How would you answer an interview scenario involving disaster recovery?
For an interview scenario involving disaster recovery, I would first clarify the business goal, scale, constraints, and the failure or quality attribute the interviewer wants to explore. Disaster recovery restores service and data after major failures according to recovery time and recovery point objectives. In this scenario, the business requires a 30-minute RTO and 5-minute RPO. Explain how these objectives influence architecture. For production, define RTO and RPO, choose backup or standby patterns, automate recovery steps, protect backups, and run recovery exercises. I would then explain the main alternatives and tradeoffs, identify likely failure modes, and describe how I would validate the solution through testing, observability, security controls, and recovery or rollback planning.