Explain the wordcount implementation via hadoop framework ?
Is hadoop a database?
What are the limitations of importing RDBMS tables into Hcatalog directly?
Give the use of the bootstrap panel.
On which port does ssh work?
What are watches?
explain Metadata in Namenode?
What is MapFile?
What is a heartbeat in HDFS?
Can NameNode and DataNode be a commodity hardware?
What is Apache Hadoop? Why is Hadoop essential for every Big Data application?
Does this lead to security issues?
What is the difference between SQL and NoSQL?