What is Rack awareness?
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What happens in a textinputformat?
On which port does ssh work?
How hdfa differs with nfs?
What do shuffling do?
Is map like a pointer?
How to enable/configure the compression of map output data in hadoop?
How is hadoop different from other data processing tools?
What is keyvaluetextinputformat?
Explain what is the purpose of RecordReader in Hadoop?
What is DistributedCache and its purpose?
If a data Node is full how it's identified?
Is fs.mapr.working.dir a single directory?
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