Exam Databricks-Certified-Professional-Data-Engineer Topic 4 Question 146 Discussion

Actual exam question for Databricks's Databricks-Certified-Professional-Data-Engineer exam
Question #: 146
Topic #: 4

Which statement describes the default execution mode for Databricks Auto Loader?

A. New files are identified by listing the input directory; new files are incrementally and idempotently loaded into the target Delta Lake table. B. Cloud vendor-specific queue storage and notification services are configured to track newly arriving files; new files are incrementally and impotently into the target Delta Lake table. C. Webhook trigger Databricks job to run anytime new data arrives in a source directory; new data automatically merged into target tables using rules inferred from the data. D. New files are identified by listing the input directory; the target table is materialized by directory querying all valid files in the source directory.

Suggested Answer: A Vote an answer

Databricks Auto Loader simplifies and automates the process of loading data into Delta Lake. The default execution mode of the Auto Loader identifies new files by listing the input directory. It incrementally and idempotently loads these new files into the target Delta Lake table. This approach ensures that files are not missed and are processed exactly once, avoiding data duplication. The other options describe different mechanisms or integrations that are not part of the default behavior of the Auto Loader.
References:
* Databricks Auto Loader Documentation: Auto Loader Guide
* Delta Lake and Auto Loader: Delta Lake Integration

by Rupert at Jul 31, 2026, 05:08 AM

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