Databricks Certified Data Engineer Associate · Free Practice Question Hard
Question 33
How does Automatic Liquid Clustering determine which columns to use as clustering keys in a Unity Catalog-managed Delta table?
-
A
It intelligently selects clustering keys from predefined clustering columns specified during table creation.
-
B
It automatically determines optimal clustering keys based on the type and order of column definition in the schema.
-
C
It leverages Predictive Optimization to choose optimal clustering keys based on observed query behavior.
-
D
It leverages advanced sampling strategies to randomize column selection after uniformly balancing data across all files.
Reveal correct answer
Correct answer: C
Explanation
Automatic Liquid Clustering in Databricks is a feature designed to automatically optimize the physical layout of data in Delta tables based on the access patterns and metadata statistics. It leverages Predictive Optimization, which uses query behavior analytics to select clustering keys dynamically.
Study materials from our exam preparation course on Udemy:
Discussion
Think the marked answer is wrong, or have a better explanation? Share it below — comments appear after review.
