How would you restart NameNode?
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Is nosql follow relational db model?
What is the logistic regression?
What are the core methods of a Reducer?
Explain what is storage and compute nodes?
What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?
Where are hadoop’s configuration files located and list them?
What is Reducer in Hadoop?
What are the limitations of Hadoop?
What is fsck?
Explain how can you check whether namenode is working beside using the jps command?
What does hadoop-env.sh do?
Name the files which are used by the startup and shutdown commands?
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