Susan is worried about fault tolerance for her database server. She wants to make sure that if any single drive fails, it can be recovered. Which of the RAID levels would support this goal while implementing distributed parity bits?

The RAID level that supports fault tolerance with distributed parity bits is RAID 5. In RAID 5, data is striped across multiple drives, and parity information is distributed among the drives. This allows for fault tolerance because if any single drive fails, the data can be reconstructed using the parity information from the remaining drives.
RAID 0 does not provide fault tolerance as it is a striping method without redundancy. RAID 1 offers mirroring, where data is duplicated on two drives, providing fault tolerance but without distributed parity. RAID 3 uses dedicated parity drive, not distributed parity, and is not commonly used in modern systems. RAID 5 is a common choice for balancing performance and fault tolerance in scenarios like Susan's where distributed parity is desired.