Compare Apache Hadoop and Apache Spark?
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Explain how Hadoop cluster hardware planning and provisioning is done?
Why Hadoop performs replication, although it results in data redundancy?
What is Combiner in Hadoop?
What jobtracker is in hadoop? What are the activities followed by hadoop?
Name the operating system(s) which are supported for production hadoop deployment?
Are there any special requirements for namenode?
List of the some best tools that can be useful for data-analysis?
Can you explain rack awareness?
Clarify what is sqoop in hadoop?
Explain edge nodes in hadoop?
What is the purpose of context object?
What daemons run on master nodes?
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