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Prep plan
Updated weekly · Last refresh Aug 30

Larsen & Toubro Consultant Interview Questions

The questions to prepare for a Larsen & Toubro Consultant interview. Questions from real interview reports rank first. Updated weekly.

50questions
~7htotal time
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1
ExecutionStart here. 32 questions · ~256 min
Choosing Monolith vs MicroservicesMedium

Explain how you would decide between a monolith and microservices for a new engineering initiative.

Trade-offsRisk AssessmentScope ManagementLarsen & Toubro
Communicate a Critical Project DelayEasy

Explain how you communicated a project delay to an important stakeholder while preserving trust and resetting the plan.

Launch PlanningTrade-offsRisk AssessmentLarsen & Toubro
Migrate Monolith to MicroservicesHard

Plan a zero-downtime migration from a legacy monolith to microservices while managing risk, sequencing, and stakeholder pressure.

Trade-offsRoadmappingRisk AssessmentLarsen & Toubro
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2
Product Sense8 questions · ~64 min
Lead Process Discovery WorkshopsEasy

Framework for running discovery workshops that map current-state workflows and surface the most important user pain points.

User ResearchPain PointsUse CasesLarsen & Toubro
Define User Needs FirstEasy

Framework for uncovering user needs, pain points, and the core problem before moving into product or UX solutions.

User ResearchUser NeedsPain PointsLarsen & Toubro
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3
SQL & Data Manipulation6 questions + 3 drills · ~78 min
Optimizing Slow SQL QueriesMedium

Tests your ability to diagnose and improve SQL performance using query and indexing strategies.

Window FunctionsJoinsAggregationsLarsen & Toubro
Optimize Slow Legacy SQLMedium

Tests your SQL performance tuning process for legacy systems.

JoinsData WranglingAggregationsLarsen & Toubro
Database Schema for ScalabilityMedium

Tests your data modeling decisions for scalability, performance, and maintainability.

JoinsCTEsData ModelingLarsen & Toubro
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
Top Customers by Net SalesMedium
Practice
Practice drill

Compute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.

SubqueriesJoinsData WranglingGain DigitalTCSZest AI
Find Spending Variance Drivers by DepartmentHard
Practice
Practice drill

Use joins and LAG to isolate departments driving a large month-over-month spending variance.

JoinsData WranglingGroup ByState of CaliforniaUniversity of ChicagoThe Church of Jesus Christ of Latter-day Saints
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4
Behavioral & Leadership4 questions · ~32 min
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.