Welcome to your interview.
The question is on your right: Reactive Spring WebFlux End to End. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
Explain how you would build a reactive Spring WebFlux service end to end, including when to use Mono vs Flux, how backpressure works, how to avoid blocking calls, and how you would handle timeouts, retries, and error handling in production.