Question 21
Domain 1: Databricks Machine LearningWhich Unity Catalog capability is especially valuable for shared feature engineering?
Correct answer: A
Explanation
Unity Catalog is valuable because it provides a governed, shared location for assets, and the exam emphasizes its use for feature engineering through “feature store tables at the account level in Unity Catalog.” Centralized governance and discoverability let teams reuse features safely across workflows instead of duplicating them in separate workspaces.
Why each option is right or wrong
A. Centralized governance and discoverability
The exam guide explicitly ties Unity Catalog to feature engineering by calling out the benefit of creating feature store tables at the account level in Unity Catalog rather than at the workspace level. In practice, that matters because a single governed catalog makes features easier to find, reuse, and manage across teams and workspaces, instead of duplicating feature definitions in isolated locations.
B. Automatic label generation
Feature engineering does not include automatic label generation as a Unity Catalog capability.
C. Guaranteed online serving without publication
Online serving still requires explicit model publication and serving setup.
D. Elimination of entity keys
Feature engineering still uses entity keys to join features to records.