Professional Cloud Database Engineer — Practice Questions and Mock Exam

The Professional Cloud Database Engineer certification validates your ability to design, create, manage, and troubleshoot Google Cloud databases. This credential is aimed at database professionals who translate business and technical requirements into scalable, resilient, and cost-effective database solutions. The exam covers a broad range of Google Cloud database services including Cloud SQL (MySQL, PostgreSQL, SQL Server), AlloyDB for PostgreSQL, Spanner, Firestore, Bigtable, and Memorystore, as well as migration and multi-database management scenarios.

The exam consists of 50-60 multiple-choice and multiple-select questions to be completed within 2 hours. Questions test your ability to design database solutions, manage multi-database environments, plan and execute migrations, and deploy highly available database architectures on Google Cloud. The exam is available in English and Japanese.

Candidates often underestimate the breadth of Google Cloud database services covered. Key pitfalls include confusing when to use Cloud SQL vs AlloyDB vs Spanner for relational workloads, not understanding the HA and DR tradeoffs between regional and multi-regional deployments, overlooking Database Migration Service capabilities for heterogeneous migrations, and neglecting IAM best practices for database access control. Understanding cost optimization across different database tiers and storage options is also frequently tested.

The exam costs $200 USD (plus applicable taxes) and can be taken online-proctored or at a Pearson VUE testing center. Registration is through the Certmetrics portal. Google recommends 5+ years of overall database and IT experience, including 2+ years of hands-on Google Cloud database experience. The certification is valid for 2 years and can be renewed during the renewal eligibility period.