On which port does ssh work?
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What is rack-aware replica placement policy?
How is HDFS fault tolerant?
What are the default configuration files that are used in hadoop?
Explain the features of stand alone (local) mode?
Mention what are the data components used by Hadoop?
Explain use cases where SequenceFile class can be a good fit?
Define a datanode?
Whats is distributed cache in hadoop?
What infrastructure do we need to process 100 TB data using Hadoop?
Why are the number of splits equal to the number of maps?
What is salary of hadoop developer?
Who is a 'user' in HDFS?