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8 branches of analytics, product and AI interview questions
Explore eight skill tracks, called branches, filterable by subtopic, company, tool and difficulty. SQL questions run against sample tables, choice and numeric answers are checked instantly, and written cases are scored against evaluation criteria.
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3 questions
Signup to purchase funnel
ProBuild a three-step funnel from an events table with conversion rates.
Live SQL · Funnels · PostgreSQL · 18 min · Hard
SQL & Data Modeling · Original Uplift question
Sessionize events with a 30-minute gap
ProCreate sessions separately for each user.
Live SQL · Funnels · PostgreSQL · 25 min · Hard
SQL & Data Modeling · Original Uplift question
Week-one retention by signup cohort
Group users by Monday-starting signup week.
Live SQL · Funnels · PostgreSQL · 20 min · Medium
SQL & Data Modeling · Original Uplift question