305-300 · Question #54
Which of the following statements are true of full virtualization? (Select THREE correct answers)
The correct answer is B. Full virtualization requires no modification to the Guest OS kernel C. Full virtualization works through CPU emulation E. Full virtualization requires time and system resources for emulation. Full virtualization allows unmodified guest operating systems to run in virtual machines, making statement B correct. The hypervisor presents a complete hardware abstraction to the guest OS. Historically and conceptually, full virtualization relies on CPU emulation or…
Question
Options
- AFull virtualization is faster than paravirtualization
- BFull virtualization requires no modification to the Guest OS kernel
- CFull virtualization works through CPU emulation
- DFull virtualization has superior I/O performance through emulated device drivers
- EFull virtualization requires time and system resources for emulation
How the community answered
(13 responses)- A8% (1)
- B77% (10)
- D15% (2)
Explanation
Full virtualization allows unmodified guest operating systems to run in virtual machines, making statement B correct. The hypervisor presents a complete hardware abstraction to the guest OS. Historically and conceptually, full virtualization relies on CPU emulation or hardware-assisted virtualization, making statement C correct. Even with hardware extensions, some degree of emulation is involved. Full virtualization also requires additional system resources and processing time to emulate hardware and manage isolation, making statement E correct.
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