Databricks Certified Data Engineer - Associate

Explanation

The correct answer is C because:

1. Runs Tab vs Tasks Tab: In Databricks Jobs UI, the Runs tab shows all historical and current runs of a job. Each run contains detailed execution information for all tasks within that run.

2. Active Run Details: By clicking on the active run in the Runs tab, you can access:

   • Notebook execution logs
   • Execution duration metrics
   • Resource utilization (CPU, memory, I/O)
   • Error messages and warnings
   • Task-level performance data

3. Why other options are incorrect:

   • A: Incorrect because you cannot "immediately review the processing notebook" from the Runs tab without clicking on the specific active run.
   • B: Incorrect because the Tasks tab shows task definitions and configurations, not active run details.
   • D: Incorrect because Databricks provides comprehensive monitoring tools to diagnose performance issues.
   • E: Incorrect because the Tasks tab doesn't provide real-time execution monitoring; it's for task configuration.

4. Documentation Reference: As mentioned in the text, the Databricks documentation confirms that the Runs tab provides detailed information about each run's execution, including notebook execution logs, duration, resource utilization, and error messages.

This approach allows the tech lead to investigate why the notebook is running slowly by examining the specific run's execution details, logs, and performance metrics.