How would you answer an interview scenario involving shared responsibility model in Cloud Security?

For an interview scenario involving shared responsibility model, I would first clarify the business goal, scale, constraints, and the failure or quality attribute the interviewer wants to explore. The cloud provider secures the underlying cloud platform while customers remain responsible for their data, identities, configurations, workloads, and other responsibilities that vary by service model. For production, document responsibility by service type, map every control to an owner, and review responsibility changes when moving between IaaS, PaaS, and SaaS. 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.