The BEST approach for the technician to implement in order to minimize manual intervention in the backup strategy is:
A. Backup as a service.
Backup as a service (BaaS) typically involves using cloud-based backup solutions that are managed by third-party providers. These services automate the backup process, provide redundancy, and often include features like regular snapshots, retention policies, and disaster recovery capabilities. BaaS can significantly reduce manual intervention and enhance data protection compared to traditional on-premises backup solutions.
Options B, C, and D do not directly address the need to minimize manual intervention in the backup process, and they may not provide the same level of automation and convenience as a BaaS solution. RAID 1 is a storage redundancy technique, long-term storage refers to archiving data, and getting new backup devices wouldn't necessarily reduce manual intervention unless the devices are part of a more automated backup strategy.