What is speculative execution in Hadoop?
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What happens to job tracker when namenode is down?
Explain what is sqoop in Hadoop ?
Is map like a pointer?
What is the difference between HDFS and NAS ?
What is Partioner in hadoop? Where does it run
Is client the end user in HDFS?
Mention what is the number of default partitioner in Hadoop?
What is DistributedCache and its purpose?
What are the different types of Znodes?
How is the option in Hadoop to skip the bad records?
What is inputformat in hadoop?
What is IdentityMapper?
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