Raid Levels — CompTIA A+ Core 1 (220-1101) Practice Questions

RAID (Redundant Array of Independent Disks) levels define how multiple physical drives are combined to achieve performance, redundancy, or both. The 220-1101 exam focuses on the most common configurations: RAID 0 (striping, no redundancy), RAID 1 (mirroring), RAID 5 (striping with distributed parity, requires at least three drives), and RAID 10 (a stripe of mirrors). Understanding the minimum drive count, fault tolerance, and read/write performance trade-offs for each level is essential for answering scenario-based questions about selecting the right storage solution.

Free questions on raid levels