Airflow Interview Questions

15 real Airflow questions asked in live technical interviews — each with a model answer. Updated weekly.

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These Airflow interview questions were captured from real interviews by candidates using Assisting AI. Each links to a full model answer. For real-time help during your own interview, get Assisting AI from ₹500/day.

What is XCom?🟢 Easy · Conceptual · Asked 2×Can you tell me about DAGs in Airflow?🟢 Easy · Conceptual · Asked 1×Were the data sources known? Was the data loaded? Which scheduling orchestration did you use, as mentioned Airflow?🟡 Medium · Conceptual · Asked 1×What types of tasks are used in an Airflow DAG? Does a DAG completely depend on its tasks?🟡 Medium · Conceptual · Asked 1×How have you used Airflow to orchestrate end‑to‑end data pipelines, for example, extracting data from DMS and loading it into downstream systems?🟡 Medium · Other · Asked 1×Explain job orchestration. In job orchestration, there are various methods such as Airflow, Glue, Lambda, Step Functions, etc. Can you explain when you would use each?🟡 Medium · Conceptual · Asked 1×What is a task? What is a task specifically?🟢 Easy · Conceptual · Asked 1×Can you perform the same logic or different logic within one task or within one stage?🟡 Medium · Conceptual · Asked 1×Who is responsible for creating DAGs and assigning tasks in Airflow, and is this part of the runtime?🟡 Medium · Conceptual · Asked 1×If hundreds of thousands of DAGs are triggered simultaneously, the system might crash. How would you design the system to handle this load?🔴 Hard · System Design · Asked 1×What is your experience with Airflow and data grid?🟡 Medium · Behavioral · Asked 1×Which orchestration tools are you using in your projects?🟢 Easy · Conceptual · Asked 1×How do you handle data dependency versus task dependency scenarios? For example, if a task completes successfully but the data is incorrect.🟡 Medium · Conceptual · Asked 1×These two processes are managed by different teams. How would you create a dependency between them?🟡 Medium · Conceptual · Asked 1×Let's say you have two Capos DAGs. How would you create a dependency so that DAG A must finish before DAG B starts?🟡 Medium · Conceptual · Asked 1×

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