Define the consistency levels for read operations in Cassandra?
Is it possible to rename the output file?
Why lazy evaluation is good in spark?
what is difference between pig and sql?
What is the difference between cache and persist in spark?
What is the use of Combiner?
What is a distributed cache in mapreduce framework?
What are the benefits of NoSQL over relational database?
Explain fullOuterJoin() operation in Apache Spark?
Explain the basic difference between traditional rdbms and hadoop?
Explain about the different complex data types in Pig?
What do you mean by Schema Declaration?
What is mapreduce algorithm?
what are the basic parameters of a Mapper?