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Updated weekly · Last refresh Aug 30

Booz Allen Data Analyst Interview Questions

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

23questions
~3htotal time
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1
PipelinesStart here. 3 questions · ~24 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityBooz Allen
Validate Misleading VisualizationsMedium

How to validate that dashboard visuals reflect the underlying data correctly and do not distort the story.

Data WranglingETLQualityBooz Allen
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2
Behavioral & Leadership14 questions · ~112 min
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3
More topics6 questions · ~48 min
Structured vs Unstructured Data BasicsEasy

Explain how structured and unstructured data differ in format, storage, and how easily they can be queried with SQL.

Data WranglingETLBooz Allen
Choosing Statistical MethodsMedium

Tests statistical reasoning and selection of appropriate techniques for the question.

Confidence IntervalsRegressionHypothesis TestingBooz Allen
Finding Customer Behavior TrendsMedium

Tests your ability to derive actionable insights from behavioral data.

Leading IndicatorsDiagnosisBooz Allen
Handling Outliers in DataMedium

Tests your approach to outlier detection, treatment, and maintaining analysis validity.

RegressionCorrelationVarianceBooz Allen
Handling Missing ValuesMedium

Tests practical data cleaning decisions and impact on downstream analysis.

SubqueriesData WranglingCase WhenBooz Allen
Measuring Data Initiative SuccessMedium

Tests ability to define metrics, baselines, and evaluation methods for impact.

North Star MetricKPIsDiagnosisBooz Allen

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Second Highest Without AggregatesHard
Practice
Practice drill

Find the second highest salary in each department without using aggregate functions.

SubqueriesRankingSelf-JoinsCredit GenieDevoteamCisco Restaurant + Bar
Cohort Retention with SQLHard
Practice
Practice drill

Compare monthly SparkBeyond user retention by cohort using CTEs, date arithmetic, aggregation, and LAG window functions.

Window FunctionsDate FunctionsAggregationsSparkBeyondBooz Allen
Rolling 30-Day Retention QueryHard
Practice
Practice drill

Calculate acquisition-cohort retention within 30 days by channel using CTEs, joins, and conditional date ranges.

sql queryEvenUpBooz Allen
The finish line: interview-readyComplete all 23 questions plus 3 hands-on drills to finish this plan.