A systems administrator has a redundant backup system in place. Which of the following should the systems administrator perform to maintain efficient operation and comply with the global standard in t

Modifying RTO policies changes acceptable recovery time targets but does not validate whether existing backups are functional or compliant.

Confirming completion only verifies the backup job finished without error, but does not prove the backup data is restorable or uncorrupted.

Testing backups is the industry-standard practice required by virtually all corporate backup policies and frameworks such as ISO 27001 and NIST SP 800-34. A backup that has never been tested cannot be trusted to restore successfully during an actual disaster. Regular restore tests validate the integrity of backup data and confirm recovery procedures work as expected.

Modifying RPO policies adjusts how much data loss is acceptable but does not address the operational integrity or testability of the backups themselves.