Free Practice Google Professional-Data-Engineer Exam Questions 2025

Your company's customer_order table in BigOuery stores the order history for 10 million customers, with a

table size of 10 PB. You need to create a dashboard for the support team to view the order history. The

dashboard has two filters, countryname and username. Both are string data types in the BigQuery table. When

a filter is applied, the dashboard fetches the order history from the table and displays the query results.

However, the dashboard is slow to show the results when applying the filters to the following query:

Your startup has a web application that currently serves customers out of a single region in Asia. You are

targeting funding that will allow your startup lo serve customers globally. Your current goal is to optimize for

cost, and your post-funding goat is to optimize for global presence and performance. You must use a native

JDBC driver. What should you do?

In order to securely transfer web traffic data from your computer's web browser to the Cloud Dataproc cluster you should use a(n) _____.

You are developing a data pipeline that will run several data transformation programs on Compute Engine virtual machines. You do not want to use your credentials for authenticating and authorizing these programs. You want to follow Google Cloud recommended practices, how would you authenticate and authorize the data transformation programs?

Your company is currently setting up data pipelines for their campaign. For all the Google Cloud Pub/Sub streaming data, one of the important business requirements is to be able to periodically identify the inputs and their timings during their campaign. Engineers have decided to use windowing and transformation in Google Cloud Dataflow for this purpose. However, when testing this feature, they find that the Cloud Dataflow job fails for the all streaming insert. What is the most likely cause of this problem?