Free PCDE practice test — 1,446+ PCDE practice questions with detailed explanations across all 7 official PCDE exam domains. Every set is scored and drawn from the live question bank — so you practise exactly what the exam tests, not outdated dumps.
Courseiva includes 1,446+ Google Professional Cloud Database Engineer practice questions across the official exam domains.
Feature
Courseiva
This free PCDE practice test mirrors the structure and difficulty of the real Google Professional Cloud Database Engineer exam. Every question is written against the official 2026 exam blueprint published by Google Cloud, ensuring you practise exactly what the exam tests — not last year's objectives.
The PCDE blueprint is divided into 7weighted domains. Questions on this page are distributed proportionally across each domain, so the mix you see here reflects the same weighting you'll face on exam day. High-weight domains like Plan and manage database infrastructure and Design innovative, scalable, and highly available cloud database solutions contribute the most questions, meaning focused practice on these areas gives you the highest return on study time.
PCDE Exam Blueprint — 7 Domains
Design innovative, scalable, and highly available cloud database solutions
Manage a solution that can span multiple database technologies
Migrate data solutions
Deploy scalable and highly available databases in Google Cloud
Plan and manage database infrastructure
Design and implement database schemas
Monitor and optimize database performance
83 numbered sets, 7 domain question banks, and targeted sessions — every page is a unique set of questions.
150 questions
All 150 questions →175 questions
All 175 questions →75 questions
All 75 questions →Choose all correct answers
Each chapter page covers one topic in depth — theory, key concepts, and focused practice questions. Use these to close knowledge gaps before returning to full practice tests.
Getting the most from practice questions requires more than just clicking through answers. Here is the study method used by candidates who pass PCDE on their first attempt:
Answer before revealing
Read each PCDE question fully, eliminate obviously wrong choices, then commit to an answer before clicking to reveal. This active recall process is what builds lasting knowledge.
Read every explanation
Even when you answer correctly, read the full explanation. Knowing WHY the right answer is correct — and why the distractors are wrong — is what separates a 750 score from a 900 score.
Track weak domains
Note which PCDE domains you get wrong most often. Then do a targeted 20-30 question session focused only on that domain until your accuracy improves.
Simulate exam pacing
The real PCDE gives you roughly 2 minutes per question. Use the 60 or 120-question sessions to practise hitting that pace comfortably.
Most candidates who pass PCDE on their first attempt report doing between 400 and 800 practice questions over 4–8 weeks of preparation. With 1,446+ questions in the Courseiva bank, you have more than enough material to build that repetition without seeing the same question twice.
Answer each question to reveal the full explanation and correct answer. This starter set is drawn from all 7 exam domains in blueprint proportion. Use the session selector to start a longer focused practice run.
A company needs to store petabytes of time-series IoT sensor data and query it with single-digit millisecond latency at millions of reads per second. The data has a simple key-value structure with timestamps. Which Google Cloud database is MOST appropriate?
Select an answer to reveal the explanation
You are designing a schema for Cloud Spanner and need to avoid write hotspots. Which primary key design strategy is recommended?
Select an answer to reveal the explanation
A company is migrating an on-premise PostgreSQL database to Cloud SQL. The current database has a connection pool with 200 connections and uses 64 GB RAM. According to Cloud SQL best practices, what is the maximum recommended max_connections setting?
Select an answer to reveal the explanation
Your team manages a Cloud SQL for MySQL instance used by a critical application. You need to ensure the instance is recoverable to any point within the last 4 days, with a Recovery Point Objective (RPO) of under 5 minutes. What configuration steps are required?
Select an answer to reveal the explanation
You are responsible for a Cloud Spanner instance that serves a global user base. A new feature requires adding an index on a column of an existing table that contains millions of rows. The table is actively used by production traffic. What is the recommended approach to add the index with minimal impact?
Select an answer to reveal the explanation
A company is migrating their on-premises MySQL database to Cloud SQL using Database Migration Service (DMS). The source database is MySQL 5.7, and the target is a Cloud SQL MySQL 8.0 instance. The migration job is set to continuous, but after the full dump phase, the CDC phase keeps failing with the error 'binary log not found'. What is the most likely cause?
Select an answer to reveal the explanation
An organization is planning a database migration from Oracle to PostgreSQL on Cloud SQL. They have a large number of stored procedures that use Oracle-specific PL/SQL features. Which tool should they use to automate the schema conversion, including conversion of PL/SQL to PL/pgSQL?
Select an answer to reveal the explanation
A company needs to store petabytes of time-series IoT sensor data and query it with single-digit millisecond latency at millions of reads per second. The data has a simple key-value structure with timestamps. Which Google Cloud database is MOST appropriate?
Select an answer to reveal the explanation
A company runs a Cloud SQL for PostgreSQL instance with a cross-region read replica in a different region for disaster recovery. The primary region experiences a complete outage. What is the expected RPO and RTO for promoting the read replica to become the new primary?
Select an answer to reveal the explanation
A company runs a production Cloud SQL for PostgreSQL instance used by a web application. The instance experiences intermittent latency spikes during peak hours. You need to diagnose the cause without downtime. Which tool should you use first?
Select an answer to reveal the explanation
A company is migrating an on-premises Oracle database to Cloud SQL for PostgreSQL. The database is 2 TB in size and the network bandwidth to Google Cloud is limited to 500 Mbps. The migration window is 48 hours. Which migration strategy should the Database Engineer recommend?
