CompTIA Security+ Exam Prep

Answer: C - Redundant Array of Inexpensive Disks (RAID) is technology that is used for performance improvement. It combines several physical disks and aggregates them into logical arrays. When data are saved, the information is written across all drives. A RAID appears as a single drive to applications and other devices.

When data are written across all drives, the technique of striping is used. This activity divides and writes the data over several drives. The write performance in not affected, but the read performance is increased dramatically and only two seconds or less to read the same data from the disks.