Can Hadoop be compared to NOSQL database like Cassandra?
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Explain the difference between NameNode
What is safe mode in Hadoop?
What are the core components of Apache Hadoop?
How do you categorize a big data?
Main Components of Hadoop?
What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
Can NameNode and DataNode be a commodity hardware?
Is hadoop based on google mapreduce?
Explain a simple Map/Reduce problem.
What is cloudera and why it is used?
What is a heartbeat in HDFS?
What will you do when NameNode is down?
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