Performance and Operational Readiness Questions

Examines how systems behave under load and what is required to operate them reliably in production. Topics include identifying performance bottlenecks, database query optimization, cache design and invalidation implications, capacity planning, monitoring and observability practices, instrumentation and alerting, and the operational burden that code changes introduce. Also covers deployment readiness, rollback and mitigation strategies, run books and maintaining service level objectives and error budgets from an operational perspective.