Google Sample Question 26 of 27

You orchestrate ETL pipelines by using Cloud Composer. One of the tasks in the Airflow DAG relies on a third-party service. You want to be notified when the task does not succeed. What should you do?

Source: Google Cloud OFFICIAL

Official sample question published by Google Cloud. WiseOwlLearns is not affiliated with Google LLC.

All explanations and Option Analyzer™ content are generated by WiseOwlLearns and are not endorsed by Google Cloud.

A Assign a function with notification logic to the on_failure_callback parameter for the operator responsible for the task at risk. ✓ Correct
B Assign a function with notification logic to the sla_miss_callback parameter for the operator responsible for the task at risk.
C Assign a function with notification logic to the on_retry_callback parameter for the operator responsible for the task at risk.
D Configure a Cloud Monitoring alert on the sla_missed metric associated with the task at risk to trigger a notification.
🦉 Explanation by WiseOwl Tutor™ — not endorsed by Google

A is correct as the callback function will be invoked when the specific task fails. B is not correct as the callback function will be invoked when the task misses its defined SLAs and not specifically when it fails. C is not correct as the callback function will be invoked when the task is retried after a failure and not if it just fails without retrying. D is not correct as the alert is set up on the wrong metric and it requires additional configurations.

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