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Updated weekly · Last refresh Oct 17

West Monroe Data Analyst Interview Questions

The questions to prepare for a West Monroe Data Analyst interview. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 3 questions + 3 drills · ~54 min
Star vs Snowflake for Sales AnalyticsMedium

Compare star and snowflake schemas for warehouse design, including trade-offs in normalization, query simplicity, and analytics performance.

JoinsData WranglingGroup ByWest Monroe
Optimizing Slow SQL QueriesMedium

Tests SQL performance troubleshooting and query optimization approach.

Performance TuningindexessqlWest Monroe
Designing a Database From ScratchMedium

Tests data modeling skills and ability to design relational structures.

dimensionsData ModelingWest Monroe
SQL to Find Operational InefficiencyMedium
Practice
Practice drill

Identify Revolut merchants with high payment failure rates and report related support-resolution metrics.

Joinsbusiness problemsqlRevolut
Analytics Data Model DesignHard
Practice
Practice drill

Demonstrate an analytics model by summarizing product usage from fact and dimension tables with joins and aggregation.

fact tablesData Wranglingdatabase designAutodesk
Average Spend by User CohortMedium
Practice
Practice drill

Calculate average per-user spend by signup-month cohort, including users with no transactions.

JoinsGroup BysqlPocket Fm
2
Behavioral & Leadership8 questions · ~64 min
Messy Data Under Decision PressureMedium

Tests ownership and judgment when working through ambiguous, low-quality data to produce credible recommendations.

Data QualityProblem SolvingOwnershipWest Monroe
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3
More topics4 questions · ~32 min
Data Quality in ML PipelinesMedium

Practical approach for maintaining data quality across ML ETL pipelines, orchestration, and repeatable data processing.

Data QualityETLData ModelingWest Monroe
Estimating Market Size for a ProductHard

Tests analytical thinking and market sizing methodology for product decisions.

opportunity sizingMarket SizingProduct VisionWest Monroe
Diagnosing Customer Retention DropsHard

Tests metrics analysis, hypothesis-driven investigation, and root-cause identification.

RetentionDiagnosisCohort AnalysisWest Monroe
Legacy Data Warehouse Cloud MigrationHard

Tests cloud migration planning, risk assessment, and data platform considerations.

data integrationmigrationCloudWest Monroe

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