Which statement about RAID 0 is true?

Which statement about RAID 0 is true?

• A. RAID 0 provides redundancy by mirroring data.
• B. RAID 0 stripes data with no redundancy.
• C. RAID 0 uses parity to protect data.
• D. RAID 0 requires at least four drives.

Answer: (B)

The main idea is that RAID 0 focuses on speed by distributing data across multiple drives, but it sacrifices any redundancy. In this setup, files are split into chunks and written to different disks in parallel, so read and write operations can happen simultaneously on several drives. That parallelism boosts overall throughput and makes operations faster than a single drive. But because there’s no extra information kept to reconstruct data if a drive fails, loss of any one drive means the data on the whole array is compromised. There’s no mirrored copy and no parity data to rebuild from, which is why this level trades fault tolerance for performance. It’s also worth noting that RAID 0 doesn’t require a fixed large number of drives; it works with two or more disks. The statements about mirroring (redundancy), parity protection, or needing at least four drives don’t describe RAID 0. Mirroring is for redundancy (RAID 1), parity-based protection appears in levels like RAID 5/6, and the four-drive minimum isn’t a requirement for RAID 0. The accurate description is that RAID 0 stripes data with no redundancy.

The main idea is that RAID 0 focuses on speed by distributing data across multiple drives, but it sacrifices any redundancy. In this setup, files are split into chunks and written to different disks in parallel, so read and write operations can happen simultaneously on several drives. That parallelism boosts overall throughput and makes operations faster than a single drive.

But because there’s no extra information kept to reconstruct data if a drive fails, loss of any one drive means the data on the whole array is compromised. There’s no mirrored copy and no parity data to rebuild from, which is why this level trades fault tolerance for performance.

It’s also worth noting that RAID 0 doesn’t require a fixed large number of drives; it works with two or more disks. The statements about mirroring (redundancy), parity protection, or needing at least four drives don’t describe RAID 0. Mirroring is for redundancy (RAID 1), parity-based protection appears in levels like RAID 5/6, and the four-drive minimum isn’t a requirement for RAID 0. The accurate description is that RAID 0 stripes data with no redundancy.