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ISHIR Data Engineer Interview Questions

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

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1
PipelinesStart here. 4 questions · ~32 min
Data Validation in ETL PipelinesMedium

Approach for validating ETL data with schema, business rule, and pipeline-level checks.

strategiesETLdata validationISHIR
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityISHIR
Unit vs Integration TestingMedium

Evaluates your understanding of testing layers for reliable backend data services.

ISHIR
Validating Data MigrationsMedium

Assesses your ability to anticipate and mitigate validation risks in large migrations.

data migrationISHIR
2
More topics1 question · ~8 min
Optimizing SQL Query PerformanceEasy

Explain how to improve SQL query performance using indexing, filtering, and execution plan analysis.

JoinsData WranglingAggregationsISHIR

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
SQL to Flag Partner Count MismatchesMedium
Practice
Practice drill

Compare partner-reported and internal daily counts, then flag discrepancies and show the prior comparison status.

JoinsData WranglingCase WhenGoogle
SQL for Backend ValidationMedium
Practice
Practice drill

Identify mismatches, missing records, and extra backend records by comparing two data sources.

data accuracyJoinsData WranglingAccenture
The finish line: interview-readyComplete all 5 questions plus 3 hands-on drills to finish this plan.