Databricks · DCMLEA
Validates foundational knowledge of machine learning on the Databricks platform, covering AutoML, Feature Store, ML workflows and experiment tracking with MLflow, model development with Spark ML, and model deployment and serving.
Practice Questions
630
≈ 14 practice exams
Duration
90 minutes
Passing Score
70%
Difficulty
AssociateLast Updated
Feb 2026
Use this DCMLEA practice exam to prepare for Databricks Certified Machine Learning Associate with realistic questions, detailed explanations, and focused study modes. The practice bank includes 630 questions for Databricks DCMLEA, so you can review the exam steadily instead of relying on one long cram session.
As you practice, pay extra attention to patterns in your missed answers. Start with short sessions to identify weak areas, then move into timed quizzes once your accuracy is consistent.
The explanations are especially useful when you want to connect exam wording to the responsibilities and scenarios described in the official certification guidance. Use the free preview first, then unlock the full question bank when you are ready to build a complete study routine.
The Databricks Certified Machine Learning Associate certification validates foundational knowledge and practical ability to perform core machine learning tasks on the Databricks Lakehouse Platform. The exam covers the full ML lifecycle, including exploratory data analysis, feature engineering, model training, hyperparameter tuning, evaluation, and deployment using Databricks-native tooling such as AutoML, the Feature Store, Unity Catalog integration, and Managed MLflow for experiment tracking and model registry. Candidates are expected to demonstrate proficiency with both single-node and distributed machine learning approaches, including Spark ML APIs, Hyperopt with SparkTrials, and Pandas UDFs.
The certification was updated on October 28, 2024, to reflect current platform capabilities including real-time, batch, and streaming inference patterns as well as MLOps best practices such as model metadata tagging. All machine learning code on the exam is in Python; data manipulation code outside ML-specific tasks may appear in SQL. The exam is administered online through Databricks' exam delivery platform and costs $200 USD, with local taxes potentially applicable.
This certification is designed for data scientists, machine learning engineers, and ML-adjacent data engineers who perform machine learning workflows on Databricks and want to validate their skills at an associate level. Candidates are typically early-to-mid career practitioners with approximately 6 or more months of hands-on experience using Databricks for machine learning tasks including model training, tuning, and deployment.
The exam is also well-suited for analytics consultants and data engineers who collaborate closely with ML teams and want to deepen their understanding of the Databricks ML platform. It serves as a prerequisite stepping stone for the Databricks Certified Machine Learning Professional certification.
There are no formal prerequisites required to sit for this exam. However, Databricks recommends at least 6 months of hands-on experience performing machine learning tasks on the Databricks platform as outlined in the official exam guide. Candidates should have practical familiarity with Databricks workspaces, clusters, Repos, and Jobs, as well as the Databricks Runtime for Machine Learning and its bundled libraries.
A foundational understanding of machine learning concepts—including supervised learning, feature engineering, model evaluation metrics, and hyperparameter tuning—is expected. Familiarity with Python and a working knowledge of Apache Spark concepts (DataFrames, distributed computation) are strongly recommended, as Spark ML accounts for the largest share of exam content.
The Databricks Certified Machine Learning Associate exam consists of 48 scored multiple-choice and multiple-response questions to be completed within 90 minutes. The passing score is 70%. The exam may include a small number of unscored items used to gather statistical data for future exam development; these items are not identified on the form, do not count toward the final score, and are accounted for in the total allotted time.
The exam is delivered online through Databricks' exam delivery platform and can be taken remotely. All ML code presented in questions is written in Python; SQL may appear for non-ML data manipulation scenarios. The certification is valid for two years from the date of passing, after which recertification is required to maintain certified status. The exam fee is $200 USD (local taxes may apply).
Holding the Databricks Certified Machine Learning Associate credential signals verified proficiency with the Databricks Lakehouse Platform for ML—a platform widely adopted across enterprises using the Azure Databricks, AWS, and Google Cloud ecosystems. It is recognized by employers hiring for data scientist, ML engineer, and MLOps roles where Databricks is part of the production stack. The certification is particularly valuable at organizations that have standardized on Databricks for unified data and AI workloads, as it demonstrates readiness to contribute to ML pipelines without extensive onboarding.
