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Prep plan
Updated weekly · Last refresh Oct 17

DigitalOcean Data Scientist Interview Questions

The questions to prepare for a DigitalOcean Data Scientist interview. Questions from real interview reports rank first. Updated daily.

30questions
~4htotal time
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1
SQL & Data ManipulationStart here. 3 questions + 2 drills · ~46 min
2
A/B Testing & Experimentation3 questions · ~26 min
Sample Size for Onboarding TestMedium

Size an A/B test for a new Asana onboarding flow using a 2pp activation MDE, explicit guardrails, and a pre-registered launch rule.

MDEPower AnalysisSample SizeDigitalOcean
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3
Statistics & Probability3 questions · ~26 min
Statistical Project WalkthroughMedium

Walk through a past project using hypothesis testing and regression to turn data into a decision.

RegressionHypothesis TestingStatistical SignificanceDigitalOcean
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4
Machine Learning4 questions · ~34 min
Supervised vs Unsupervised LearningEasy

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffDigitalOcean
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5
Behavioral & Leadership10 questions · ~85 min
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6
More topics7 questions · ~60 min
Evaluate Whether a Model Is OverfittingMedium

How to tell if a model is overfitting by comparing training and validation behavior.

Cross-ValidationAUC-ROCAccuracyDigitalOcean
Define Metrics for New FeaturesMedium

Define a success metric for a new feature that captures real user value, not just raw usage.

MetricsFeature Prioritizationuser valueDigitalOcean
Diagnose a Metric Drop After LaunchMedium

Investigate why a key KPI moved the wrong way after a product change and separate signal from noise.

Lagging IndicatorsLeading IndicatorsDiagnosisDigitalOcean
Optimize a Machine Learning PipelineMedium

Tests your ability to improve end-to-end ML workflow performance and resource usage.

InfrastructureETLOrchestrationDigitalOcean
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The finish line: interview-readyComplete all 30 questions plus 2 hands-on drills to finish this plan.