What is the characteristic of RAID 5 regarding fault tolerance?

RAID 5 is designed to provide fault tolerance through a combination of data striping and parity storage across the drives in the array. The key characteristic of RAID 5 that relates to fault tolerance is its ability to recover from a single drive failure. This is achieved by distributing parity information among the drives, which means that if one drive fails, the data can be reconstructed using the parity information and the data from the remaining operational drives.

In a RAID 5 configuration, the presence of parity allows the system to remain operational, and data integrity is ensured despite the failure of one drive. The system will alert administrators of the fault, and they can replace the failed drive to restore the array to full redundancy. RAID 5 does not provide fault tolerance for multiple drive failures, as additional failures while one drive is down could lead to data loss. This makes the option stating that it allows recovery from only a single drive failure accurate.

Additionally, RAID 5 requires a minimum of three drives to function, but this is not related to fault tolerance; rather, it's a requirement for its setup.