PCDEPractice Exam & Study Guide
50
Exam Questions
120
Minutes
70%
Passing Score
131+
Practice Questions
The Professional Cloud Database Engineer exam validates the ability to design, migrate, and manage scalable, highly available database solutions on Google Cloud. It tests a candidate's expertise in choosing the right database engine based on workload requirements (SQL vs NoSQL), implementing disaster recovery, and optimizing performance across various managed services. This certification is ideal for database administrators, data architects, and cloud engineers who specialize in data persistence layers. Prerequisites include a strong understanding of relational and non-relational database concepts and hands-on experience with Google Cloud's data offerings.
12 questions to assess your readiness. Get a personalized study plan in 5 minutes.
Start Free DiagnosticNo credit card required
45 practice questions available
30 practice questions available
23 practice questions available
33 practice questions available
Master the decision matrix for choosing between Cloud Spanner, Cloud SQL, AlloyDB, Firestore, and Bigtable.
Deep dive into Cloud Spanner's architecture, specifically interleaved tables and primary key selection to avoid hotspots.
Study the Database Migration Service (DMS) workflows for migrating from MySQL, PostgreSQL, and SQL Server.
Understand the differences between regional and multi-regional configurations for high availability and disaster recovery.
Practice configuring read replicas and failover mechanisms in Cloud SQL.
Learn the consistency models (Strong vs Eventual) across different GCP database products.
Study Bigtable schema design, focusing on row key design to optimize read/write performance.
Review the integration of databases with other GCP services like Cloud Functions and Pub/Sub for event-driven architectures.
Understand the operational aspects of AlloyDB, including its columnar engine and performance optimizations.
Review backup and restore strategies, including point-in-time recovery (PITR) for SQL databases.
Carefully read the scenario to identify if the requirement is for global scalability (Spanner) or regional consistency (Cloud SQL).
Eliminate options that suggest manual management of database instances when a managed service is available.
Pay close attention to keywords like 'lowest latency', 'strong consistency', and 'minimal operational overhead'.
Manage your time strictly; if a complex architectural question takes too long, flag it and move on.
Ensure you understand the specific constraints of the 'most cost-effective' or 'fastest' implementation requirements.
131+ practice questions, 3 full mock exams, AI-powered study plan.