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Exam DP-750 Topic 1 Question 58 Discussion

Actual exam question for Microsoft's DP-750 exam
Question #: 58
Topic #: 1
You have an Azure Databricks workspace that contains a job in Lakeflow Jobs named Job1.
Job1 processes raw data files stored in Azure Storage.
New files arrive at unpredictable intervals.
You need to ensure that Job1 starts automatically when new files arrive and does NOT consume compute resources when no data is available.
Which type of job trigger should you use?

Suggested Answer: B Vote an answer

The File arrival trigger is exactly what you need for this use case. It natively solves your problem by launching a job the moment new files land in your Azure Storage container, automatically scaling down to zero compute when no data is processing.
Event-Driven: Instead of relying on a time-based schedule (cron) that wastes resources, the Lakeflow Job monitors the specific Azure location and starts exactly when new data appears.
Zero Idle Compute: You can use serverless compute or an ephemeral job cluster that spins up just for the duration of the run and terminates immediately after, meaning zero billing during downtime.
Cloud Cost Efficient: Listing files to detect new arrivals is typically free or fractions of a cent (only incurring minimal cloud provider API costs for listing the storage location).
Reference:
https://learn.microsoft.com/en-us/azure/databricks/jobs/file-arrival-triggers

by Arlen at Jul 13, 2026, 01:34 AM

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