Explain the important tools useful for big data?
What is a relation in Pig?
What is the difference between RDBMS with Hadoop MapReduce?
How many ways we can create rdd in spark?
What is the difference between an inputsplit and a block?
Explain HCatOutputFormat?
What is the relationship between Hadoop, HBase, Hive and Cassandra ?
Explain about the common workflow of a Spark program?
What main configuration parameters are specified in mapreduce?
What is the role of Spark Driver in spark applications?
When to use explode in Hive?
What is Input Split in hadoop?
Is hadoop obsolete?
What is the feature that they have added in the latest release?
What is the usage of foreach operation in Pig scripts?