Which term describes maintaining essential functions during disruption?

• A. Mean Time to Repair (MTTR)
• B. Mission Essential Functions (MEFs)
• C. Recovery Service Level (RSL)
• D. Privacy Impact Assessment (PIA)

Answer: (B)

The concept being tested is identifying the essential functions that must continue during a disruption. Mission Essential Functions are the critical activities an organization must sustain to fulfill its mission, even in emergencies. By defining MEFs, an organization prioritizes which processes, staff, and resources are most important and ensures they have backup plans, alternate workflows, or redundant systems in place to keep those functions operating when disruptions occur.

Mean Time to Repair focuses on how quickly a failed component can be fixed, not on maintaining ongoing operations during an incident. Privacy Impact Assessment deals with evaluating privacy risks and compliance, not with continuity of core functions. Recovery Service Level is not the standard term used to describe sustaining essential operations during disruption.