A data engineering team has an Airflow DAG that runs every 30 minutes. They notice that sometimes a DAG run takes longer than 30 minutes, and they want to prevent overlapping runs of the same DAG. Which configuration should they set?

Set 'catchup' to False on the DAG.

Set 'max_active_runs' to 1 on the DAG.

Set 'depends_on_past' to True on the DAG.

Set 'schedule_interval' to None on the DAG.

In Airflow, how do you define that task B should run only after task A has completed successfully?

By setting the retries parameter of task B

By placing task B in a different DAG

By using the bitwise shift operator: task_a >> task_b

By setting the priority_weight of task B higher than task A

A company has an Airflow DAG that runs every hour. They notice that the previous day's runs are still being executed, and they want to prevent the scheduler from running missed DAG runs. Which configuration should they set?

Set 'depends_on_past' to True on the DAG.

Set 'max_active_runs' to 1 on the DAG.

Set 'catchup' to False on the DAG.

Set 'schedule_interval' to None on the DAG.

Dell Data Engineering Optimize

Domain 6Objective 3

Describe the Use of Apache Airflow DATA-ENGINEERING-OPTIMIZE Practice Questions (Page 3)

Part of the Building Data Pipelines with Python domain, which accounts for 20% of the DATA-ENGINEERING-OPTIMIZE exam.

22questions here

5free pages

6concepts

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Questions 11–15

11application · medium
A data engineering team has an Airflow DAG that runs every 30 minutes. They notice that sometimes a DAG run takes longer than 30 minutes, and they want to prevent overlapping runs of the same DAG. Which configuration should they set?
Select an answer first
12foundation · easy
A data engineer wants to run a SQL query against a database as part of an Airflow pipeline. Which operator is most appropriate for this task?
Select an answer first
13foundation · easy
In Airflow, how do you define that task B should run only after task A has completed successfully?
Select an answer first
14application · medium
A data engineering team is troubleshooting an Airflow deployment where tasks are not being scheduled. They have verified that the DAG file is in the correct directory and the scheduler is running. Which component should they check next?
Select an answer first
15application · medium
A company has an Airflow DAG that runs every hour. They notice that the previous day's runs are still being executed, and they want to prevent the scheduler from running missed DAG runs. Which configuration should they set?
Select an answer first

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Describe the Use of Apache Airflow DATA-ENGINEERING-OPTIMIZE Practice Questions (Page 3)

Questions 11–15

A data engineering team has an Airflow DAG that runs every 30 minutes. They notice that sometimes a DAG run takes longer than 30 minutes, and they want to prevent overlapping runs of the same DAG. Which configuration should they set?

A data engineer wants to run a SQL query against a database as part of an Airflow pipeline. Which operator is most appropriate for this task?

In Airflow, how do you define that task B should run only after task A has completed successfully?

A data engineering team is troubleshooting an Airflow deployment where tasks are not being scheduled. They have verified that the DAG file is in the correct directory and the scheduler is running. Which component should they check next?

A company has an Airflow DAG that runs every hour. They notice that the previous day's runs are still being executed, and they want to prevent the scheduler from running missed DAG runs. Which configuration should they set?

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