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RAN-DBDEA-00241
Ranvier · DBDEA

Exam DBDEA Topics: jobs Difficulty: medium

A Lakeflow Job runs two slow loads in parallel after the same extract task: load_customers and load_orders have no dependency on each other, and both must stay concurrent to fit the nightly window. A final task, run_quality_checks, must execute exactly once, only after both loads have completed successfully. How should run_quality_checks be wired?

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  1. A. Chain extract, load_customers, load_orders, and run_quality_checks in a strict line, because only linear chains can make a task wait for two others
  2. B. Attach run_quality_checks to whichever load finishes first, and let it start as soon as that single branch completes
  3. C. Split the checks into two tasks, one per branch, because a single task cannot depend on more than one upstream task
  4. D. Make run_quality_checks depend on both load_customers and load_orders, keeping the default All succeeded run-if condition
Reveal answer

Correct answer: Make run_quality_checks depend on both load_customers and load_orders, keeping the default All succeeded run-if condition

Reference: https://docs.databricks.com/aws/en/jobs/configure-task

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Official Answer (D): Make run_quality_checks depend on both load_customers and load_orders, keeping the default All succeeded run-if condition

⚓ Official Documentation Anchor: https://docs.databricks.com/aws/en/jobs/configure-task
Ranvier · DBDEA

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