What is big data concept?
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What is the future of Big Data trend?
Define role of velocity in big data?
What are some of the different modes used in hadoop.
Give a detailed overview about the big data being generated by facebook?
Define big data analytics?
What are Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift?
What is the difference between cassandra, hadoop big data, mongodb, couchdb?
Explain how do “reducers” communicate with each other?
Define fsck?
What are the essential hooping tools that improve performance? Big data?
Define role of value in big data?
Define role of volume in big data?