Answer: 500 ms

The default trigger interval for a streaming job in Databricks is 500 ms when the trigger option is not specified. To adjust this interval, you can use the `trigger()` function in your query, such as `trigger(processingTime='10 seconds')` or `trigger(processingTime='5 minutes')`. This allows for customization of the processing time to suit specific requirements.

Author: LeetQuiz Editorial Team