Which are the three modes in which hadoop can be run?
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What mode(s) can hadoop code be run in?
What is configured in /etc/hosts and what is its role in setting Hadoop cluster?
How to add/delete a Node to the existing cluster?
Explain what is a task tracker in hadoop?
Explain Hadoop Archives?
What are some typical functions of Job Tracker?
What is TextInputFormat in Hadoop?
What is the most widely recognized info formats characterized in hadoop?
What do you understand by standalone (or local) mode?
What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?
Explain small file problem in hadoop
How would you check whether your NameNode is working or not?
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