what is the default replication factor in HDFS?
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What do you know about sequencefileinputformat?
Define a namenode?
Explain InputFormat?
What is unstructured data?
How many instances of tasktracker run on a hadoop cluster?
What is InputSplit and RecordReader?
What is formatting of the dfs?
Define a task tracker?
How is the distance between two nodes defined in Hadoop?
Explain how do ‘map’ and ‘reduce’ works?
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Mention what is the number of default partitioner in Hadoop?
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