Define data lake?
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What is the difference between cassandra, hadoop big data, mongodb, couchdb?
Define data lake?
Name the components of hdfs and yarn respectively
What is the connection between hadoop and big data?
List the five important v’s of big data.
Define taskinstance?
Can you define oozie?
Explain how do “reducers” communicate with each other?
What are the three characteristics of big data according to ibm?
What is Big Data?
Explain the first step in big data solutions.
Is big data unstructured?