What STARS service level provides a reliable, minimal function when the primary service level is unavailable?

What STARS service level provides a reliable, minimal function when the primary service level is unavailable?

• A. Backup Service Level (BSL)
• B. Operational Service Level (OSL)
• C. Recovery Service Level (RSL)
• D. Emergency Service Level (ESL)

Answer: (D)

When the primary STARS service is unavailable, you need a dependable, minimal set of capabilities to keep essential operations going. The Emergency Service Level is designed for this exact scenario: it provides a reliable, reduced-function baseline that preserves safety-critical tasks and basic operations until full service is restored or a recovery process is activated. The idea is to continue only what’s necessary to maintain mission continuity, not to operate at full capacity. The other levels serve different purposes: a Backup Service Level aims to provide redundancy but isn’t inherently the guaranteed minimal functionality during an outage; an Operational Service Level assumes normal, full-function operation; a Recovery Service Level is about restoring full capabilities after an outage. ESL is the one specifically built to sustain essential operations when the primary service is down.

When the primary STARS service is unavailable, you need a dependable, minimal set of capabilities to keep essential operations going. The Emergency Service Level is designed for this exact scenario: it provides a reliable, reduced-function baseline that preserves safety-critical tasks and basic operations until full service is restored or a recovery process is activated. The idea is to continue only what’s necessary to maintain mission continuity, not to operate at full capacity.

The other levels serve different purposes: a Backup Service Level aims to provide redundancy but isn’t inherently the guaranteed minimal functionality during an outage; an Operational Service Level assumes normal, full-function operation; a Recovery Service Level is about restoring full capabilities after an outage. ESL is the one specifically built to sustain essential operations when the primary service is down.