ProcDNA Interview Questions
The questions to prepare for ProcDNA interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Demonstrate how INNER JOIN and FULL OUTER JOIN handle matching and unmatched rows.
Task A reporting query at a commerce platform summarizes recent orders for active customers, but the production version is slow. Write a PostgreSQL query t...
Explain how to profile, clean, and standardize missing or dirty data before analysis.
Explain how you would optimize a slow SQL query and verify the result set stays correct.
FilevineTests self-awareness, ownership, and growth mindset through specific examples of a professional strength and an actively managed weakness.
Tests how candidates prioritize, communicate, and maintain accuracy when facing pressure.
Tests conflict resolution, listening, accountability, and the ability to reach a productive outcome with a teammate.
Tests accountability, adaptability, judgment, and ownership when navigating a difficult workplace situation.
Design Hotstar's ML system for routing and prioritizing high-volume streaming requests under tight latency and reliability constraints.
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