How will you merge the contents of two or more relations and divide a single relation into two or more relations?172
What are the file formats that Hive supports and can use be used for storage?
Where is the Mapper Output stored?
What is the input type/format in MapReduce by default?
What is 'Key value pair' in HDFS?
what are the steps involved in decommissioning removing
What are the different operational commands in HBase at record level and table level?
Explain the LOAD keyword in Pig script?
Explain the need for MapReduce while programming in Apache Pig?
Is there any difference between HBase datamodel and RDBMS datamodel?
What is a MapReduce Combiner?
Why do we need a new framework for handling big data?
Explain the Reducer's reduce phase?
What is the Job interface in MapReduce framework?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
What alternate way does HDFS provides to recover data in case a Namenode