A medium-sized enterprise has recently revised its disaster recovery plan. During an unexpected power outage, it was observed that certain critical servers did not switch over to the backup generator, causing significant downtime. The backup generator itself was functional, and other non-critical systems remained operational on backup power. Which aspect of the disaster recovery plan was most likely overlooked?
The plan did not have an up-to-date contact list for all critical personnel.
The disaster recovery plan lacked adequately scheduled testing and exercises.
The plan had insufficient details on reporting and monitoring processes for power outages.
There was no designated alternative disaster recovery site selected.