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Updated weekly · Last refresh Sep 24

Dun & Bradstreet Data Analyst Interview Questions

The questions to prepare for a Dun & Bradstreet Data Analyst interview. Questions from real interview reports rank first. Updated daily.

31questions
~4htotal time
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1
PipelinesStart here. 3 questions · ~24 min
Structured vs Unstructured Pipeline DataEasy

Explain how structured and unstructured data differ, and how that changes pipeline design and downstream modeling.

InfrastructureData ModelingQualityDun & Bradstreet
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityDun & Bradstreet
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2
SQL & Data Manipulation3 questions + 3 drills · ~54 min
Removing Noise From Unstructured DataMedium

Tests your approach to cleaning and preparing messy data for analysis.

data cleaningnoise reductionDun & Bradstreet
Dealing With Inconsistent DuplicatesMedium

Tests data quality techniques and ability to ensure trustworthy analysis.

Data WranglingCase WhenAggregationsDun & Bradstreet
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
Handling 30% Missing Critical DataMedium
Practice
Practice drill

Audit critical-field completeness by application source and report missing-entry percentages.

missing valuesdata accuracyData WranglingAmerican Credit Acceptance
Clean Inconsistent Expense EntriesHard
Practice
Practice drill

Clean inconsistent expense records with CTEs, joins, CASE logic, and aggregation to summarize valid spend by department.

Data WranglingAggregationsQualityUniversity of Colorado Denver
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3
Product Sense3 questions · ~24 min
Current Project IdeasMedium

Assesses product sense and your ability to connect analytics opportunities to business needs.

Dun & Bradstreet
Framing Business QuestionsMedium

Tests requirements gathering and translating business goals into analytic questions.

User NeedsPain PointsUse CasesDun & Bradstreet
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4
Behavioral & Leadership18 questions · ~144 min
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5
More topics4 questions · ~32 min
Reporting Metrics With Visualization ToolsEasy

Explain how you use visualization tools to report KPIs clearly and connect leading and lagging indicators for decision-making.

Data WranglingEngagement MetricsDun & Bradstreet
Conducting Sensitivity AnalysisHard

Tests rigor in uncertainty analysis and ability to support reliable conclusions.

RegressionHypothesis TestingCausal InferenceDun & Bradstreet
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