Which technology should be included in the disaster recovery plan to prevent data loss?

Including offsite backups in a disaster recovery plan is essential for preventing data loss because they provide a safeguard against localized disasters such as fires, floods, or hardware failures that can affect primary data storage. Offsite backups ensure that copies of critical data are stored in a separate geographic location, minimizing the risk of total data loss. This allows organizations to restore their data and resume operations after a catastrophic event.

In contrast, locked racks, while enhancing physical security, do not directly contribute to data recovery in the event of data loss; they primarily protect against unauthorized access. Video surveillance serves a different purpose, primarily focusing on monitoring and security rather than data recovery. System patches are crucial for maintaining system security and functionality, but they do not serve as a recovery measure for lost data. Therefore, offsite backups stand out as the most effective option for ensuring data availability in a disaster recovery scenario.