Define a job tracker?
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Explain what is sqoop in Hadoop ?
What is the functionality of jobtracker in hadoop?
Explain what happens in textinformat ?
Are Namenode and job tracker on the same host?
How do you categorize a big data?
What does /etc /init.d do?
what is the default replication factor in HDFS?
What is Your Cluster size ?
What happens in a textinputformat?
What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?
What is HDFS Block size? How is it different from traditional file system block size?
Explain InputFormat?
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