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Updated weekly · Last refresh Oct 17

Kumaran Systems Data Visualisation Specialist Interview Questions

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

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1
SQL & Data ManipulationStart here. 7 questions + 3 drills · ~86 min
Securing Dashboards With RLSMedium

Evaluates your approach to implementing secure, role-based access in Power BI.

data securityKumaran Systems
Calculated Columns vs MeasuresEasy

Assesses your foundational understanding of DAX modeling concepts.

Data ModelingKumaran Systems
Power BI Performance TuningMedium

Evaluates your troubleshooting and optimization techniques for slow Power BI reports.

Performance TuningKumaran Systems
Optimizing Queries for MillionsHard

Tests performance engineering skills for large-scale Power BI models and datasets.

Performance TuningData ModelingKumaran Systems
Migrating Cognos to Power BIMedium

Evaluates your migration experience and risk awareness when modernizing BI reporting.

migrationKumaran Systems
Truncate vs DeleteMedium
Practice
Practice drill

Explain how TRUNCATE and DELETE differ in row removal, transaction behavior, and identity handling.

database managementData Manipulationdata managementCCitiusTechSStandards AustraliaGGentrack
Second Highest Without AggregatesHard
Practice
Practice drill

Find the second highest salary in each department without using aggregate functions.

SubqueriesRankingSelf-JoinsCredit GenieDevoteamCisco Restaurant + Bar
Real-Time User Interaction SchemaMedium
Practice
Practice drill

Design a real-time Uber interaction schema and summarize each user's interaction activity, including users with no recorded events.

schema designdata managementdatabase designUber
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2
More topics4 questions · ~32 min
Prioritizing When Pages Get CrowdedMedium

Tests product sense for scoping, prioritization, and clarity in dashboard layouts.

Stakeholder ManagementFeature Prioritizationdashboard designKumaran Systems
Designing Dashboards From ScratchMedium

Evaluates your dashboard design process and visualization decision-making.

project experiencedashboard designKumaran Systems
Explaining Data Issues to StakeholdersMedium

Tests whether you can translate complex trends or data quality issues into clear business language and drive stakeholder alignment.

Data QualityStakeholder ManagementCommunicationKumaran Systems
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The finish line: interview-readyComplete all 11 questions plus 3 hands-on drills to finish this plan.