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RAN-DBDEA-00072
Ranvier · DBDEA

Exam DBDEA Topics: jobs Difficulty: medium

Two upstream teams independently update the Unity Catalog Delta tables sales.orders and sales.customers at unpredictable times. A downstream Lakeflow Job must run only after both tables have been updated since the previous run. The team wants to avoid an always-on cluster and does not control how the upstream teams write their data. Which trigger should the job use?

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  1. A. A scheduled trigger that runs every 10 minutes and checks both tables for new commits in a notebook
  2. B. A table update trigger monitoring both tables, configured to run when all monitored tables are updated
  3. C. A file arrival trigger on the cloud storage paths that back both tables
  4. D. Two jobs with a table update trigger on each table, chained by a Run Job task
Reveal answer

Correct answer: A table update trigger monitoring both tables, configured to run when all monitored tables are updated

Reference: https://docs.databricks.com/aws/en/jobs/trigger-table-update

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Official Answer (B): A table update trigger monitoring both tables, configured to run when all monitored tables are updated

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