Your question is Client-Backend Real-Time Sync. 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).
How do you handle data synchronization between the client and backend services in a real-time environment?
Explain an end-to-end design for maintaining consistent state across clients and backend services when updates can arrive out of order, be duplicated, be delayed, or occur while a client is offline. Cover the synchronization protocol, event ordering, retries, conflict resolution, reconnection behavior, and observability. Discuss where machine learning could improve anomaly detection or conflict prioritization without becoming a correctness dependency. Address online versus batch processing, feature freshness, training-serving consistency, and safe fallbacks.