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    PracticeGCP Associate Cloud Engineer (ACE)GCP Associate Cloud Engineer Practice Exam 6Question 16
    Medium1 markMultiple Choice
    Domain 2.3: Planning and configuring data storage optionsDatabasesCloud SpannerRelationalGlobal

    GCP ACE · Question 16 · Domain 2.3: Planning and configuring data storage options

    You are designing the database backend for a new global e-commerce platform. The database must support strong relational consistency (ACID transactions), handle massive horizontal scaling to support millions of users globally, and provide high availability across multiple regions.

    Which Google Cloud database service is the BEST fit for these requirements?

    Answer options:

    A.

    Cloud SQL

    B.

    Cloud Bigtable

    C.

    Cloud Spanner

    D.

    Firestore

    How to approach this question

    Look for the combination of 'relational/ACID' AND 'global horizontal scaling'. This unique combination points exclusively to Cloud Spanner.

    Full Answer

    C.Cloud Spanner✓ Correct
    Cloud Spanner is the only Google Cloud database service that combines the benefits of relational database structure (schemas, SQL queries, strong ACID consistency) with non-relational horizontal scale (scaling across multiple regions globally). Cloud SQL is relational but scales vertically and is regional. Bigtable and Firestore scale globally but are NoSQL databases.

    Common mistakes

    Choosing Cloud SQL because it's relational, ignoring the 'massive horizontal scaling globally' requirement.
    Question 15All questionsQuestion 17

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