In which scenario is implementing data mirroring as the recovery strategy most appropriate?

Implementing data mirroring as a recovery strategy is most appropriate when the recovery point objective (RPO) is low. The RPO refers to the maximum allowable amount of data loss measured in time. A low RPO means that an organization needs to ensure minimal data loss, typically requiring real-time or near-real-time replication of data to a secondary site.

Data mirroring keeps an identical copy of data at different locations, meaning that any changes made to the primary data are immediately reflected in the mirrored data. This approach aligns with a low RPO, as it minimizes the amount of data that could be lost in the event of an incident, allowing for quick recovery with minimal impact on operations.

In scenarios where disaster tolerance is high or the recovery time objective (RTO) is high, other strategies might be more appropriate. High disaster tolerance indicates that an organization might be able to afford more downtime or data loss, making a less stringent recovery strategy viable. Similarly, a high RTO suggests that the organization can wait longer to recover data, which may not necessitate the immediacy that data mirroring provides.