Dataford
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Top 8
Prep plan
Updated weekly · Last refresh Oct 17

Exl Data Visualisation Specialist Interview Questions

The questions to prepare for a Exl Data Visualisation Specialist interview. Questions from real interview reports rank first. Updated daily.

8questions
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1
SQL & Data ManipulationStart here. 5 questions + 3 drills · ~70 min
Tableau Performance and SecurityHard

Tests Tableau performance troubleshooting and systematic root-cause analysis.

Performance TuningExl
Tableau, BigQuery, and SQLMedium

Assesses breadth of tooling across Tableau, BigQuery, and SQL for client-ready analytics.

sqlExl
Power BI and SQL QueryingMedium

Evaluates your ability to connect SQL query logic to effective Power BI reporting.

sqlpower biExl
Power BI Fundamentals with SQLEasy

Evaluates foundational Power BI and SQL skills needed to deliver reliable dashboards.

sqlpower biExl
SQL Server Regex QueriesMedium

Assesses practical SQL Server pattern-matching skills for data cleaning and transformation.

sqlExl
SQL for Running AverageMedium
Practice
Recently asked
Practice drill

Calculate five-day rolling service averages using daily aggregation, a calendar join, and PostgreSQL window functions.

queriessqlExlEXL ServicevvConstruct
Complex Joins and Window PerformanceHard
Practice
Recently asked
Practice drill

Rewrite a slow multi-table revenue query using pre-aggregation, window functions, and PostgreSQL performance techniques.

aggregationdatabase optimizationJoinsExl
Optimize a Slow SQL QueryHard
Practice
Recently asked
Practice drill

Rewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.

database optimizationJoinsData WranglingAmeripriseEEltro Cyberchrome PrivateEnergyHub

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2
Behavioral & Leadership3 questions · ~24 min
Explaining Insights to StakeholdersMedium

Tests clarity, storytelling, and stakeholder communication for data-driven decisions at Exl.

Stakeholder ManagementCommunicationExl
Fixing Production Dashboard ErrorsMedium

Tests debugging, incident response, and quality controls for production dashboards at Exl.

error handlingproductionExl
Adapting to Changing RequirementsMedium

Tests prioritization, change management, and delivery discipline when requirements shift at Exl.

adaptabilityProject ManagementExl
The finish line: interview-readyComplete all 8 questions plus 3 hands-on drills to finish this plan.