Google Cloud Professional Cloud Database Engineer — Question 54

You are designing a database strategy for a new web application. You plan to start with a small pilot in one country and eventually expand to millions of users in a global audience. You need to ensure that the application can run 24/7 with minimal downtime for maintenance. What should you do?

Answer options

• 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.

Correct answer: A

Explanation

The correct answer is A, as using Cloud Spanner in a regional configuration provides high availability and scalability for a growing user base while ensuring minimal downtime. Options B and C, while also scalable, may not offer the same level of availability and consistency as a regional setup when starting small. Option D, although highly available, lacks the global scalability that Cloud Spanner offers, making it less suitable for future expansion.