How would you answer an interview scenario involving Strategy pattern?

For an interview scenario involving Strategy pattern, I would first clarify the business goal, scale, constraints, and the failure or quality attribute the interviewer wants to explore. Strategy encapsulates interchangeable algorithms behind a common contract. For production, define a stable interface, select strategies explicitly, keep them stateless when possible, and make selection rules observable and testable. 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.