NPCI Data Scientist Interview Questions
The questions to prepare for a NPCI Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
NPCICompare Random Forest and Gradient Boosting, then choose the right ensemble for a supervised learning task.
NPCIExplain a practical framework for feature engineering, from raw data review to validation of feature impact on held-out data.
NPCIOutline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.
NPCIExplain what statistical significance means and why it matters when interpreting experimental or analytical results.
NPCIApproach for handling missing data in an ML data pipeline, including validation, imputation, and safe downstream consumption.
NPCIEvaluates your ability to interpret regression metrics and account for model complexity.
NPCITests your mastery of advanced SQL patterns for analytics and feature creation.
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Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.
eClinicalWorks
Informatica
Spectraforce TechnologiesFind the second-highest distinct transaction amount using a subquery in PostgreSQL without LIMIT.
Capgemini FSSBU
FreechargeNPCIUse joins, CTEs, and aggregations to find the weakest step in an onboarding funnel and estimate lost conversions.
Atlassian
Revolut