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Top Big Data Interview Questions for 2025

Pickl AI

Introduction Big Data continues transforming industries, making it a vital asset in 2025. Variety Data comes in multiple forms, from highly organised databases to messy, unstructured formats like videos and social media text. Explain the Role of Apache HBase. What is Apache Kafka, and Why is it Used?

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Discover the Most Important Fundamentals of Data Engineering

Pickl AI

They are responsible for building and maintaining data architectures, which include databases, data warehouses, and data lakes. Data Modelling Data modelling is creating a visual representation of a system or database. Physical Models: These models specify how data will be physically stored in databases. from 2025 to 2030.

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A Comprehensive Guide to the main components of Big Data

Pickl AI

According to a report by Statista, the global data sphere is expected to reach 180 zettabytes by 2025 , a significant increase from 33 zettabytes in 2018. This includes structured data (like databases), semi-structured data (like XML files), and unstructured data (like text documents and videos).

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A Comprehensive Guide to the Main Components of Big Data

Pickl AI

According to a report by Statista, the global data sphere is expected to reach 180 zettabytes by 2025 , a significant increase from 33 zettabytes in 2018. This includes structured data (like databases), semi-structured data (like XML files), and unstructured data (like text documents and videos).

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Predicting the Future of Data Science

Pickl AI

This explosive growth is driven by the increasing volume of data generated daily, with estimates suggesting that by 2025, there will be around 181 zettabytes of data created globally. Apache Kafka), organisations can now analyse vast amounts of data as it is generated. billion by 2026, growing at a CAGR of 27.7%.