DCI Solutions Interview Questions
The questions to prepare for DCI Solutions interviews, across all roles. Questions from real interview reports rank first. Updated weekly.
Find two indices in an array whose values add up to a target using a hash map.
DCI SolutionsReverse a string in Python using character traversal and return the reversed result.
DCI SolutionsApproach for handling schema changes and data quality checks in a high-volume data lake pipeline.
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Evaluate the execution trade-offs between monoliths and microservices and explain how you would choose the right approach.
DCI SolutionsDesign an LLM serving system that balances latency, cost, scalability, and safety for production traffic.
DCI SolutionsApproach for monitoring a model in production and spotting drift, threshold issues, and calibration loss.
DCI SolutionsDesign a support RAG assistant that raises CSAT while keeping hallucinations under 2%, resisting prompt injection, and meeting cost and latency limits.
DCI SolutionsTests your ability to diagnose and optimize SQL performance under real production constraints.
DCI SolutionsAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
Total Wine & More
Inc.
Benjamin MooreUse joins, CTEs, and row ranking to resolve conflicting customer profile values across ACME House systems.
Ramsey Solutions
ACME HouseReconcile billing and ERP invoice totals using joins, a CTE for latest snapshots, and CASE-based discrepancy classification.
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