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Athena Interview Questions

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

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These Athena 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.

Tell me about your experience with AWS data services more broadly. Have you worked with Athena, and how do you decide when to use Athena versus Redshift for querying?🟡 Medium · Conceptual · Asked 29×Which columnar storage format is best for Amazon Athena?🟢 Easy · Conceptual · Asked 1×What file formats does Athena support?🟢 Easy · Conceptual · Asked 1×Which AWS service do you use for data querying and data processing?🟡 Medium · Conceptual · Asked 1×Can we use Athena instead of Glue?🟡 Medium · Conceptual · Asked 1×Is Athena used? How are Athena and Glue interlinked?🟡 Medium · Conceptual · Asked 1×To connect with Athena, which data store would you use?🟢 Easy · Conceptual · Asked 1×Can Glue be replaced with Athena? What other tools can replace Glue? What is the basic use of Glue? What is the main use of Glue in a project? Since EMR can also be used and is less costly, is there any particular reason to use Glue?🟡 Medium · Conceptual · Asked 1×In a columnar database, if a row has 40 columns but a query only needs 4 columns, the database only accesses those 4 columns. It doesn't scan the entire row. This is efficient for extraction, especially in Athena. Can you explain how columnar storage improves query performance?🟡 Medium · Conceptual · Asked 1×Explain planning in Amazon Athena.🟢 Easy · Conceptual · Asked 1×Have you worked with Athena? Do you have experience creating tables in Athena?🟢 Easy · Conceptual · Asked 1×

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