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Accenture España Data Scientist Interview Questions

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

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1
System DesignStart here. 3 questions · ~26 min
Design a Real-Time ML Feature StoreHard

Design a shared feature store for training and low-latency inference across many ML systems with strict freshness and consistency needs.

Feature StoreFeature DriftModel ServingAAccenture España
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2
Machine Learning3 questions · ~26 min
Preprocessing Data With Missing ValuesMedium

Explain how to preprocess missing data for a supervised learning task without introducing leakage or degrading model quality.

Cross-ValidationFeature EngineeringSupervised LearningAAccenture España
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3
Behavioral & Leadership6 questions · ~53 min
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4
More topics8 questions · ~70 min
SQL Window Function RankingEasy
Practice

Rank customers by total revenue within each region using a window function.

Window FunctionsRankingGroup ByAAccenture España
Evaluating Observed Lift SignificanceMedium

Explain how to test whether an observed experiment lift is real using hypothesis testing, p-values, and confidence intervals.

Confidence IntervalsStatistical SignificanceP-ValuesAAccenture España
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 TestingAAccenture España
Define Feature Success MetricsMedium

Framework for choosing a feature's primary success metric and guardrails before launch.

MetricsFeature PrioritizationProduct VisionAAccenture España
Diagnose KPI Drop After ReleaseMedium

Diagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.

KPILeading IndicatorsDiagnosisAAccenture España
Python Data EDA LibrariesMedium

Tests practical data tooling choices and strategies for memory-efficient analysis.

memory leakData Manipulationpython basicsAAccenture España
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
Second Highest Trader SalaryEasy
Practice
Practice drill

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSortingeClinicalWorksInformaticaSpectraforce Technologies
Top Daily Rides by VehicleMedium
Practice
Practice drill

Rank the top 3 completed rides per vehicle per day using joins, a CTE, and ROW_NUMBER.

Window FunctionsJoinsData WranglingWaymo
The finish line: interview-readyComplete all 20 questions plus 2 hands-on drills to finish this plan.