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Multiple Choice Flashcards

Practice multiple choice certification questions for Databricks Certified Machine Learning Associate and review the explanation after each answer.

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Review the keyed rationale after answering so the correct Databricks service choice and each distractor stay connected.

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Flashcard Practice Databricks Certified Machine Learning Associate Multiple Choice

A manufacturing company cross-validates a failure model using sensor windows from the same machine. Random folds place windows from one machine in both training and validation, causing optimistic metrics. What should the team redesign?

Choose the Best Answer

Use folds that keep related machine windows together. Fit the model on validation rows first so the groups are balanced. Use fewer features because leakage is caused only by wide feature vectors. Increase max_evals because more tuning trials remove group leakage.

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