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MentorPass Interview Questions

The questions to prepare for MentorPass interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

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1
ExecutionStart here. 8 questions · ~64 min
Managing Critical Cross-Team DependencyMedium

Explain how you would manage a project at risk due to a slipping dependency owned by another team.

Risk AssessmentDependenciesScope ManagementMMentorPass
Handle Scope Creep Mid-ProjectMedium

Explain how you would manage scope creep without damaging stakeholder trust or putting delivery at risk.

Trade-offsRisk AssessmentScope ManagementMMentorPass
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2
Pipelines8 questions · ~64 min
Data Quality and Schema EvolutionMedium

Approach for handling schema changes and data quality checks in a high-volume data lake pipeline.

schema evolutionData ModelingQualityMMentorPass
Handle Late Data in StreamingHard

Design a streaming pipeline that can absorb late-arriving events while keeping aggregates correct and downstream tables stable.

Stream ProcessingIdempotencyData ModelingMMentorPass
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3
SQL & Data Manipulation4 questions + 3 drills · ~62 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 ByMMentorPass
Many-to-Many Modeling for LatencyMedium

Tests your ability to model many-to-many relationships for low-latency query performance.

Joinsmany-to-oneData ModelingMMentorPass
Contact Center Agent Performance MetricsHard
Practice
Practice drill

Compute daily agent call KPIs and SLA using joins, aggregations, and window ranking in a contact center model.

ETLAggregationsData ModelingADP
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
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
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4
Behavioral & Leadership16 questions · ~128 min
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5
More topics3 questions · ~24 min
Project Health KPI ReportingMedium

Define a project health KPI framework and tailor reporting for executives and client sponsors.

project healthkpi hierarchyreportingMMentorPass
Skewed PySpark Join OptimizationHard

Tests performance tuning skills for PySpark joins under skew at scale.

Joinssparkperformance analysisMMentorPass
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The finish line: interview-readyComplete all 39 questions plus 3 hands-on drills to finish this plan.