Your question is Multi-Region Consistency Architecture. 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).
Explain the architecture of a service that needs to ensure strict data consistency across multiple regions.
Clarify the consistency and availability requirements, then describe replication, consensus, failover, conflict prevention, and recovery. Address how the design behaves during network partitions, region loss, retries, and concurrent writes.
