PROFESSIONAL-CLOUD-DATABASE-ENGINEER · Question #51
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…
The correct answer is A. Use Cloud Spanner in a regional configuration. Cloud Spanner regional (option A) is the right starting point for a single-country pilot. It provides 99.999% availability within the region with zero scheduled maintenance downtime - unlike Cloud SQL, which requires maintenance windows. It is fully ACID-compliant and can…
Question
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?
Options
- AUse Cloud Spanner in a regional configuration.
- BUse Cloud Spanner in a multi-region configuration.
- CUse Cloud SQL with cross-region replicas.
- DUse highly available Cloud SQL with multiple zones.
How the community answered
(38 responses)- A61% (23)
- B24% (9)
- C11% (4)
- D5% (2)
Explanation
Cloud Spanner regional (option A) is the right starting point for a single-country pilot. It provides 99.999% availability within the region with zero scheduled maintenance downtime - unlike Cloud SQL, which requires maintenance windows. It is fully ACID-compliant and can horizontally scale to millions of users. A regional configuration is significantly more cost-effective than multi-region (option B) for an initial pilot where global reach is not yet needed. Cloud SQL with cross-region replicas (option C) or multi-zone HA (option D) cannot match Cloud Spanner's maintenance-free operation or its ability to scale to millions of global users without re-architecting.
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