A retail company wants to establish the frequency at which it needs to backup its critical data to ensure it can be restored in case of a disruption with the least amount of acceptable loss in recovery.
The correct answer is D — Recovery point objective (RPO).
According to WGU Cybersecurity Architecture and Engineering (KFO1 / D488), the RPO defines the maximum amount of data loss that is tolerable in terms of time. It sets the backup frequency to ensure that in the event of a disruption, no more than the specified amount of data is lost.
Continuous data protection (A) is a method but not the term for the metric. BIA (B) identifies impacts but does not define backup timing. DR (C) refers to the overall recovery process, not backup frequency.
Reference Extract from Study Guide:
"Recovery point objective (RPO) defines the maximum age of files that must be recovered from backup storage for normal operations to resume after a failure."
— WGU Cybersecurity Architecture and Engineering (KFO1 / D488), Disaster Recovery and Recovery Objectives
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