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Updated weekly · Last refresh Oct 17

Capgemini Government Solutions Data Engineer Interview Questions

The questions to prepare for a Capgemini Government Solutions Data Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 5 questions + 1 drill · ~55 min
SQL Duplicate DetectionEasy
Practice

Find duplicate customer profiles by grouping on identifying fields and returning only repeated records.

Group ByHavingAggregationsCapgemini Government Solutions
SQL vs NoSQLMedium

Assesses data storage fundamentals and ability to compare tradeoffs.

nosqlsqlCapgemini Government Solutions
Optimize SQL Query PerformanceHard
Practice

Optimize a PostgreSQL reporting query by reducing intermediate rows, using appropriate joins, and calculating monthly performance efficiently.

database optimizationdatabase managementindexesCapgemini Government Solutions
Optimize a Slow SQL QueryHard
Practice
Practice drill

Rewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.

database optimizationJoinsData WranglingAmeripriseEEltro Cyberchrome PrivateEnergyHub
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2
Pipelines27 questions · ~242 min
Data Warehousing in PipelinesEasy

Explain what a data warehouse is and why it matters in analytics pipelines.

InfrastructureETLData ModelingCapgemini Government Solutions
Handle Late Data in StreamingHard

Design a streaming pipeline that can absorb late-arriving events while keeping aggregates correct and downstream tables stable.

Stream ProcessingIdempotencyData ModelingCapgemini Government Solutions
Data Cleaning in ETL PipelinesEasy

Approach for cleaning and preparing raw data inside an ETL pipeline.

Data WranglingETLQualityCapgemini Government Solutions
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3
Coding6 questions · ~54 min
Merge Two DataFramesEasy

Tests your ability to use DataFrame merge/join operations correctly in Python.

Hash TablesArraysSortingCapgemini Government Solutions
Explain Code Snippet OutputMedium
Practice

Trace a Python snippet and return the exact printed output as a string.

Hash TablesCodingArraysCapgemini Government Solutions
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4
Behavioral & Leadership12 questions · ~108 min
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