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T Mobile Us Risk Analyst Interview Questions

The questions to prepare for a T Mobile Us Risk Analyst interview. Questions from real interview reports rank first. Updated weekly.

20questions
~3htotal time
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1
SQL & Data ManipulationStart here. 3 questions + 3 drills · ~54 min
CTE vs Subquery PerformanceMedium

Tests query optimization understanding for large-scale risk datasets.

SubqueriesPerformance TuningCTEsT Mobile Us
Detecting Duplicate TransactionsMedium

Tests SQL skills for deduplication and practical risk data handling.

transactionsdata integrityT Mobile Us
Rolling 30-Day Default RateHard

Tests advanced SQL window function ability and risk metric construction.

Window Functionsfinancial dataRunning TotalsT Mobile Us
Rolling 7-Day Transaction AverageMedium
Practice
Practice drill

Calculate each customer's 7-day transaction average using daily aggregation and a PostgreSQL window frame.

Window FunctionstransactionsRunning TotalsTruistBBVA
Running Totals With CTEsMedium
Practice
Practice drill

Calculate daily net cash movement and running balances for Alpaca brokerage accounts using a CTE, subquery, and window function.

SubqueriesCTEsRunning TotalsAlpacaGoldman Sachs Bank
7-Day Rolling Active UsersMedium
Practice
Practice drill

Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.

Window FunctionsDate FunctionsRunning TotalsMetaSpotifyMeta IT
2
Behavioral & Leadership12 questions · ~96 min
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3
More topics5 questions · ~40 min
Metrics for Fraud Rule FrictionMedium

Tests metric selection and balancing fraud reduction with customer experience.

customer experienceT Mobile Us
Investigate Subscriber Default SpikeHard

Tests structured root-cause analysis and prioritization for credit and default risk.

root causeProblem Solvingcredit riskT Mobile Us
Validate Third-Party Data ImpactHard

Tests statistical validation, model evaluation, and evidence-based adoption of new data sources.

SamplingBiasmodel validationT Mobile Us
Experiment for Credit-Check ThresholdHard

Tests experimental design, causal thinking, and safe rollout planning for risk policy changes.

experiment designHypothesis TestingA/B TestingT Mobile Us
Credit Modeling and Retro AnalysisHard

Assesses scenario-based modeling and decisioning for credit risk at T Mobile Us.

modelingT Mobile Us

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