CompTIA Server+ (SK0-005) — Question 187

An application needs 10GB of RAID 1 for log files, 20GB of RAID 5 for data files, and 20GB of RAID 5 for the operating system. All disks will be 10GB in capacity. Which of the following is the minimum number of disks needed for this application?

Answer options

• A. 6
• B. 7
• C. 8
• D. 9

Correct answer: C

Explanation

RAID 1 requires two disks for redundancy, so 10GB of log files needs 2 disks. RAID 5 requires a minimum of three disks; therefore, 20GB for data files and 20GB for the operating system each need 3 disks. In total, you need 2 (RAID 1) + 3 (data files) + 3 (OS) = 8 disks, making C the correct answer, while the other options do not meet the minimum requirement.