While Databricks does not publish official salary data tied to this specific credential, practitioners with Databricks ML certifications and associated skills (Spark, MLflow, cloud ML platforms) command salaries broadly in the $110,000–$160,000+ USD range for ML engineer and data scientist roles in the US market, depending on seniority and location. The Associate-level certification serves as a recognized stepping stone to the Databricks Certified Machine Learning Professional exam, which tests advanced topics such as model monitoring, feature engineering at scale, and custom MLflow integrations.
5 sample questions with answers and explanations. The full bank has 630 questions, enough for 14 full-length practice exams.
Preview — answers shown1. A machine learning team evaluates a fraud detection model where correctly identifying all fraud cases is critical, even if it means some false positives. Which evaluation metric should they optimize? (Select one!)
Explanation
Recall measures the proportion of actual positive cases (fraud) that are correctly identified, making it the right metric when minimizing false negatives is critical. High recall ensures maximum fraud case identification even if some legitimate transactions are flagged. Precision minimizes false positives but may miss fraud cases, which is unacceptable for fraud detection. F1 score balances precision and recall, which would compromise fraud detection effectiveness. Accuracy can be misleading with imbalanced datasets where fraud is rare, as a model predicting no fraud could have high accuracy while missing all fraud cases.
2. A machine learning engineer creates a Pipeline containing a StringIndexer, OneHotEncoder, VectorAssembler, and LogisticRegression. After calling pipeline.fit(trainDF), what type of object is returned? (Select one!)
Explanation
Calling fit on a Pipeline returns a PipelineModel, which is the fitted version of the Pipeline. Pipeline itself is an Estimator that implements the fit method. PipelineModel is a Transformer that implements the transform method and contains the fitted stages from the original Pipeline. While PipelineModel is technically a type of Transformer, PipelineModel is the most specific and correct answer. Pipeline would be incorrect because fit produces a new object type. Estimator is incorrect because the fitted result implements transform, not fit.
3. A retail analytics team uses Databricks AutoML for forecasting daily sales across 500 store locations. They configure automl.forecast() with a frequency parameter. Which frequency value should they specify for daily sales predictions? (Select one!)
Explanation
Databricks AutoML forecast function uses pandas frequency strings where D represents daily frequency. Other valid frequencies include W for weekly, M for monthly, Q for quarterly, and Y for yearly. The frequency parameter does not accept full words like Daily or day, nor does it use duration strings like 1D. This frequency parameter determines the time granularity for the forecasting model and must match the temporal resolution of the time_col data.
4. A healthcare analytics team evaluates multiple classification models for disease diagnosis. They use BinaryClassificationEvaluator to compare models. Which two metrics can BinaryClassificationEvaluator compute? (Select two!)
Multiple correct answersExplanation
BinaryClassificationEvaluator in Spark MLlib supports only two metrics: areaUnderROC (area under the ROC curve) and areaUnderPR (area under the precision-recall curve). These threshold-independent metrics evaluate binary classifier performance across all classification thresholds. The f1Score, accuracy, and precision metrics require MulticlassClassificationEvaluator, not BinaryClassificationEvaluator, even though binary classification is a special case of multiclass classification.
5. An ML engineer filters a Spark DataFrame to remove invalid transactions where the amount column contains negative values. Which code correctly filters the DataFrame? (Select one!)
Explanation
The filter() method with col() function is the correct Spark DataFrame API syntax for filtering rows based on column conditions. Spark DataFrames require explicit use of col() or column string references in filter expressions. The bracket indexing syntax df[condition] is valid for pandas DataFrames but not Spark DataFrames. The loc accessor is specific to pandas DataFrames for label-based indexing. The query() method is also pandas-specific and not available in Spark DataFrame API.
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