Does this lead to security issues?
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Can you explain how do ‘map’ and ‘reduce’ work?
Mention what is the use of Context Object?
What are watches?
What is Your Cluster size ?
Should we use RAID in Hadoop or not?
What is the difference between HDFS and NAS ?
On What concept the Hadoop framework works?
On what basis data will be stored on a rack?
How many instances of tasktracker run on a hadoop cluster?
Main Components of Hadoop?
Why do we use Hadoop?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
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