Comprehensive and Detailed Explanation From Exact Extract:

The Spark UI is the standard and most effective way to inspect executor logs, task time, input size, and shuffles.

From the Databricks documentation:

“You can monitor job execution via the Spark Web UI. It includes detailed logs and metrics, including task-level execution time, shuffle reads/writes, and executor memory usage.”

(Source: Databricks Spark Monitoring Guide)

Option A is incorrect: logs are not guaranteed to be in/tmp, especially in cloud environments.

B.—verbosehelps during job submission but doesn't give detailed executor logs.

D.spark-sqlis a CLI tool for running queries, not for inspecting logs.

Hence, the correct method is using the Spark UI → Stages tab → Executor logs.