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Updated weekly · Last refresh Oct 17

EXL Service Data Visualisation Specialist Interview Questions

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

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1
SQL & Data ManipulationStart here. 25 questions + 3 drills · ~230 min
Using SQL Regex in SQL ServerMedium

Tests practical SQL Server pattern-matching and data transformation skills for visualization pipelines.

EXL Service
Tableau vs BigQuery vs SQLMedium

Assesses breadth of experience across Tableau, BigQuery, and SQL in end-to-end analytics workflows.

sqlEXL Service
Tableau Performance and SecurityHard

Tests Tableau performance troubleshooting and systematic root-cause analysis.

Performance TuningEXL Service
Complex DAX Time-Intelligence CalculationsHard

Tests advanced DAX skills for accurate time-based measures and reporting.

daxcalculationsEXL Service
SSIS Experience for ETLMedium

Tests ETL tooling experience and ability to support reliable data pipelines for EXL Service.

data integrationEXL Service
Manage Row-Level Security in Power BIMedium

Tests secure data access design using Power BI RLS patterns and governance.

data securitypower biEXL Service
Data Engineering Concepts and In-Depth SQL/PythonEasy
Practice
Practice drill

Summarize SQL concepts by interview round, including rounds without SQL topics and average planned depth.

JoinsData Manipulationdata engineeringEXL Service
SQL and Python Interview FocusMedium
Practice
Practice drill

Demonstrate SQL experience by summarizing completed work for active analysts while preserving analysts with no completed entries.

JoinsData ManipulationsqlEXL Service
SQL and Spark CodingMedium
Practice
Practice drill

Aggregate completed revenue and rank customers within each region, including customers with no qualifying orders.

JoinssqlsparkEXL Service
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2
Behavioral & Leadership7 questions · ~56 min
Deadline Pressure With Incomplete DataMedium

Tests prioritization under pressure, judgment with incomplete data, and ownership in delivering a decision despite ambiguity.

time managementDealing With AmbiguityPrioritizationEXL Service
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3
More topics1 question · ~8 min
Power BI Licensing ImpactMedium

Assesses understanding of Power BI licensing and how it affects deployment decisions for EXL Service projects.

power biEXL Service

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