Top 15
Prep plan
Updated weekly · Last refresh Aug 30

Qlik Data Scientist Interview Questions

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

15questions
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1
Machine LearningStart here. 3 questions · ~24 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 TradeoffQlik
Handling Missing Data in MLMedium

Explain practical strategies for handling missing data and how to validate that the chosen approach improves model performance.

Feature EngineeringData WranglingSupervised LearningQlik
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2
Statistics & Probability3 questions · ~24 min
Linear Regression AssumptionsEasy

Tests understanding of core statistical assumptions for reliable linear regression inference.

RegressionCorrelationCausal InferenceQlik
Explain Stats to Non-TechnicalMedium

Tests communication skills and ability to translate analytics into business language.

Confidence IntervalsRegressionCorrelationQlik
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3
Metrics3 questions · ~24 min
Investigate Sales DropMedium

Tests structured diagnostic analysis, hypothesis building, and translating findings into next steps.

Funnel AnalysisKPIsDiagnosisQlik
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4
More topics6 questions · ~48 min
Choosing Classification Evaluation MetricsEasy

Explain which classification metrics to use and how metric choice depends on the business objective and error tradeoffs.

PrecisionAccuracyRecallQlik
Prioritize User Problems with DataMedium

Framework for using product data to identify and prioritize the user problem that should be solved first.

Feature PrioritizationUser NeedsPain PointsQlik
Optimize a Database QueryHard

Tests skills in diagnosing and improving query performance for large-scale analytics workloads.

SubqueriesJoinsAggregationsQlik
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 15 questions plus 3 hands-on drills to finish this plan.