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Professional-Cloud-Database-Engineer Exam Questions & Answers

Professional Cloud Database Engineer  •  Google

141 Questions 240 min Updated Sep 2026 99% Pass Rate
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Sample Professional-Cloud-Database-Engineer Questions

Practice with real exam-style questions, each with the verified correct answer and explanation.

Q1 MultipleChoice

Your company is developing a global ecommerce website on Google Cloud. Your development team is working on a shopping cart service that is durable and elastically scalable with live traffic. Business disruptions from unplanned downtime are expected to be less than 5 minutes per month. In addition, the application needs to have very low latency writes. You need a data storage solution that has high write throughput and provides 99.99% uptime. What should you do?

Correct Answer: B
Explanation:

google Cloud Spanner is a highly scalable, reliable, and fully managed relational database service that runs on Google's infrastructure. It's designed to handle large amounts of data and provide high availability, even in the face of failures. Spanner can be used to store and manage data for a variety of applications, including e-commerce websites. Spanner is a good choice for this scenario because it can handle high write throughput and provides 99.99% uptime. It's also a good fit for applications that need to be highly available, even in the face of failures.

Q2 MultipleChoice

You are configuring a new application that has access to an existing Cloud Spanner database. The new application reads from this database to gather statistics for a dashboard. You want to follow Google-recommended practices when granting Identity and Access Management (IAM) permissions. What should you do?

Correct Answer: C
Q3 MultipleChoice

You are designing a database strategy for a new web application. You plan to start with a small pilot in one country and eventually expand to millions of users in a global audience. You need to ensure that the application can run 24/7 with minimal downtime for maintenance. What should you do?

Q4 MultipleChoice

You are configuring the networking of a Cloud SQL instance. The only application that connects to this database resides on a Compute Engine VM in the same project as the Cloud SQL instance. The VM and the Cloud SQL instance both use the same VPC network, and both have an external (public) IP address and an internal (private) IP address. You want to improve network security. What should you do?

Correct Answer: D
Explanation:

It is always more secure to use an internal IP, so removing them doesn't make sense. Eliminate A. You can use Private Google Access when VM instances only have internal IP addresses, so disabling the internal IPs and use Private Google Access doesn't make sense. Eliminate B. Specifying an authorized network when they're on the same subnet doesn't make sense. Eliminate C. A way to improve network security would be to disable external IPs since they're not needed.

Q5 MultipleChoice

You are troubleshooting a connection issue with a newly deployed Cloud SQL instance on Google Cloud. While investigating the Cloud SQL Proxy logs, you see the message Error 403: Access Not Configured. What should you do?

Correct Answer: C
Explanation:

https://cloud.google.com/sql/docs/mysql/connect-auth-proxy#troubleshooting C because in docs it says 'Make sure to enable the Cloud SQL Admin API. If it is not, you see output like Error 403: Access Not Configured in your Cloud SQL

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Frequently Asked Questions

Google recommends having 3+ years of experience designing and managing databases on Google Cloud Platform. You should be familiar with GCP services like Cloud SQL, Firestore, Bigtable, and Spanner, as well as general database design principles and best practices.

The exam is 2 hours long and typically contains around 50-60 multiple-choice and multiple-select questions. You need to score at least 70% to pass the certification.

The exam covers designing scalable database solutions on GCP, planning database migrations, implementing database security measures, optimizing database performance, and managing backups and disaster recovery. Key areas include Cloud SQL, Firestore, Bigtable, Spanner, and data warehousing solutions.

The exam costs $200 USD. You can take it online with remote proctoring or at an authorized testing center depending on your location and preference.

The certification is valid for 3 years from the date you pass the exam. To maintain your certification status, you must retake and pass the exam again before the 3-year period expires.
Exam Details
  • Exam CodeProfessional-Cloud-Database-Engineer
  • VendorGoogle
  • Total Questions141
  • Duration240 min
  • LanguageEnglish
  • Last UpdatedSep 4, 2026
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