Define role of velocity in big data?
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Can you explain the core methods of a reducer?
Which database is best for big data?
What is the difference between cassandra, hadoop big data, mongodb, couchdb?
What are 3 core dimension of big data?
What are Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift?
what are the languages supported by apache spark for developing big data applications?
Explain how big is ‘big data’?
Define data lake?
What are basic steps to be performed while working with big data?
What is the procedure to recover a namenode when it is slow?
What are the steps to be followed to deploy a big data solution?
Name some of the important tools useful for Big Data analytics?