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Why would nosql be better than using a sql database? And how much better is it?
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Compare Hadoop and RDBMS?
Which operating system(s) are supported for production hadoop deployment?
What are the side effects of not running a secondary name node?
List out some common problems faced by data analyst?
How to create the directory when name node is in safe mode?
What is the key difference between NameNode and DataNode in Hadoop?
Is hadoop still in demand?
Explain the core methods of the reducer?
What is the logistic regression?
If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?
What are the different commands used to startup and shutdown Hadoop daemons?
If DataNode increases, then do we need to upgrade NameNode in Hadoop?
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