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Practice GCP Professional Cloud Architect GCP Professional Cloud Architect Practice Exam 4Question 21

Easy1 markMultiple Choice

Domain 1: Designing and Planning a Cloud Solution ArchitectureCloud SpannerDatabase Selection

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?

Answer options:

Cloud SQL for PostgreSQL

Cloud Spanner

Cloud Bigtable

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

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.

Question 20 All questions Question 22

Practice the full GCP Professional Cloud Architect Practice Exam 4

50 questions · hints · full answers · grading

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