A system has RPO 15 minutes and usually replicates within 5 minutes. Which additional evidence is needed before claiming the RPO is met under disaster conditions?

Choose the single best answer.

A.Only the count of deployed frontend instances
B.Only the duration of the DNS TTL
C.Only the average lag during a quiet day
D.Lag and usable consistent recovery points under representative load and failure conditions

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✓ Correct answer

Lag and usable consistent recovery points under representative load and failure conditions

Typical lag is not a worst-case recovery guarantee. Validate replication under stress and the usable state across dependencies. A quiet average, frontend count, or DNS TTL cannot establish the data-loss target. Source guide: PDF page(s) 68.

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