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General Motors (GM) Interview Questions

The questions to prepare for General Motors (GM) interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 5 questions · ~51 min
Maximum Subarray SumEasy
Practice

Compute the largest sum of any contiguous subarray using Kadane's algorithm in O(n) time.

Dynamic ProgrammingArraysGreedyGeneral Motors (GM)
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2
SQL & Data Manipulation4 questions + 1 drill · ~51 min
Running 30-Day Active Users SQLMedium
Practice

Calculate rolling 30-day distinct OnStar users using a deduplication window function and date-range aggregation.

Window FunctionssqlGeneral Motors (GM)
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
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3
Machine Learning5 questions · ~51 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 TradeoffGeneral Motors (GM)
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4
Strategy4 questions · ~41 min
Tell Me About YourselfEasy

Tests your ability to deliver a clear, relevant introduction tailored to the role at Aqr.

Competitive AnalysisGo-to-MarketGeneral Motors (GM)
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5
Pipelines5 questions · ~51 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityGeneral Motors (GM)
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6
Execution5 questions · ~51 min
Handle Scope Changes Mid-DevelopmentMedium

Explain how you manage scope changes during development without losing delivery control, stakeholder alignment, or product quality.

AgileScope ManagementProject ManagementGeneral Motors (GM)
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7
More topics22 questions · ~226 min
Find Pain Points from FeedbackMedium

Use customer feedback to identify the biggest pain points in the user journey.

User ResearchUser NeedsPain PointsGeneral Motors (GM)
Primary vs Guardrail MetricsEasy

Explain how a primary metric differs from a guardrail metric and how both are used in A/B test decisions.

ExperimentationGuardrail MetricsA/B TestingGeneral Motors (GM)
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