Top 16
Prep plan
Updated weekly · Last refresh Aug 30

The Data Analyst Interview Questions

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

16questions
~2htotal time
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1
SQL & Data ManipulationStart here. 7 questions + 3 drills · ~86 min
Optimizing Complex SQL JoinsMedium

Tests ability to write and optimize SQL for very large datasets with complex join logic.

large datasetsJoinsData ManipulationThe
Improving Slow SQL PerformanceMedium

Assesses query optimization skills and how you reduce compute cost while improving performance.

Performance Tuningquery optimizationThe
Validating Integrity During MigrationMedium

Evaluates your approach to ensuring correctness and consistency during data migrations.

migrationdata integrityvalidationThe
Handling Production Data QualityMedium

Tests incident response and data quality troubleshooting in production reporting and analytics workflows.

Data Qualityproduction environmentThe
Building Executive DashboardsMedium

Assesses dashboarding and communication skills for turning complex metrics into executive-ready insights.

data visualizationpower biThe
Updating Tables in SQLEasy

Tests your understanding of SQL data manipulation and safe update practices.

sqlThe
Top 5% Users by EngagementMedium
Practice
Practice drill

Use a CTE and window function to identify The's top 5% of users by engagement score for the last quarter.

sqluser engagementThe
Rolling Average with SQL WindowsMedium
Practice
Practice drill

Calculate each active RpmGlobal Enterprise Planning user's 30-day rolling average of daily activity.

TavantRpmglobalTwo Six Technologies
3-Month Rolling Average in SQLMedium
Practice
Practice drill

Calculate each user's April three-month rolling interaction average using monthly aggregation, a calendar spine, and window functions.

Window Functionssql queryThe
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2
Behavioral & Leadership9 questions · ~72 min
Explaining a Technical Concept ClearlyEasy

Tests communication, ownership, and stakeholder management when translating technical complexity into actionable business understanding.

Problem SolvingData Structurestechnical fundamentalsThe
Adapting to a New ToolEasy

Tests learning agility and ownership when adopting unfamiliar tools or techniques under real project pressure.

learning agilityToolsadaptabilityThe
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The finish line: interview-readyComplete all 16 questions plus 3 hands-on drills to finish this plan.