Free Google Professional-Data-Engineer Practice Exam Questions and Answers 2026

You have some data, which is shown in the graphic below. The two dimensions are X and Y, and the shade of each dot represents what class it is. You want to classify this data accurately using a linear algorithm

A data pipeline uses Cloud Pub/Sub for ingesting data. The data is stored in topics and a Dataflow workflow reads from a subscription to that topic, processes the data, and writes output to BigQuery. What is the recommended way to authenticate when reading data from Cloud Pub/Sub?

When using Cloud Data Fusion you receive an error that a Dataproc operation failed and the user is not authorized to act as a service account. What would you do to correct this problem?

You are consulting to a company developing an IoT application that analyzes data from sensors deployed on drones. The application depends on a database that can write large volumes of data at low latency. The company has used Hadoop HBase in the past but wants to migrate to a managed database service. What service would you recommend?

Which of these statements about exporting data from BigQuery is false?