How can one check whether NameNode is working or not?
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How ordering in hdfs is finished?
What are the port numbers of namenode?
How can native libraries be included in yarn jobs?
Give a brief overview of Hadoop history?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
What is the block size in Hadoop?
What is the key difference between NameNode and DataNode in Hadoop?
What are the Hadoop features extended to its eco-system components ?
How namenode handles data node failures?
What is the default replication factor in Hadoop and how will you change it?
Can hadoop replace relational database?
List of the some best tools that can be useful for data-analysis?
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