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Automatic Data Processing Interview Questions

The questions to prepare for Automatic Data Processing interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

50questions
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1
SQL & Data ManipulationStart here. 5 questions + 2 drills · ~64 min
2
Coding4 questions · ~35 min
First Non-Repeating CharacterEasy
Practice

Find the first non-repeating character in a string using frequency counting and a second pass in O(n) time.

Hash TablesStringsSearchingAutomatic Data Processing
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3
Machine Learning5 questions · ~44 min
Improve Loan Default Prediction FeaturesEasy

Build and compare baseline and engineered-feature classifiers for consumer loan default prediction, and explain how feature engineering changes model performance.

Cross-ValidationFeature EngineeringSupervised LearningAutomatic Data Processing
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4
Pipelines5 questions · ~44 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityAutomatic Data Processing
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5
Execution5 questions · ~44 min
Balancing Speed Quality and ScopeHard

Describe a time you had to choose between speed, quality, and scope, and how you aligned stakeholders around the trade-off.

Trade-offsRisk AssessmentScope ManagementAutomatic Data Processing
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6
Metrics5 questions · ~44 min
Measure Marketing Campaign SuccessEasy

Define campaign success using business KPIs, funnel conversion, acquisition cost, and leading indicators tied to outcomes.

Funnel AnalysisKPIsLeading IndicatorsAutomatic Data Processing
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7
More topics21 questions · ~183 min
Align Product With User NeedsMedium

A framework for connecting user needs to business goals, then making product decisions with clear trade-offs and measurable outcomes.

User NeedsValue PropositionProduct VisionAutomatic Data Processing
Marketing Campaign A/B Test DesignMedium

Design a marketing campaign experiment with a pre-registered metric plan, power calculation, and ship rule that respects guardrails.

ExperimentationHypothesis TestingA/B TestingAutomatic Data Processing
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