If datanodes increase, then do we need to upgrade namenode?
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What are the features of Standalone (local) mode?
What type of data hadoop can handle ?
Who are ‘Data Scientists’?
How can you set an arbitrary number of mappers to be created for a job in Hadoop?
Explain how can we check whether namenode is working or not?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
Explain is it possible to search for files using wildcards?
Can we deploye job tracker other than name node?
Explain InputSplit in Hadoop?
What does the file hadoop-metrics.properties do?
Can hadoop replace relational database?
What is pseudo-distributed mode?
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