Google Cloud Digital Leader — Question 152

An organization has an ecommerce application that requires a cost-effective, transactional database. The application will only serve customers in a single region. Which service should they use?

Answer options

• A. BigQuery
• B. Cloud Bigtable
• C. Cloud Spanner
• D. Cloud SQL

Correct answer: D

Explanation

Cloud SQL is the appropriate choice as it provides a cost-effective, relational database solution suitable for transactional applications, especially in a single-region context. BigQuery is designed for analytical queries rather than transactions, Cloud Bigtable is optimized for NoSQL workloads, and Cloud Spanner, while offering strong transactional support, is typically more expensive and complex than necessary for a single-region application.