Which of the following statements are true for full virtualization? (Choose TWO correct answers.)

Which of the following statements are true for full virtualization? (Choose TWO correct answers.)
A . Full virtualization does not require changes to the guest operating systems.
B . Full virtualization has no performance impact compared to a non-virtualized bare-metal installation on the same machine.
C . Full virtualization has a severe performance impact and should not be used in production environments.
D . Full virtualization may be supported by special CPU extensions that provide better performance.
E . Full virtualization always requires additional software components and cannot be done using Linux only.

Answer: AD