Free Practice Questions for Scikit-learn Associate Practitioner Certification Certification

    🔄 Last checked for updates July 19th, 2026

    Study with 400 exam-style practice questions designed to help you prepare for the Scikit-learn Associate Practitioner Certification.

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    Exam Details

    Key information about Scikit-learn Associate Practitioner Certification

    Official study guide

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    Question formats CertSafari offers
    • Multiple choice
    target audience:

    Junior data scientists

    Exam Topics & Skills Assessed

    Skills measured (from the official study guide)

    Domain 1: Machine Learning Concepts

    Subdomain 1.1: Types of ML: supervised, unsupervised, semi-supervised

    Types of ML: supervised, unsupervised, semi-supervised

    Subdomain 1.2: Model families: tree-based, linear, ensemble, neighbors

    Model families: tree-based, linear, ensemble, neighbors

    Subdomain 1.3: Key concepts: features, labels, training/test sets

    Key concepts: features, labels, training/test sets

    Subdomain 1.4: Overfitting and underfitting

    Overfitting and underfitting

    Subdomain 1.5: Bias/variance trade-off

    Bias/variance trade-off

    Domain 2: Model Building and Evaluation

    Subdomain 2.1: Splitting with train_test_split

    Splitting with train_test_split

    Subdomain 2.2: Training with fit()

    Training with fit()

    Subdomain 2.3: Prediction with predict()

    Prediction with predict()

    Subdomain 2.4: Metrics: accuracy, precision, recall, F1, MSE, R²

    Metrics: accuracy, precision, recall, F1, MSE, R²

    Subdomain 2.5: Baseline comparison

    Baseline comparison

    Domain 3: Interpretation and Communication

    Subdomain 3.1: Matplotlib and seaborn visualization

    Matplotlib and seaborn visualization

    Subdomain 3.2: Confusion matrix and ROC curve reading

    Confusion matrix and ROC curve reading

    Subdomain 3.3: Non-technical stakeholder communication

    Non-technical stakeholder communication

    Subdomain 3.4: Uncertainty reporting

    Uncertainty reporting

    Domain 4: Data Preprocessing

    Subdomain 4.1: Loading parquet datasets

    Loading parquet datasets

    Subdomain 4.2: Scatterplots and boxplots for inspection

    Scatterplots and boxplots for inspection

    Subdomain 4.3: Identifying encoding issues

    Identifying encoding issues

    Subdomain 4.4: Imputation with SimpleImputer

    Imputation with SimpleImputer

    Subdomain 4.5: Scaling: StandardScaler, MinMaxScaler

    Scaling: StandardScaler, MinMaxScaler

    Subdomain 4.6: Encoding: OrdinalEncoder, OneHotEncoder

    Encoding: OrdinalEncoder, OneHotEncoder

    Subdomain 4.7: ColumnTransformer for combining steps

    ColumnTransformer for combining steps

    Domain 5: Model Selection and Validation

    Subdomain 5.1: Cross-validation: KFold, ShuffleSplit

    Cross-validation: KFold, ShuffleSplit

    Subdomain 5.2: Learning and validation curves

    Learning and validation curves

    Subdomain 5.3: Hyperparameter tuning: GridSearchCV, RandomSearchCV

    Hyperparameter tuning: GridSearchCV, RandomSearchCV

    Subdomain 5.4: Coefficient stability across splits

    Coefficient stability across splits

    Techniques & products

    scikit-learn
    Pandas
    NumPy
    matplotlib
    seaborn
    SimpleImputer
    StandardScaler
    MinMaxScaler
    OrdinalEncoder
    OneHotEncoder
    ColumnTransformer
    KFold
    ShuffleSplit
    GridSearchCV
    RandomSearchCV
    parquet datasets
    Supervised learning
    Unsupervised learning
    Semi-supervised learning
    Tree-based models
    Linear models
    Ensemble models
    Neighbors models
    features
    labels
    training sets
    test sets
    Model overfitting
    Model underfitting
    Bias/variance trade-off
    train_test_split
    fit() method
    predict() method
    accuracy
    precision
    recall
    F1 score
    confusion matrix
    mean squared error
    R-squared
    Dummy models
    Plotting techniques
    Communicating model outputs
    Interpreting performance metrics
    Identifying wrongly encoded columns
    Handling missing values
    Feature scaling
    Categorical data encoding
    Combining preprocessing steps
    Cross-validation
    Learning curves
    Validation curves
    Hyperparameter tuning
    Coefficient stability analysis

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