Apache Airflow Certification Practice Test 01
Foundation Questions
Apache Airflow Certification Practice Test 01
Foundation Questions
Insightful Saga — Modern Data Engineering Certification Preparation
Question 1
A newly joined Data Engineer at a retail company notices that every night several ETL jobs execute in a predefined sequence. Management wants these activities organized and scheduled from a central platform. What Apache Airflow concept should the engineer learn first?
A DAG (Directed Acyclic Graph) defines the workflow structure, task dependencies and execution order.
Question 2
A banking company uses Airflow to orchestrate a daily data pipeline. The pipeline contains: - Extract Customer Data - Transform Customer Data - Load Customer Data Each individual step is represented by what Airflow component?
Question 3
A newly hired Data Engineer hears team members discussing DAG execution every day at 1:00 AM. Which Airflow component is responsible for determining when workflows should run?
Question 4
A healthcare company has multiple Airflow pipelines. Engineers want a user interface where workflow runs can be monitored. Which Airflow component provides this capability?
Question 5
A retail company wants a task that executes Python code to clean incoming sales data. Which operator should be considered?
Question 6
A company wants to execute a Linux shell command from Airflow. Which operator best fits this requirement?
Question 7
A newly joined engineer asks: "What Airflow component actually executes tasks once the Scheduler decides they should run?" What is the correct answer?
Question 8
An airline company wants one task to run only after another task completes successfully. What Airflow concept is being defined?
Question 9
A Data Engineer wants to reuse database credentials across multiple DAGs. Which Airflow feature should be configured?
Question 10
A banking company stores environment-specific configuration values such as: - File Paths - Bucket Names - API Endpoints Which Airflow feature is most suitable?
Question 11
A task needs to pass a generated file name to a downstream task. Which Airflow mechanism supports this?
Question 12
A healthcare organization wants an Airflow task to wait until a source file arrives. Which Airflow construct is commonly used?
Question 13
A company wants Airflow to connect to Snowflake. What Airflow capability manages the connection details?
Question 14
A newly hired engineer notices Airflow workflow definitions are written in Python. What are these workflow definitions called?
Question 15
A retail pipeline failed overnight. The support engineer wants to manually rerun the workflow. Which Airflow capability supports this?
Question 16
A company executes thousands of workflows. Management wants visibility into: - Successes - Failures - Runtime Which Airflow component helps most?
Question 17
A Data Engineer wants to group related tasks visually in the Airflow UI. Which feature should be evaluated?
Question 18
An ETL workflow should start every day at 6 AM. Which Airflow concept controls this behavior?
Question 19
A company wants to prevent unlimited concurrent workload execution. Which Airflow feature can restrict resource usage?
Question 20
A newly joined Airflow Administrator is asked: "What is the primary purpose of Apache Airflow?" Choose the BEST answer.
Apache Airflow is designed to schedule, orchestrate, monitor and manage workflows across data platforms.