Top 16
Prep plan
Updated weekly · Last refresh Oct 17
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Sonata Data Analyst Interview Questions

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

16questions
~2htotal time
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1
SQL & Data ManipulationStart here. 7 questions + 2 drills · ~81 min
Top Customers by Last-Quarter SpendMedium
Practice

Join customers and transactions, filter to the previous quarter, aggregate spend, and return the top three customers by total spend.

Date FunctionsJoinsAggregationsSSonata
Ensuring Integrity Across Data SourcesEasy

Explain practical SQL techniques to preserve data integrity when combining multiple data sources.

JoinsData WranglingCase WhenSSonata
Handling Missing and Dirty SQL DataMedium

Explain how to profile, clean, and standardize missing or dirty data before analysis.

Data WranglingCase WhenQualitySSonata
Customer Orders: LEFT vs INNER JOINEasy

Explain how INNER JOIN and LEFT JOIN differ, and when to use each for matched-only versus all-left-row analysis.

JoinsData WranglingGroup BySSonata
SQL Segmentation by OutcomeMedium
Practice
Practice drill

Segment Instacart orders by region, retailer, and derived delivery outcome with aggregate operational metrics.

JoinsData WranglingGroup ByInstacart
Operational Bottlenecks SQL JoinMedium
Practice
Practice drill

Join attendance, lunch service, and enrollment data to identify school-grade bottlenecks.

JoinsData WranglingGroup BySuccess Academy Charter Schools
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2
Metrics3 questions · ~26 min
Auditing a Billing DiscrepancyMedium

Evaluates your approach to validating data, definitions, and calculations for billing issues.

SSonata
Investigating KPI DropMedium

Assesses structured troubleshooting and root-cause analysis for metric anomalies.

Data Analysisperformance metricsSSonata
Data Trend Driving Process ChangeMedium

Assesses your ability to translate insights into actionable business improvements.

SSonata

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3
Behavioral & Leadership6 questions · ~53 min
Prioritizing Competing Report RequestsMedium

Tests prioritization under pressure, stakeholder management, and ownership when multiple reporting requests compete for limited analytics capacity.

Stakeholder Managementtime managementPrioritizationSSonata
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The finish line: interview-readyComplete all 16 questions plus 2 hands-on drills to finish this plan.