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Top Big Data Interview Questions for 2025

Pickl AI

Familiarise yourself with essential tools like Hadoop and Spark. Variety Data comes in multiple forms, from highly organised databases to messy, unstructured formats like videos and social media text. What are the Main Components of Hadoop? What is the Role of a NameNode in Hadoop ? What is a DataNode in Hadoop?

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What are the Biggest Challenges with Migrating to Snowflake?

phData

Ensuring a seamless transition while accommodating business requirements, security considerations, and performance optimizations further complicates the information architecture setup during the migration process to Snowflake. Once the information architecture is created on paper, the work of implementing it can be equally challenging.

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