What is the difference between SQL and NoSQL?
What is HDFS ? How it is different from traditional file systems?
what are the steps involved in decommissioning removing
What is Apache Pig?
Different ways of debugging a job in MapReduce?
State the usage of 'filters', 'group' , 'orderBy', 'distinct' keywords in pig scripts?
What is UDF?
What is the meaning of speculative execution in Hadoop? Why is it important?
What is SequenceFileInputFormat?
what does the text input format do?
Is a job split into maps?
What are the components of Hive architecture?
What is RDD?
what are relational operations in pig latin?
How can we control particular key should go in a specific reducer?