Which of the following is a software layer that interacts between the virtualized operating system and the physical hardware？（）

A.Local laws and regulations
B.Escalation procedure regulations
C.Manufacturer’s regulations
D.Server OEM regulations

A. Redundant power supplies with one power supply connected and one power supply as a hot spare.
B. Redundant power supplies with each connected to a separate power circuit.
C. Redundant power supplies connected via a Y-cable.
D. Redundant power supplies with each connected to the same power circuit.

A.The server needs to have the password service verified and reconfigured.
B.The server administrator has set a password policy in Group Policy.
C.The server has the BIOS setting configured incorrectly.
D.The server is set with a boot password before accessing the OS