How would you check whether your NameNode is working or not?
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What is JPS? Why is it used in Hadoop?
Explain how does hadoop classpath plays a vital role in stopping or starting in hadoop daemons?
Why is Data Block size set to 128 MB in Hadoop?
What are the four basic parameters of a mapper?
What sorts of actions does the job tracker process perform?
What is job tracker role in hadoop?
Explain Hadoop streaming?
Mention what is the data storage component used by hadoop?
Can we deploye job tracker other than name node?
What is check pointing in hadoop?
What are the side effects of not running a secondary name node?
Can you give some examples of Big Data?
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