How would you answer an interview scenario involving load balancing and health in Ingress?

For an interview scenario involving load balancing and health, I would first clarify the business goal, scale, constraints, and the failure or quality attribute the interviewer wants to explore. Ingress controllers distribute incoming traffic across healthy service endpoints according to controller and service behavior. In this scenario, users see errors during every rolling deployment. Explain how readiness and connection draining could fix the issue. For production, define readiness probes, graceful shutdown, connection draining, and controller health metrics. 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.