A hardware RAID implementation is usually:

A.
platform-independent.

B.
platform-dependent.

C.
operating system dependent.

D.
software dependent.

Explanation:
RAID can be implemented in either hardware or software. Each type has its own issues and benefits. A
hardware RAID implementation is usually platform-independent. It runs below the operating system (OS) of the
server and usually does not care if the OS is Novell, NT, or Unix. The hardware implementation uses its own
Central Processing Unit (CPU) for calculations on an intelligent controller card. There can be more than one of
these cards installed to provide hardware redundancy in the server. RAID levels 3 and 5 run faster on
hardware. A software implementation of RAID means it runs as part of the operating system on the file server.
Incorrect Answers:
B: A hardware RAID implementation is not platform-dependent.C: A hardware RAID implementation is not operating system dependent.
D: A hardware RAID implementation is not software dependent.

Krutz, Ronald L. and Russell Dean Vines, The CISSP Prep Guide: Mastering the CISSP and ISSEP Exams,
2nd Edition, Wiley Publishing, Indianapolis, 2004, p. 145