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Updated weekly · Last refresh Aug 30

ProSidian Data Analyst Interview Questions

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

16questions
~2htotal time
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1
MetricsStart here. 4 questions · ~32 min
Building a Dashboard From ScratchMedium

Tests your end-to-end dashboard design and delivery approach.

KPIsLeading IndicatorsDiagnosisProSidian
Measuring HR Initiative SuccessMedium

Tests your ability to define metrics, baselines, and evaluation methods for HR programs.

North Star MetricKPIsDiagnosisProSidian
Importance of Data VisualizationEasy

Tests your understanding of how visualization supports decision-making.

KPIsLeading IndicatorsDiagnosisProSidian
Identifying HR TrendsMedium

Tests your skills in exploratory analysis and trend detection in HR data.

Leading IndicatorsDiagnosisTime SeriesProSidian
2
Behavioral & Leadership10 questions · ~80 min
Handling Critical Feedback on AnalysisEasy

Tests how you receive and act on feedback about your analysis, including communication, stakeholder management, and self-awareness.

CommunicationOwnershipDealing With AmbiguityProSidian
Prioritizing Across Competing Client ProjectsEasy

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

OwnershipPrioritizationProSidian
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3
More topics2 questions · ~16 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityProSidian
Data Cleaning and PreparationMedium

Tests rigor in preparing reliable datasets for analysis.

Data WranglingETLQualityProSidian

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Analyze Decision Impact by RegionEasy
Practice
Practice drill

Use joins, CASE WHEN, and date filtering to compare outcome rates before and after a decision.

Data WranglingDiagnosisAggregationsHarbourVest Partners
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
Identify Funnel Bottlenecks in OnboardingHard
Practice
Practice drill

Use joins, CTEs, and aggregations to find the weakest step in an onboarding funnel and estimate lost conversions.

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