Preparing Practice Exam…
Please wait a moment while the system generates the exam questions, answers, and study session.
Please wait a moment while the system generates the exam questions, answers, and study session.
Databricks Certified Machine Learning Professional · Databricks
Select one answer.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
- VectorAssembler merges multiple input columns (numeric, vector, boolean) into a single feature vector column. Most SparkML algorithms require features in a single vector column, making VectorAssembler an essential preprocessing step.