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Databricks Certified Data Engineer Professional

Verified practice questions with detailed answers, clear explanations, and community discussion.

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Question 1 of 339

An upstream system has been configured to pass the date for a given batch of data to the Databricks Jobs API as a parameter. The notebook to be scheduled will use this parameter to load data with the following code: df = spark.read.format("parquet").load(f"/mnt/source/(date)")
Which code block should be used to create the date Python variable used in the above code block?
Answer choices
Show answer

Correct answer: D

To create the date variable for use in the notebook, the code block should interact with the Databricks Jobs API to retrieve the parameter that has been passed by the upstream system. The appropriate method for this purpose is to use dbutils.notebooks.getParam, which is designed to retrieve parameters passed to the notebook from external sources like the Databricks Jobs API. This ensures that the value of 'date' is accurately obtained from the API, aligning with the requirements of the given scenario.

Community votes

32 votes

EMost voted

97%

DSuggested

3%

Question 2 of 339

The Databricks workspace administrator has configured interactive clusters for each of the data engineering groups. To control costs, clusters are set to terminate after 30 minutes of inactivity. Each user should be able to execute workloads against their assigned clusters at any time of the day.

Assuming users have been added to a workspace but not granted any permissions, which of the following describes the minimal permissions a user would need to start and attach to an already configured cluster.

Answer choices
Show answer

Correct answer: D

The minimal permissions a user needs to start and attach to an already configured cluster in Databricks are 'Can Restart' privileges on the required cluster. 'Can Restart' allows users to start a terminated cluster without unnecessary additional permissions.

Community votes

49 votes

DSuggested

78%

C

18%

A

4%

Question 3 of 339

When scheduling Structured Streaming jobs for production, which configuration automatically recovers from query failures and keeps costs low?

Answer choices
Show answer

Correct answer: D

To schedule Structured Streaming jobs for production with an automatic recovery from query failures while keeping costs low, you should use a new job cluster to ensure an isolated and streamlined environment, set retries to unlimited to handle and recover from any failures automatically, and limit maximum concurrent runs to 1 to avoid resource contention and ensure only one instance of the query runs at a time. This configuration efficiently manages resources and ensures the job's reliability and cost-effectiveness.

Community votes

11 votes

DSuggested

100%

Question 4 of 339

The data engineering team has configured a Databricks SQL query and alert to monitor the values in a Delta Lake table. The recent_sensor_recordings table contains an identifying sensor_id alongside the timestamp and temperature for the most recent 5 minutes of recordings.

The below query is used to create the alert:

Exam Certified Data Engineer Professional: Question 4 - Image 1

The query is set to refresh each minute and always completes in less than 10 seconds. The alert is set to trigger when mean (temperature) > 120. Notifications are triggered to be sent at most every 1 minute.If this alert raises notifications for 3 consecutive minutes and then stops, which statement must be true?

Answer choices
Show answer

Correct answer: E

The alert is set to trigger when the mean temperature exceeds 120. Given that notifications were raised for three consecutive minutes and then stopped, it must be true that the average temperature recordings for at least one sensor exceeded 120 on three consecutive executions of the query.

Community votes

7 votes

ESuggested

100%

Question 5 of 339

A junior developer complains that the code in their notebook isn't producing the correct results in the development environment. A shared screenshot reveals that while they're using a notebook versioned with Databricks Repos, they're using a personal branch that contains old logic. The desired branch named dev-2.3.9 is not available from the branch selection dropdown.

Which approach will allow this developer to review the current logic for this notebook?

Answer choices
Show answer

Correct answer: B

The correct approach is to use Repos to pull changes from the remote Git repository and select the dev-2.3.9 branch. This will allow the developer to access the most recent and desired logic for the notebook. Pulling changes from the remote repository ensures that the latest updates are incorporated and selecting the specific branch will provide the correct version of the code.

Community votes

9 votes

BSuggested

100%

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May 11, 2026
As this was my first certification exam, I was understandably nervous about what to expect. These study materials made the preparation process much easier, and many of the questions closely reflected those on the actual exam.
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Used this along with Microsoft Learn and the combo worked really well. The practice questions made the stuff I'd read actually stick. Passed first attempt, no complaints from me.
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The content is accurate and clearly presented, and it's more affordable than competitors. The team has been incredibly responsive whenever I've had an issue, and they've been open to small changes that improve the platform.
Gabriele Ghesla
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May 11, 2026
As this was my first certification exam, I was understandably nervous about what to expect. These study materials made the preparation process much easier, and many of the questions closely reflected those on the actual exam.
Charles Sirois
Canada
May 5, 2026
Wasted about a month going through the free dump sites scattered all over reddit, half the answers were wrong and the other half were for a version of the exam that doesn't even exist anymore. Eventually gave in and paid the small fee here, and the difference was night and day.
Lance Chambers
United States
Apr 11, 2026
Honestly, I had already gone through the official documentation quite thoroughly, but still didn't feel fully confident going in. This helped things finally click for me. I realized I knew the material, but just hadn't connected all the pieces yet.
Alisha Kelly
Italy
Apr 9, 2026
Used this along with Microsoft Learn and the combo worked really well. The practice questions made the stuff I'd read actually stick. Passed first attempt, no complaints from me.
Casper Claassen
Netherlands
Jun 2, 2025
The content is accurate and clearly presented, and it's more affordable than competitors. The team has been incredibly responsive whenever I've had an issue, and they've been open to small changes that improve the platform.
Gabriele Ghesla
Italy
Apr 13, 2026
I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
Morgan Farmer
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I had a smooth experience from start to finish. Access was available right away, no technical issues, which made it easy to get started. The content felt relevant and aligned well with what I was looking for.
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Apr 11, 2026
Does what it says it does. Content felt solid, nothing confusing to navigate and I didn't run into any weird issues. I been putting off scheduling the exam for a while and going through this gave me enough confidence to finally book it and pass.
Nancy Mcbride
United States
May 8, 2026
A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.
Neil Savage
United States
Apr 13, 2026
I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
Morgan Farmer
United Kingdom
May 4, 2026
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Remi Nuyts
United States
Apr 9, 2026
I had a smooth experience from start to finish. Access was available right away, no technical issues, which made it easy to get started. The content felt relevant and aligned well with what I was looking for.
Archie Hopkins
United States
Apr 11, 2026
Does what it says it does. Content felt solid, nothing confusing to navigate and I didn't run into any weird issues. I been putting off scheduling the exam for a while and going through this gave me enough confidence to finally book it and pass.
Nancy Mcbride
United States
May 8, 2026
A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.
Neil Savage
United States

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