Answer-first summary for fast verification
Answer: Cloud Spanner
**Correct Answer: C. Cloud Spanner** - **A. Cloud Firestore** is incorrect because it is a NoSQL document database, not a relational database, which is required for this scenario. - **B. Cloud SQL** is incorrect because it is a regional service that requires manual configuration changes to scale and is not globally distributed. - **C. Cloud Spanner** is correct because it is a globally distributed, horizontally scalable, and strongly consistent relational database service. It automatically scales with user growth without the need for manual configuration changes, making it ideal for global workloads. - **D. Cloud Datastore** is incorrect because it is a NoSQL document database and a predecessor to Cloud Firestore, not suitable for relational database requirements. For more information, visit: - [Cloud Spanner](https://cloud.google.com/spanner) - [Cloud Datastore](https://cloud.google.com/datastore) - [Cloud Firestore](https://firebase.google.com/docs/firestore) - [Cloud SQL](https://cloud.google.com/sql)
Author: LeetQuiz Editorial Team
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Your team is developing a global e-commerce website and has decided on using a relational database. The exact size of the user base is uncertain due to mixed marketing survey results. You need a database solution that can scale with user growth with minimal configuration changes. Which storage option is most suitable?
A
Cloud Firestore
B
Cloud SQL
C
Cloud Spanner
D
Cloud Datastore
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