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Block/Cash App Data Analyst Interview Questions

The questions to prepare for a Block/Cash App Data Analyst interview. Questions from real interview reports rank first. Updated daily.

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1
Product SenseStart here. 1 question · ~8 min
Test New Feature Engagement ImpactMedium

Design an experiment to determine whether a new feature meaningfully improves user engagement without harming core product health.

ExperimentationFeature PrioritizationUser NeedsBBlock/Cash App
2
SQL & Data Manipulation2 questions + 3 drills · ~46 min
RANK vs DENSE_RANK in LeaderboardsEasy

Explain how RANK() and DENSE_RANK() handle ties differently in ordered SQL results such as leaderboards.

Window FunctionsRankingData WranglingBBlock/Cash App
Understanding Common Table Expressions (CTEs)Medium

Explain what CTEs are and their advantages in SQL queries.

CTEsBBlock/Cash App
Top Merchants Per RegionMedium
Practice
Practice drill

Use aggregation and window functions to identify the three highest-spending merchants within each region.

Window FunctionsJoinssql queryHealth Care ServiceGopuffBBlock/Cash App
Top Credit Score Applicants by StateMedium
Practice
Practice drill

Identify the highest-credit-score 5% of applicants within each state using percentiles and window ranking.

Window FunctionsJoinsRankingAmerican Credit Acceptance
Handling Missing DataMedium
Practice
Practice drill

Standardize missing observation fields with fallback values, missingness flags, and ordered output.

Window Functionsmissing valuesdata cleaningEversource EnergyCincinnati Children's HospitalAdtalem Global Education

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3
Behavioral & Leadership1 question · ~8 min
Clarifying Vague Stakeholder RequirementsMedium

Tests how you gather requirements under ambiguity by using stakeholder management, structured communication, and problem clarification.

User NeedsDealing With AmbiguityrequirementsBBlock/Cash App
The finish line: interview-readyComplete all 4 questions plus 3 hands-on drills to finish this plan.