Dell EMC Associate – Information Storage and Management v5 — Question 20

What is the key advantage of RAID 6 compared to RAID 5?

Answer options

• A. Higher usable storage capacity
• B. Fewer disk drives
• C. Higher resiliency
• D. Lower write penalty

Correct answer: C

Explanation

RAID 6 offers higher resiliency compared to RAID 5 because it uses two parity blocks instead of one, allowing it to withstand the failure of two drives simultaneously. The other options are incorrect as RAID 6 typically has lower usable storage capacity, requires more disks, and may have a higher write penalty due to the additional parity calculations.