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DCI Solutions Interview Questions

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

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1
CodingStart here. 5 questions · ~45 min
2
Pipelines7 questions · ~63 min
Data Quality and Schema EvolutionMedium
Recently asked

Approach for handling schema changes and data quality checks in a high-volume data lake pipeline.

schema evolutionData ModelingQualityDCI Solutions
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3
System Design8 questions · ~72 min
Design an LLM Serving PlatformHard

Design an LLM serving system that balances latency, cost, scalability, and safety for production traffic.

Cold StartFeature StoreModel ServingDCI Solutions
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4
Execution10 questions · ~91 min
Choose Monolith or MicroservicesMedium

Evaluate the execution trade-offs between monoliths and microservices and explain how you would choose the right approach.

Trade-offsRisk AssessmentScope ManagementDCI Solutions
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5
Model Evaluation3 questions · ~27 min
Monitor Production Model PerformanceHard

Approach for monitoring a model in production and spotting drift, threshold issues, and calibration loss.

PrecisionAccuracyRecallDCI Solutions
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6
Technical Fundamentals6 questions · ~54 min
Version Control Tools and WhyEasy

Tests your understanding of collaborative workflows and traceability in software development.

CommunicationLeadershipOwnershipDCI Solutions
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7
More topics11 questions · ~100 min
Improve Support Satisfaction with RAGEasy

Design a support RAG assistant that raises CSAT while keeping hallucinations under 2%, resisting prompt injection, and meeting cost and latency limits.

Prompt EngineeringRAGLLM EvaluationDCI Solutions
Fixing Production Query TimeoutsMedium
Recently asked

Tests your ability to diagnose and optimize SQL performance under real production constraints.

Performance Tuningproduction environmentquery optimizationDCI Solutions
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.