Ding Ltd. is a firm specialized in intellectual property business. A new video streaming application needs to be
installed for the purpose of conducting the annual awareness program as per the firm security program. The
application will stream internally copyrighted computer based training videos. The requirements for the
application installation are to use a single server, low cost technologies, high performance and no high
availability capacities.
In regards to storage technology, what is the most suitable configuration for the server hard drives?

A.
Single hard disk (no RAID)

B.
RAID 0

C.
RAID 1

D.
RAID 10

Explanation:
The questions states that the requirements are low cost technologies, high performance and no high availability
capacities.
RAID Level 0 creates one large disk by using several disks. This process is called striping. It stripes data
across all disks (but provides no redundancy) by using all of the available drive space to create the maximum
usable data volume size and to increase the read/write performance.
Incorrect Answers:
A: Single hard disk does meet the low cost requirement and no high availability but it does not provide high
performance.
C: RAID 1 (mirroring) does not provide high performance; it does provide high cost and high availability. This
does not meet the requirements.
D: RAID 10 does provide high performance but it is an expensive solution with high availability capacities. This
does not meet the requirements.

Krutz, Ronald L. and Russell Dean Vines, The CISSP Prep Guide: Mastering the CISSP and ISSEP Exams,
2nd Edition, Wiley Publishing, Indianapolis, 2004, p. 65