What is hadoop? Is there any future opportunities by learning this?

Answer 1

Hadoop is a collecion of open-source softwares, written in Java, that helps you managing networking in many computers and dealing with large amount of data and computations.
More info:
https://en.m.wikipedia.org/wiki/Apache_Hadoop

Answer 2

https://www.sololearn.com/Discuss/506175/?ref=app

https://www.sololearn.com/Discuss/1144449/?ref=app

https://www.sololearn.com/Discuss/1415015/?ref=app

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