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Databricks Certified Machine Learning Professional

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

  • 216

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Question 1 of 216

Which of the following describes concept drift?

Answer choices
Show answer

Correct answer: C

Concept drift refers to a change in the relationship between input variables and target variables over time. This change can cause the model's predictions to become less accurate as the original relationship the model learned is no longer valid. It is not merely a shift in the distribution of input or target variables but specifically in how they relate to each other.

Community votes

12 votes

CSuggested

100%

Question 2 of 216

A machine learning engineer is monitoring categorical input variables for a production machine learning application. The engineer believes that missing values are becoming more prevalent in more recent data for a particular value in one of the categorical input variables.

Which of the following tools can the machine learning engineer use to assess their theory?

Answer choices
Show answer

Correct answer: C

To assess if there is a statistically significant association between the time period and the presence of missing values in a particular value of a categorical input variable, the appropriate tool would be the Two-way Chi-squared Test. This test is designed to determine if there is an association between two categorical variables – in this case, the time period (old vs. new data) and the presence or absence of values within a specific category. The one-way Chi-squared test is generally used for goodness-of-fit tests and is not suitable for assessing associations between two categorical variables.

Community votes

4 votes

BMost voted

75%

CSuggested

25%

Question 3 of 216

A data scientist is using MLflow to track their machine learning experiment. As a part of each MLflow run, they are performing hyperparameter tuning. The data scientist would like to have one parent run for the tuning process with a child run for each unique combination of hyperparameter values.

They are using the following code block:Exam Certified Machine Learning Professional: Question 3 - Image 1

The code block is not nesting the runs in MLflow as they expected.

Which of the following changes does the data scientist need to make to the above code block so that it successfully nests the child runs under the parent run in MLflow?

Answer choices
Show answer

Correct answer: A

In order to nest the child runs under the parent run, the child run blocks need to be indented within the parent run block. This way, the child runs are executed within the context of the parent run, allowing MLflow to correctly nest the runs.

Community votes

4 votes

ASuggested

100%

Question 4 of 216

A machine learning engineer wants to log feature importance data from a CSV file at path importance_path with an MLflow run for model model.

Which of the following code blocks will accomplish this task inside of an existing MLflow run block?

Answer choices
Show answer

Correct answer: D

A machine learning engineer who wants to log feature importance data from a CSV file within an MLflow run should use the function mlflow.log_artifact. This function is designed to log files or directories as artifacts of a run, allowing for easy tracking and analysis along with other relevant model information. Therefore, the correct code block to use is mlflow.log_artifact(importance_path, 'feature-importance.csv').

Community votes

14 votes

DSuggested

86%

C

14%

Question 5 of 216

Which of the following is a simple, low-cost method of monitoring numeric feature drift?

Answer choices
Show answer

Correct answer: B

A simple, low-cost method of monitoring numeric feature drift is to track summary statistics trends. This involves monitoring basic statistical metrics such as mean, median, standard deviation, and other relevant summary statistics over time to detect any shifts in the distribution of the feature values. This approach is straightforward and does not require complex statistical tests, making it both simple and cost-effective.

Community votes

9 votes

BSuggested

56%

E

44%

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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
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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
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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.
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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
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
United Kingdom
May 4, 2026
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Remi Nuyts
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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
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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