How does big data help in increasing business revenue?
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Define data lake?
What are Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift?
How does A/B testing work?
Give a detailed overview about the big data being generated by facebook?
Define fsck?
Name the components of hdfs and yarn respectively
Where does Big Data come from?
Can you explain the core methods of a reducer?
Define role of value in big data?
What are the core components that are utilized in hadoop?
Is big data unstructured?
What is the future of Big Data trend?