What is the InputFormat ?
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Define fault tolerance?
Is secondary namenode a substitute to the namenode?
What is Input Split in hadoop?
Why password is needed in ssh localhost?
Define a task tracker?
Explain what is the purpose of RecordReader in Hadoop?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
what is SPF?
Why do we use Hadoop?
Does hadoop always require digital data to process?
Can you tell us more about ssh?
Define a metadata?
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