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Cohere Interview Questions

The questions to prepare for Cohere interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 4 questions + 1 drill · ~50 min
2
Coding4 questions · ~40 min
Longest Increasing SubsequenceHard
Practice

Find and reconstruct a longest strictly increasing subsequence using dynamic programming and binary search.

Dynamic ProgrammingArraysGreedyCohere
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3
Pipelines4 questions · ~40 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityCohere
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4
Strategy4 questions · ~40 min
Staying Current on Industry TrendsEasy

A practical approach for tracking industry trends, competitor moves, and market changes in a way that informs strategy decisions.

EstimationCompetitive AnalysisGrowth StrategyCohere
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5
Execution4 questions · ~40 min
Recover a Slipping ProjectMedium

Explain how you would diagnose and recover a project that is falling behind schedule without losing stakeholder trust.

Success CriteriaRoadmappingRisk AssessmentCohere
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6
Machine Learning4 questions · ~40 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 TradeoffCohere
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7
More topics26 questions · ~258 min
A/B Testing for Product FeaturesMedium

Explain how to design and evaluate an A/B test for a product feature, including metrics, MDE, sample size, and guardrails.

Hypothesis TestingStatistical SignificanceA/B TestingCohere
Common Pitfalls in Experiment ResultsHard

Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.

PeekingNovelty EffectSample Ratio MismatchCohere
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The finish line: interview-readyComplete all 50 questions plus 1 hands-on drill to finish this plan.