Your question is Data Consistency Across Distributed Systems. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me how you ensure data consistency across distributed systems you have built or maintained.
Explain how you identify the source of truth, coordinate writes and reads, handle retries and partial failures, and detect or repair divergence. Discuss the tradeoffs between strong and eventual consistency, including any ML feature, training, or serving systems you would consider.
