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Interview Questions

Real questions from top companies Β· hard

700+ Easy450+ Medium650+ Hard
All CategoriesBehavioralSpark/Big DataSQLPython/CodingSystem Design/ArchitectureCloud/ToolsGeneral/Othereasymediumhard
661

How would you ensure data quality and integrity in a data pipeline? Discuss the steps you would take to validate and cleanse data.

System Design/Architecturehardjoinpartitionspark2.5 min read
Amazon
β†’
662

How would you ensure the system can handle millions of concurrent users?

System Design/Architecturehardjoinpartitionspark2.5 min read
Meesho
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663

How would you fetch data from an external API, and what AWS services would you use to build a scalable data pipeline?

System Design/Architecturehardjoinpartitionspark2.5 min read
EPAM
β†’
664

How would you fix a client's failing reporting pipeline suffering from performance bottlenecks?

System Design/Architecturehardjoinpartitionspark2.4 min read
BCG
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665

How would you handle late-arriving data in a real-time stream processing pipeline?

System Design/Architecturehardjoinpartitionspark2.4 min read
Swiggy
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666

How would you handle schema changes in a production ETL pipeline?

System Design/Architecturehardetljoinpartition2.4 min read
Swiggy
β†’
667

How would you handle schema evolution in a real-time data system?

System Design/Architecturehardjoinpartitionspark2.4 min read
Fragma Data Systems
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668

How would you implement a near real-time data pipeline for analyzing user behavior on the Adidas mobile app?

System Design/Architecturehardjoinpartitionspark2.4 min read
Adidas
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669

How would you implement data governance and security in your design?

System Design/Architecturehardjoinpartitionspark2.4 min read
McKinsey
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670

How would you manage a disagreement within your team about an ETL pipeline design?

System Design/Architecturehardetljoinpartition2.4 min read
Morgan Stanley
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671

How would you manage schema evolution in your data lake?

System Design/Architecturehardjoinpartitionspark2.4 min read
Microsoft
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672

How would you process Excel files with multiple sheets? Design the data pipeline.

System Design/Architecturehardjoinpartitionspark2.4 min read
Cognizant
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673

How would you schedule a recurring pipeline in Data Fusion?

System Design/Architecturehardjoinpartitionspark2.4 min read
Aarete
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674

How would you set up an alert system to monitor your ETL pipeline for failures or performance issues?

System Design/Architecturehardairflowetljoin2.4 min read
Meesho
β†’
675

How would you set up end-to-end tracing for a complex pipeline?

System Design/Architecturehardjoinpartitionspark2.4 min read
Capco
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676

How would you use monitoring tools to detect and resolve pipeline failures proactively?

System Design/Architecturehardjoinpartitionspark2.4 min read
Swiggy
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677

Identify potential bottlenecks in your pipeline design and propose solutions to mitigate them.

System Design/Architecturehardjoinpartitionspark2.4 min read
Puma
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678

Introduce your recent project, explaining its goal, architecture, tools, and technologies.

System Design/Architecturehardjoinpartitionspark2.3 min read
Citi
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