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Updated weekly · Last refresh Sep 23

Zeta Data Analyst Interview Questions

The questions to prepare for a Zeta Data Analyst interview. Questions from real interview reports rank first. Updated daily.

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1
Window FunctionsStart here. 2 questions · ~21 min
Rolling Averages With Window FunctionsMedium
Practice

Calculate three-observation rolling revenue averages for active Zeta campaigns using aggregation and window functions.

Window Functionssql queryZeta
RANK vs DENSE_RANK in LeaderboardsEasy

Explain how RANK() and DENSE_RANK() handle ties differently in ordered SQL results such as leaderboards.

Window FunctionsRankingData WranglingZeta

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2
SQL & Data Manipulation1 question + 2 drills · ~30 min
Aggregates With Conditional FilteringMedium

Evaluates ability to write correct SQL aggregations with WHERE or HAVING logic.

Zeta
SQL for Funnel SegmentsMedium
Practice
Practice drill

Rank user segments by multi-step funnel conversion using aggregation, joins, CTEs, and a window function.

User SegmentsJoinssql queryZeta
Rolling Average with SQL WindowsMedium
Practice
Practice drill

Calculate each active RpmGlobal Enterprise Planning user's 30-day rolling average of daily activity.

TavantRpmglobalTwo Six Technologies
3
Joins1 question · ~10 min
Joining to Find Missing RecordsMedium

Assesses SQL join strategy and handling of missing matches.

Joinssql querydata integrityZeta
4
Performance Tuning1 question · ~10 min
Optimize Slow SQL QueriesMedium

Tests query tuning skills using execution plans, indexing, and rewrite strategies.

Performance Tuningquery optimizationdatabasesZeta
The finish line: interview-readyComplete all 5 questions plus 2 hands-on drills to finish this plan.