2. A guest OS issues a privileged instruction while running in its virtual user mode. Which action should the VMM take to correctly handle this event?

🔹 A. Ignore the instruction and continue execution

🔹 B. Execute the instruction directly on the hardware

🔹 C. Translate the instruction to a safe user-mode operation

🔹 D. Trap the instruction, emulate its effect, and update the VCPU state

💡 Difficulty: medium | ✅ Correct: D

Q3. Why must both virtual user mode and virtual kernel mode be executed in the physical machine's user mode in a paravirtualized environment?

🔹 A. To improve overall system performance

🔹 B. To ensure that any privileged operation by the guest is intercepted by the VMM

🔹 C. Because the hardware only supports one mode at a time

🔹 D. To allow the guest OS to bypass security checks

💡 Difficulty: hard | ✅ Correct: B

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🔗 Related Topics

📝 Overview Virtual Machines 📝 History Virtual Machines 📝 Benefits and Features Virtual Machines 📝 Building Blocks in Virtual Machines 📝 Trap and emulate in Building Blocks

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