Mphasis Data Engineer Interview Questions
The questions to prepare for a Mphasis Data Engineer interview. Questions from real interview reports rank first. Updated weekly.
Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.
MphasisFormat Mphasis service dates as MM/DD/YYYY strings using PostgreSQL TO_CHAR.
MphasisTests ability to reshape datasets for reporting and analytics use cases.
MphasisFind the second highest salary in each department without using aggregate functions.
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Devoteam
Cisco Restaurant + BarCompare star and snowflake schemas in a warehouse pipeline, including structure and transformation trade-offs.
MphasisApproach for handling schema changes and data quality checks in a high-volume data lake pipeline.
MphasisCompare ETL and ELT, and explain when ELT is the better pipeline pattern.
MphasisApproach for detecting and mitigating skew in PySpark pipelines using partitioning, join strategies, and runtime monitoring.
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Tests your ability to implement column transformations in a DataFrame-based pipeline.
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