Explain how can we check whether namenode is working or not?
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What is the difference between an inputsplit and a block?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
Can we use windows for hadoop?
What is fsck?
Where is hadoop-env.sh file present?
What is Mapper in Hadoop?
How jobtracker assign tasks to the tasktracker?
Can we deploy job tracker other than name node?
How Hadoop is cost-effective?
Name the operating system(s) which are supported for production hadoop deployment?
What is the difference between namenode and datanode in hadoop?
What is JobTracker?
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