How would you answer an interview scenario involving Multi-stage Docker builds?

For an interview scenario involving Multi-stage Docker builds, I would first clarify the business goal, scale, constraints, and the failure or quality attribute the interviewer wants to explore. Multi-stage builds use multiple FROM stages so build dependencies can be separated from the final runtime image. In this scenario, for a .NET application, explain how you would use the SDK image for build and the ASP.NET runtime image for the final container. 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.