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Updated weekly · Last refresh Oct 17

Ltimindtree Data Scientist Interview Questions

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

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1
NLPStart here. 6 questions · ~51 min
Fine-Tuning vs RAGMedium

Compare fine-tuning and RAG for grounded language model applications, including when to use each approach.

Language ModelsFeature EngineeringDeep LearningLtimindtree
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2
Machine Learning5 questions · ~43 min
Vanishing Gradients in Deep NetworksMedium

Explain vanishing gradients in deep networks and how residual connections, batch normalization, and activation choice improve training.

Neural NetworksDeep LearningGradient DescentLtimindtree
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3
System Design3 questions · ~26 min
Design a Low Latency Inference PlatformHard

Design a low latency ML inference platform for high-frequency online predictions with strict response times and evolving model features.

high-frequency requestslatencysystem architectureLtimindtree
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4
Behavioral & Leadership6 questions · ~51 min
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5
More topics9 questions · ~77 min
Design Test for New FeatureMedium

Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.

experiment designfeature evaluationA/B TestingLtimindtree
Interpreting Significance in ExperimentsMedium

Explain statistical significance in experiments and how p-values and confidence intervals guide interpretation.

Confidence IntervalsStatistical SignificanceP-ValuesLtimindtree
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 IndicatorsDiagnosisLtimindtree
Rolling 30-Day Average QueryMedium
Practice

Calculate Beyond Finance daily sign-ups and their 30-day rolling average using CTEs and window functions.

sql queryLtimindtree
Microservices and DockerizationMedium

Tests ability to apply microservices principles and package data science workloads for deployment.

technical experiencedeploymentmicroservicesLtimindtree
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
Second Highest Trader SalaryEasy
Practice
Recently asked
Practice drill

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

SubqueriesRankingSortingeClinicalWorksNNeenOpal CanadaInformatica
Optimizing Second-Highest Salary QueryMedium
Practice
Practice drill

Find the second-highest distinct salary and optimize the query for millions of employee records.

SubqueriesPerformance Tuninglarge datasetsLtimindtree
The finish line: interview-readyComplete all 29 questions plus 2 hands-on drills to finish this plan.