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Diageo Data Analyst Interview Questions

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

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1
SQL & Data ManipulationStart here. 1 question + 3 drills · ~38 min
Detect and Handle Outliers in SQLEasy

Explain common SQL-friendly ways to detect outliers and how to handle them without distorting downstream analysis.

Data WranglingGroup ByAggregationsDDiageo
SQL Window Functions Rolling AverageMedium
Practice
Practice drill

Calculate three-day rolling average sales by region using aggregation, joins, and PostgreSQL window functions.

Window FunctionssqlAAreteSSweetwaterKohl's
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Top Customers by Net SalesMedium
Practice
Practice drill

Compute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.

SubqueriesJoinsData WranglingGain DigitalTCSZest AI
2
Behavioral & Leadership1 question · ~8 min
Prioritizing Across Competing Client ProjectsEasy

Tests prioritization under pressure across multiple projects, including trade-off judgment, stakeholder communication, and ownership of outcomes.

OwnershipPrioritizationDDiageo

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The finish line: interview-readyComplete all 2 questions plus 3 hands-on drills to finish this plan.