Select an answer to reveal the explanation
A financial services company uses Cloud Spanner for transaction processing. They need to ensure zero downtime during a schema change that adds a new column with a default value to a large table. Which approach should the Database Engineer take?
Select an answer to reveal the explanation
A company runs a BigQuery data warehouse. They notice that query performance has degraded over time. The data is loaded daily from Cloud Storage using batch loads. Which action is most likely to improve query performance?
Select an answer to reveal the explanation
A company is designing a database schema for a global e-commerce platform. Orders are created with high frequency, and order status updates occur frequently. The team needs to choose a primary key strategy for the orders table in Spanner. Which approach minimizes hot-spotting?
Select an answer to reveal the explanation
A team is migrating an on-premises PostgreSQL database to Cloud SQL for PostgreSQL. The existing schema uses a large number of foreign key constraints and triggers for data validation. The team wants to minimize migration effort and maintain data integrity. Which schema design approach is most appropriate for Cloud SQL?
Select an answer to reveal the explanation
A team is designing a schema for a time-series database in Bigtable to store IoT sensor readings. Each sensor sends a reading every minute. The team needs to create a row key that supports efficient queries for a specific sensor's readings over a time range. Which row key design is most appropriate?
Select an answer to reveal the explanation
You are managing a Cloud SQL for PostgreSQL instance that is experiencing high CPU usage and slow query performance. You notice that the database has a high number of idle-in-transaction connections. Which immediate action should you take to reduce CPU load without disrupting active transactions?
Select an answer to reveal the explanation
A team is deploying a new application on Google Kubernetes Engine (GKE) that uses Cloud Spanner. They want to minimize latency for read operations. Which Spanner configuration should they use?
Select an answer to reveal the explanation
Answer all 18 questions to see your domain score breakdown
A structured study plan dramatically increases your chances of passing PCDE on the first attempt. The most effective approach combines reading the official Google Cloud documentation or a study guide, watching video explanations for difficult concepts, and then reinforcing everything with daily practice questions.
We recommend the following weekly structure for PCDE preparation:
Cover each PCDE domain systematically. Read the exam objectives, watch explanatory content, and do 10–20 practice questions per domain to test understanding as you go.
Run full 50–60 question mixed sessions daily. Review every wrong answer in detail. Identify which domains are consistently scoring below 70% and revisit those study materials.
Do 100–120 question timed sessions to simulate real exam conditions. Aim for consistent scores above 80% before booking your exam date. A score above 80% in practice typically translates to a passing PCDE score.
On exam day, the PCDE tests your ability to apply knowledge to realistic scenarios — not just recall definitions. This is why reading explanations and understanding the reasoning behind every answer matters more than simply grinding question volume. Use the high-count sessions (100, 120) in the final weeks as your confidence benchmark.
Questions
60
On the real exam
Time limit
120 min
2 min per question
Passing score
720/1000
Scaled scoring
The PCDE exam uses a scaled scoring system — your raw score of correct answers is converted to a score out of 1000. A passing score of 720/1000 does not mean you need 72% of questions correct; the conversion accounts for question difficulty. Consistently scoring above 75–80% on practice tests puts you in a strong position to achieve 720/1000 on the real exam.
Scenario-based questions covering exam objectives with detailed answer explanations.
Yes. Courseiva provides free Google Professional Cloud Database Engineer practice questions with explanations across the official exam domains. Start with a quick practice test, then continue with topic-based practice, mock exams, missed-question review, bookmarked questions, weak-topic recommendations, and readiness tracking. No account required. Create a free account to unlock per-domain analytics and progress tracking across every certification on the platform. Courseiva is free forever, supported by advertising.
Every question is written against the official PCDE exam blueprint published by Google Cloud. Our questions follow the same wording style, scenario complexity, and answer structure as the actual exam. They are original questions — not brain dumps — so you learn the underlying concepts and reasoning, not just memorised answers. Candidates who study with brain dumps often pass but have no transferable knowledge; Courseiva questions make you genuinely competent.
Most candidates who pass PCDE on their first attempt do 30–60 questions per day. Use the Quick 10 session for daily warm-ups when you are short on time. On study days, run a 50 or 60-question session to build stamina. Reserve 100 and 120-question sessions for the final two weeks when you want to simulate real exam conditions and benchmark your readiness.
The PCDE covers 7 domains: Design innovative, scalable, and highly available cloud database solutions (32%), Manage a solution that can span multiple database technologies (25%), Migrate data solutions (23%), Deploy scalable and highly available databases in Google Cloud (20%), Plan and manage database infrastructure (49%), Design and implement database schemas (31%), Monitor and optimize database performance (20%). Each domain carries a different weight, so allocate your study time accordingly. The highest-weighted domains — Plan and manage database infrastructure and Design innovative, scalable, and highly available cloud database solutions — should receive the most attention.
Exam dumps are memorised question-and-answer lists taken from actual exam papers, often obtained illegally and shared without Google Cloud's authorisation. Using them violates your NDA and Google Cloud's certification agreement, and can result in certification revocation. Courseiva questions are 100% original — written by certified engineers to test the same knowledge areas using new scenarios and wording. You learn the material, not just the answers.
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