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HCL Hadoop Interview Questions

ProjectPro

billion USD, 95000 professionals across diverse nationalities in 31 countries- India’s original IT garage startup, HCL, uses a data driven methodology to migrate ETL jobs into corresponding hadoop jobs. HCL has adopted hadoop as a viable alternative to reduce cost and speed up processing. With an annual revenue of $6.5

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Hadoop Use Cases

ProjectPro

Hadoop is beginning to live up to its promise of being the backbone technology for Big Data storage and analytics. Companies across the globe have started to migrate their data into Hadoop to join the stalwarts who already adopted Hadoop a while ago. Hadoop runs on clusters of commodity servers.

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Recap of Hadoop News for February 2017

ProjectPro

News on Hadoop-February 2017 Big data brings breast cancer research forwards by 'decades'. Researchers analysed data of more than 28000 different genes and millions of images of 300,000 breast cancer cells and found that any cell shape changes caused by physical pressures on the tumours are converted into gene activity.

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The Evolution of Table Formats

Monte Carlo

The “legacy” table formats The data landscape has evolved so quickly that table formats pioneered within the last 25 years are already achieving “legacy” status. It was designed to support high-volume data exchange and compatibility across different system versions, which is essential for streaming architectures such as Apache Kafka.

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The Good and the Bad of Apache Spark Big Data Processing

AltexSoft

It has in-memory computing capabilities to deliver speed, a generalized execution model to support various applications, and Java, Scala, Python, and R APIs. Spark Streaming enhances the core engine of Apache Spark by providing near-real-time processing capabilities, which are essential for developing streaming analytics applications.

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100+ Big Data Interview Questions and Answers 2023

ProjectPro

Define Big Data and Explain the Seven Vs of Big Data. Big Data is a collection of large and complex semi-structured and unstructured data sets that have the potential to deliver actionable insights using traditional data management tools. How is Hadoop related to Big Data?

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SQL for Data Engineering: Success Blueprint for Data Engineers

ProjectPro

According to the 8,786 data professionals participating in Stack Overflow's survey, SQL is the most commonly-used language in data science. Despite the buzz surrounding NoSQL , Hadoop , and other big data technologies, SQL remains the most dominant language for data operations among all tech companies.