What is zookeeper in hadoop?
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Name the examples of some companies that are using hadoop structure?
What is the default replication factor?
On What concept the Hadoop framework works?
What are the basic available commands in Hadoop sqoop ?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
What is a 'block' in HDFS?
Name some companies that use Hadoop?
Explain the core components of hadoop?
How do you define "block" in HDFS?
Which are the three main hdfs-site.xml properties?
Is map like a pointer?
How many Daemon processes run on a Hadoop system?
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