EXL Service Data Engineer Interview Questions
The questions to prepare for a EXL Service Data Engineer interview. Questions from real interview reports rank first. Updated daily.
Approach for detecting and mitigating skew in PySpark pipelines using partitioning, join strategies, and runtime monitoring.
EXL ServiceCompare batch and streaming data processing, including when each fits best in a pipeline.
EXL ServiceEvaluates your ability to design reliable ingestion from S3 for downstream EXL Service analytics.
EXL ServiceEvaluates your breadth of SQL and Python experience relevant to EXL Service data engineering work.
EXL ServiceEvaluates data modeling understanding and how you apply normalization in SQL-based systems.
EXL ServiceTests your understanding of join semantics and row-count implications in SQL.
EXL ServiceCalculate five-day rolling service averages using daily aggregation, a calendar join, and PostgreSQL window functions.
ExlEXL ServicevvConstructFind the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.
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InformaticaUse a CTE, join, and conditional aggregation to summarize valid monthly user activity.
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Assesses practical decision-making between SQL and Python for data transformations.
EXL ServiceEvaluates your hands-on scripting skills and ability to combine Python and SQL for data tasks.
EXL Service