📝 Programming environment virtualization

Q1. What does VCPU stand for in virtualization?

💡 Difficulty: easy | ✅ Correct: A

Q2. A hypervisor on a CPU lacking hardware virtualization extensions must handle a privileged instruction executed by a guest OS. Which technique should the VMM use to correctly process this instruction?

💡 Difficulty: medium | ✅ Correct: A

Q3. Suppose a new CPU adds a virtualization extension that allows guest kernel mode to run in a separate privilege ring without trapping. How would this affect the need for trap-and-emulate for privileged instructions?

💡 Difficulty: hard | ✅ Correct: A