Which of the following best describe the out-of -band?

A.
To achieve out-of-band virtualization, you do not need to install appliance-related software on every server.

B.
Out-of-band servers do not offer information about all critical storage components.

C.
An out-of-band appliance enables virtualization of multiple disk farms involving multiple storage servers on the SAN.

D.
None of the above

Explanation:
An out-of-band appliance enables virtualization of multiple disk farms involving multiple storage servers on the SAN. The virtualization appliance supplies volume metadata, which the server uses to translate I/O addresses for the appropriate disk, by way of the appliance.
Incorrect Answers:
A: To achieve out-of-band virtualization, network administrators must install appliance-related software on every server included in the map.
B: The out-of-band servers do provide the administrator with control over, and information about, all critical storage components.
References:

Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 283-290.