Free Google Professional-Data-Engineer Exam Questions

Become Google Certified with updated Professional-Data-Engineer exam questions and correct answers

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Total 472 Questions | Updated On: Oct 27, 2026

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Question 1

You are building a model to make clothing recommendations. You know a user’s fashion preference is likely to change over time, so you build a data pipeline to stream new data back to the model as it becomes available. How should you use this data to train the model?

A : ntinuously retrain the model on just the new data.

B : ntinuously retrain the model on a combination of existing data and the new data.

C : ain on the existing data while using the new data as your test set.

D : ain on the new data while using the existing data as your test set.

Answer: C

Question 2

A manufacturer of delivery drones is implementing a new data analysis pipeline to detect part failures before they occur. The drones have multiple sensors that send performance and environment data to an analytics pipeline. Currently, data is sent to a REST API endpoint. The REST API endpoint that receives data cannot always keep up with the pace data is arriving. When that happens, data is lost. Machine learning engineers have asked you to change the ingestion process to reduce this data loss. What would you do?

A : Write data to a Cloud Pub/Sub topic instead of a REST API endpoint and have the ingestion application read from the topic.

B : Write data to a Cloud Storage bucket instead of a REST API endpoint and have the ingestion application read from the bucket.

C : Write data to a Cloud SQL Postgres database endpoint and have the ingestion application query the database.

D : Create a Hadoop cluster in Compute Engine using managed instance groups and write data to an Hbase database and have the application query the database.

Answer: A

Question 3

You create a new report for your large team in Google Data Studio 360. The report uses Google BigQuery as

its data source. It is company policy to ensure employees can view only the data associated with their region,

so you create and populate a table for each region. You need to enforce the regional access policy to the data.

Which two actions should you take? (Choose two.)

A : ure all the tables are included in global dataset.

B : ure each table is included in a dataset for a region.

C : just the settings for each table to allow a related region-based security group view access.

D : just the settings for each view to allow a related region-based security group view access.

E : just the settings for each dataset to allow a related region-based security group view access.

Answer: A,D

Question 4

Your weather app queries a database every 15 minutes to get the current temperature. The frontend is powered by Google App Engine and server millions of users. How should you design the frontend to respond to a database failure?

A : ue a command to restart the database servers.

B : try the query with exponential backoff, up to a cap of 15 minutes.

C : try the query every second until it comes back online to minimize staleness of data.

D : duce the query frequency to once every hour until the database comes back online.

Answer: B

Question 5

You have a data pipeline that writes data to Cloud Bigtable using well-designed row keys. You want to monitor your pipeline to determine when to increase the size of you Cloud Bigtable cluster. Which two actions can you take to accomplish this? Choose 2 answers.

A : view Key Visualizer metrics. Increase the size of the Cloud Bigtable cluster when the Read pressure index is above 100

B : view Key Visualizer metrics. Increase the size of the Cloud Bigtable cluster when the Write pressure index is above 100.

C : nitor the latency of write operations. Increase the size of the Cloud Bigtable cluster when there is a sustained increase in write latency.

D : nitor storage utilization. Increase the size of the Cloud Bigtable cluster when utilization increases above 70% of max capacity

E : nitor latency of read operations. Increase the size of the Cloud Bigtable cluster of read operations take longer than 100 ms

Answer: A,C

Page: 1 / 95

Total 472 Questions | Updated On: Oct 27, 2026

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