Databricks Certified Data Engineer - Associate

Explanation

The correct answer is C because:

• Option C: Downloading the JSON description of the Job from the Job's page provides a complete, machine-readable configuration file that includes the schedule settings. This JSON file can be stored in a version control system (like Git) and tracked over time, allowing for proper version control of the Job's schedule configuration.

Why other options are incorrect:

• Option A: Linking the Job to notebooks in a Databricks Repo only version controls the notebook code, not the Job's schedule configuration itself.

• Option B: Submitting the Job once on a Job cluster doesn't provide a version-controllable configuration file for the schedule.

• Option D: Submitting the Job once on an all-purpose cluster similarly doesn't provide a configuration file for version control.

• Option E: Databricks Jobs use JSON format for configuration, not XML. Downloading XML description is not a valid option.

Best Practice:

The JSON description contains all Job settings including the schedule, which can be committed to version control, enabling tracking of changes, rollback capabilities, and collaborative development of Job configurations.