PROFESSIONAL-CLOUD-DATABASE-ENGINEER Exam Details

  • Exam Code
    :PROFESSIONAL-CLOUD-DATABASE-ENGINEER
  • Exam Name
    :Google Cloud Certified - Professional Cloud Database Engineer
  • Certification
    :Google Certifications
  • Vendor
    :Google
  • Total Questions
    :132 Q&As
  • Last Updated
    :Jul 08, 2026

Google PROFESSIONAL-CLOUD-DATABASE-ENGINEER Online Questions & Answers

  • Question 1:

    You are a DBA of Cloud SQL for PostgreSQL. You want the applications to have password-less authentication for read and write access to the database. Which authentication mechanism should you use?

    A. Use Identity and Access Management (IAM) authentication.
    B. Use Managed Active Directory authentication.
    C. Use Cloud SQL federated queries.
    D. Use PostgreSQL database's built-in authentication.

  • Question 2:

    You are designing a physician portal app in Node.js. This application will be used in hospitals and clinics that might have intermittent internet connectivity. If a connectivity failure occurs, the app should be able to query the cached data. You need to ensure that the application has scalability, strong consistency, and multi-region replication. What should you do?

    A. Use Firestore and ensure that the PersistenceEnabled option is set to true.
    B. Use Memorystore for Memcached.
    C. Use Pub/Sub to synchronize the changes from the application to Cloud Spanner.
    D. Use Table.read with the exactStaleness option to perform a read of rows in Cloud Spanner.

  • Question 3:

    Your organization works with sensitive data that requires you to manage your own encryption keys. You are working on a project that stores that data in a Cloud SQL database. You need to ensure that stored data is encrypted with your keys. What should you do?

    A. Export data periodically to a Cloud Storage bucket protected by Customer-Supplied Encryption Keys.
    B. Use Cloud SQL Auth proxy.
    C. Connect to Cloud SQL using a connection that has SSL encryption.
    D. Use customer-managed encryption keys with Cloud SQL.

  • Question 4:

    Your organization stores marketing data such as customer preferences and purchase history on Bigtable. The consumers of this database are predominantly data analysts and operations users. You receive a service ticket from the database operations department citing poor database performance between 9 AM-10 AM every day. The application team has confirmed no latency from their logs. A new cohort of pilot users that is testing a dataset loaded from a third-party data provider is experiencing poor database performance. Other users are not affected. You need to troubleshoot the issue. What should you do?

    A. Isolate the data analysts and operations user groups to use different Bigtable instances.
    B. Check the Cloud Monitoring table/bytes_used metric from Bigtable.
    C. Use Key Visualizer for Bigtable.
    D. Add more nodes to the Bigtable cluster.

  • Question 5:

    You are migrating an on-premises application to Google Cloud. The application requires a high availability (HA) PostgreSQL database to support business-critical functions. Your company's disaster recovery strategy requires a recovery time objective (RTO) and recovery point objective (RPO) within 30 minutes of failure. You plan to use a Google Cloud managed service. What should you do to maximize uptime for your application?

    A. Deploy Cloud SQL for PostgreSQL in a regional configuration. Create a read replica in a different zone in the same region and a read replica in another region for disaster recovery.
    B. Deploy Cloud SQL for PostgreSQL in a regional configuration with HA enabled. Take periodic backups, and use this backup to restore to a new Cloud SQL for PostgreSQL instance in another region during a disaster recovery event.
    C. Deploy Cloud SQL for PostgreSQL in a regional configuration with HA enabled. Create a cross-region read replica, and promote the read replica as the primary node for disaster recovery.
    D. Migrate the PostgreSQL database to multi-regional Cloud Spanner so that a single region outage will not affect your application. Update the schema to support Cloud Spanner data types, and refactor the application.

  • Question 6:

    During an internal audit, you realized that one of your Cloud SQL for MySQL instances does not have high availability (HA) enabled. You want to follow Google-recommended practices to enable HA on your existing instance. What should you do?

    A. Create a new Cloud SQL for MySQL instance, enable HA, and use the export and import option to migrate your data.
    B. Create a new Cloud SQL for MySQL instance, enable HA, and use Cloud Data Fusion to migrate your data.
    C. Use the gcloud instances patch command to update your existing Cloud SQL for MySQL instance.
    D. Shut down your existing Cloud SQL for MySQL instance, and enable HA.

  • Question 7:

    Your company is evaluating Google Cloud database options for a mission-critical global payments gateway application. The application must be available 24/7 to users worldwide, horizontally scalable, and support open source databases. You need to select an automatically shardable, fully managed database with 99.999% availability and strong transactional consistency. What should you do?

    A. Select Bare Metal Solution for Oracle.
    B. Select Cloud SQL.
    C. Select Bigtable.
    D. Select Cloud Spanner.

  • Question 8:

    You are designing a database architecture for a global application that stores information about public parks worldwide. The application uses the database for read-only purposes, and a centralized batch job updates the database nightly. You want to select an open source, SQL-compliant database. What should you do?

    A. Use Bigtable with multi-region clusters.
    B. Use Memorystore for Redis with multi-zones within a region.
    C. Use Cloud SQL for PostgreSQL with cross-region replicas.
    D. Use Cloud Spanner with multi-region configuration.

  • Question 9:

    Your organization has a security policy to ensure that all Cloud SQL for PostgreSQL databases are secure. You want to protect sensitive data by using a key that meets specific locality or residency requirements. Your organization needs to control the key's lifecycle activities. You need to ensure that data is encrypted at rest and in transit. What should you do?

    A. Create the database with Google-managed encryption keys.
    B. Create the database with customer-managed encryption keys.
    C. Create the database persistent disk with Google-managed encryption keys.
    D. Create the database persistent disk with customer-managed encryption keys.

  • Question 10:

    Your organization has a ticketing system that needs an online marketing analytics and reporting application. You need to select a relational database that can manage hundreds of terabytes of data to support this new application. Which database should you use?

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

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