ExpertEasy1 markMultiple Choice
GCP PCA · Question 21 · Domain 1: Designing and Planning a Cloud Solution Architecture
A financial institution is migrating its core banking application to Google Cloud. The application requires a relational database that provides strong global consistency, zero downtime for schema changes, and horizontal scalability. Which database service should you recommend?
A financial institution is migrating its core banking application to Google Cloud. The application requires a relational database that provides strong global consistency, zero downtime for schema changes, and horizontal scalability. Which database service should you recommend?
Answer options:
A.
Cloud SQL for PostgreSQL
B.
Cloud Spanner
C.
Cloud Bigtable
D.
Firestore
How to approach this question
Match 'relational', 'global consistency', and 'horizontal scalability' to the only GCP database that provides all three.
Full Answer
B.Cloud Spanner✓ Correct
Cloud Spanner is uniquely designed for enterprise applications that require both the strong consistency and SQL capabilities of a relational database, and the horizontal scalability and global reach of a NoSQL database. It also supports online schema updates without downtime.
Common mistakes
Choosing Cloud SQL. While relational, it is limited to regional deployment and vertical scaling.
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