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RAN-DBDEA-00070
Ranvier · DBDEA

Exam DBDEA Topics: jobs Difficulty: medium

A vendor drops CSV files into an Amazon S3 bucket at unpredictable times — sometimes several times a day, sometimes not for days. Today a cron job runs every 30 minutes and usually finds nothing new. The workspace has Unity Catalog enabled, and the bucket is registered as a Unity Catalog external location. Which change best fits this data availability pattern?

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  1. A. Keep the scheduled trigger but move it to every minute, to shrink the window for missed files
  2. B. Switch to a continuous trigger so the job is always running and picks up files immediately
  3. C. Replace the scheduled trigger with a file arrival trigger on the external location path
  4. D. Use a table update trigger on the Delta table that the job writes
Reveal answer

Correct answer: Replace the scheduled trigger with a file arrival trigger on the external location path

Reference: https://docs.databricks.com/aws/en/jobs/file-arrival-triggers

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Official Answer (C): Replace the scheduled trigger with a file arrival trigger on the external location path

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