Top 41
Prep plan
Updated weekly · Last refresh Oct 17

T-Mobile Business Analyst Interview Questions

The questions to prepare for a T-Mobile Business Analyst interview. Questions from real interview reports rank first. Updated daily.

41questions
~6htotal time
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1
ExecutionStart here. 4 questions · ~33 min
Your Strengths and WeaknessesEasy

Give a specific, self-aware account of your strengths and weaknesses, supported by relevant examples and improvement actions.

Trade-offsSuccess CriteriaExecutionT-Mobile
Measuring Success for ImprovementsMedium

Tests your metrics thinking and ability to set outcomes, KPIs, and measurement plans.

Success CriteriaRoadmappingRisk AssessmentT-Mobile
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2
SQL & Data Manipulation3 questions + 2 drills · ~45 min
Analyzing Large Datasets with SQLEasy

Explain practical SQL methods for analyzing large datasets, including filtering, aggregation, sampling, and performance-aware query design.

JoinsData WranglingAggregationsT-Mobile
SQL Joins and De-duplicationMedium

Tests practical SQL knowledge for joining data and ensuring uniqueness in analysis.

JoinssqlT-Mobile
SQL for Store Performance InsightsHard
Practice
Practice drill

Aggregate weekly T-Mobile store metrics and rank stores by revenue, inventory shrink, and labor efficiency.

Joinsperformancecomplex queriesT-Mobile
SQL Window Functions for TransactionsMedium
Practice
Practice drill

Use PostgreSQL window functions to return each T-Mobile customer's latest transaction and the amount from the prior transaction.

Window FunctionsLag/LeadDate FunctionsT-Mobile
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3
Metrics5 questions · ~41 min
Diagnose a Customer Satisfaction DropMedium

Investigate a sudden drop in customer satisfaction and separate leading signals from the final NPS readout.

NPSLeading IndicatorsDiagnosisT-Mobile
Using Dashboards to Read KPIsEasy

Explain how visualization tools help analysts track KPIs, spot patterns, and support decisions.

KPIsData WranglingDiagnosisT-Mobile
Classify Leading vs Lagging MetricsEasy

Explain how to distinguish early directional metrics from outcome metrics, using a clear KPI framework tied to product decisions.

Lagging IndicatorsKPIsLeading IndicatorsT-Mobile
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4
Behavioral & Leadership28 questions · ~232 min
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5
More topics1 question · ~8 min
The finish line: interview-readyComplete all 41 questions plus 2 hands-on drills to finish this plan.