How would you answer an interview scenario involving HTTP methods and status codes?

In an interview, I would first define HTTP methods and status codes and the problem it solves, then explain how I would match method semantics to the operation, preserve safe and idempotent behavior where expected, and return status codes that let clients react without parsing free-form messages. I would also call out the main failure mode: returning 200 for every outcome or using methods inconsistently hides failure semantics and leads to fragile client code. Finally, I would describe how I would test, monitor, and safely roll back or recover the solution.