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Updated weekly · Last refresh Oct 17

Robert Slack Data Analyst Interview Questions

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

25questions
~3htotal time
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1
SQL & Data ManipulationStart here. 6 questions + 3 drills · ~78 min
Solve Sparse SQL ProblemHard

Evaluates problem-solving under ambiguity and ability to ask the right clarifying questions.

Problem SolvingsqlRobert Slack
Join Types for Mixed DataMedium

Assesses practical SQL skills for data type handling and correct join logic.

string manipulationRobert Slack
SQL String Manipulation ReasoningMedium

Tests SQL string manipulation reasoning and ability to justify technical decisions.

Codingstring manipulationRobert Slack
Choosing Join TypesEasy

Tests SQL join understanding and applying it to real business data scenarios.

null handlingJoinsRobert Slack
Database Normalization for IntegrityMedium

Tests your understanding of normalization and how it prevents anomalies and improves integrity.

normalizationdatabase designdata integrityRobert Slack
Top Agents SQL QueryMedium
Practice
Practice drill

Find the highest-volume real estate agents for each month and include all agents tied for first place.

Date FunctionsRankingGroup ByRobert Slack
7-Day Rolling Average ConversionsMedium
Practice
Practice drill

Calculate daily Corsair campaign conversions and a calendar-based 7-day rolling average using aggregation and window functions.

Window FunctionsDate FunctionsRunning TotalsCorsairScientific ResearchRobert Slack
Diagnose SQL with Joins and Group ByHard
Practice
Practice drill

Correct a PostgreSQL join and aggregation so every EU player receives accurate RPG spend and purchase counts.

null handlingJoinsGroup ByPlayStation
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2
Behavioral & Leadership17 questions · ~136 min
Leading an End-to-End Analytics ProjectMedium

Tests ownership of an end-to-end analytics project, including cross-functional collaboration, technical judgment, and measurable business impact.

LeadershipOwnershipcollaborationRobert Slack
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3
More topics2 questions · ~16 min
Design Analytics Dashboard for Nontechnical UsersMedium

Design an analytics dashboard that helps nontechnical users understand performance and take action without getting lost in complexity.

User SegmentsUser Needsuser-centric designRobert Slack
Diagnosing Metric DropsMedium

Tests structured troubleshooting of metric changes using data and analytics reasoning.

root causeConversion RateDiagnosisRobert Slack

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