What are active and passive "NameNodes"?
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What are the benefits of block transfer?
Can you tell us more about ssh?
What is HDFS block size and what did you chose in your project?
Explain what is sqoop in Hadoop ?
Explain the difference between NameNode
what are the nodes in the Hadoop cluster?
What is the difference between a Hadoop and Relational Database and Nosql?
What happens to a namenode, when job tracker is down?
What are combiners and its purpose?
Which are the three main hdfs-site.xml properties?
Name some companies that use Hadoop?
What is Disk Balancer in Apache Hadoop?