When designing a fault-tolerant, globally distributed application that requires low-latency data access and strong transactional consistency across regions, which database service is recommended?

*Cloud Spanner with a multi-region configuration is the recommended database service for a fault-tolerant, globally distributed application requiring low-latency data access and strong transactional consistency across regions. Cloud Spanner is a fully managed, scalable, relational database that merges traditional database features with NoSQL scalability. Its multi-region configuration facilitates data distribution across geographic locations, ensuring low latency and high availability. Cloud Spanner's strong transactional consistency is vital for applications needing reliable and precise data management across distributed environments. In contrast, other database services like Cloud SQL, Cloud Bigtable, Firestore, or Cloud Memorystore may excel in certain aspects but do not offer the combined global distribution, low latency, and strong consistency features on par with Cloud Spanner, making it the most suitable choice for such demanding requirements.*