Top 50

Topic roadmap

Updated weekly · Last refresh Nov 2

Top 50 data integration Interview Questions

The most frequently asked data integration questions across all roles and companies, ranked by real interview frequency. Updated daily.

50questions

~7htotal time

88companies covered

Track your progressSign up free to work through all 50 questions and resume where you left off.

Start practicing free →

PipelinesStart here. 43 questions · ~365 min

Multi-Cloud IAM for PipelinesMedium

Recently asked

Approach for keeping IAM policies consistent across data pipelines running in multiple clouds.

data integrationSecurityCloud

NTT DATA

Pluralsight

GEICO

Legacy Database to Observability PlatformMedium

Explain how to connect a legacy on premises database to a cloud observability platform, including API protocol and security choices.

data integrationAPIsobservability

NiCE

Airbus Helicopters

Stellantis

Implement CDC in Data IngestionHard

Recently asked

Design a reliable CDC ingestion process covering capture, ordering, schema evolution, replay, deduplication, monitoring, and backfills.

data integrationdata pipelineETL

Snowflake

Bcforward

Optum

Structure a Data PipelineHard

Recently asked

Design a reliable ETL pipeline that integrates diverse source systems into Salesforce and Salesforce Data Cloud.

Data Qualitydata integrationdata pipelinesFFirst Advantage

Novalink Solutions

Salesforce

Migrate Legacy Data to AI-ReadyHard

Design a controlled migration from legacy data systems to governed, scalable pipelines that support trusted AI workloads.

Data Qualitydata integrationdata migration

Accenture

StubhubCCursor

More Pipelines questions with a free account

System Design3 questions · ~25 min

More System Design questions with a free account

More topics4 questions · ~34 min

Many-to-Many Efficient JoinsMedium

Practice

Aggregate relationships between two large datasets without double-counting duplicate many-to-many links.

data integrationdata relationshipslarge datasetsEEkimetrics

Troubleshooting Data Integration IssuesMedium

Practice

Reconcile records from two systems and classify missing records, amount differences, and status discrepancies.

data integrationnull handlingJoins

Autodesk

Reconciling Data Across SystemsEasy

Recently asked

Tests ownership and stakeholder management when extracting and reconciling data from multiple systems under business pressure.

data integrationtechnical experiencedata extraction

Zoetis

OracleBBlazeSoft

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan

Hands-on SQL practiceWrite and run real queries in the editor. 1 drill · ~10 min

Monthly Sales Trends by CategoryMedium

Practice

Recently asked

Practice drill

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

InfrastructureToolsData Wrangling

Total Wine & More

Inc.

Benjamin Moore

The finish line: interview-readyComplete all 50 questions plus 1 hands-on drill to finish this plan.