what is the default replication factor in HDFS?
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What is IdentityMapper?
What are the two main components of ResourceManager?
What is the relation between job and task in hadoop?
What is a heartbeat in HDFS?
Explain the basic difference between traditional rdbms and hadoop?
Can Apache Kafka be used without Zookeeper?
Explain the features of stand alone (local) mode?
What is unstructured data?
Define streaming?
What are the hadoop's three configuration files?
Why the name ‘hadoop’?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
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