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Answer: Use Cloud Spanner in a multi-region configuration.
Given the requirement to start small and scale globally with minimal downtime, Cloud Spanner is the best choice due to its horizontal scalability and global distribution capabilities. Starting with a regional configuration (Option A) is cost-effective for the pilot phase but lacks global scalability. A multi-region configuration (Option B) is ideal for global expansion and high availability, making it the correct choice for long-term needs. Cloud SQL (Options C and D) is not as scalable or globally distributed as Cloud Spanner, making them less suitable for the described scenario.
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How should you design a database strategy for a new web application that begins with a small pilot in one country but must scale to support millions of users globally while maintaining 24/7 availability with minimal maintenance downtime?
A
Use Cloud Spanner in a regional configuration.
B
Use Cloud Spanner in a multi-region configuration.
C
Use Cloud SQL with cross-region replicas.
D
Use highly available Cloud SQL with multiple zones.
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