How would you answer an interview scenario involving CQRS pattern?

For an interview scenario involving CQRS pattern, I would first clarify the business goal, scale, constraints, and the failure or quality attribute the interviewer wants to explore. CQRS separates models or paths for commands that change state from queries that read state. In this scenario, a reporting-heavy system has complex writes and very different read projections. Explain whether CQRS fits. For production, introduce it where read and write needs genuinely differ, keep consistency expectations explicit, and avoid assuming event sourcing is required. 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.