Explain the core components of hadoop?
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Can Apache Kafka be used without Zookeeper?
Input Split & Record Reader and what they do?
What is commodity hardware?
What is a 'block' in HDFS?
What is Hadoop streaming?
What is the main purpose of HDFS fsck command?
Explain what if rack 2 and datanode fails?
What is IdentityMapper?
What is the default replication factor?
Is hadoop based on google mapreduce?
What is nlineoutputformat?
What are the additional benefits YARN brings in to Hadoop?
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