What is unstructured data?
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What is Disk Balancer in Apache Hadoop?
What is safe mode in Hadoop?
What are the problems with Hadoop 1.0?
What hadoop does in safe mode?
Explain InputFormat?
Can Hadoop be compared to NOSQL database like Cassandra?
Which is the best hadoop certification?
What is NoSQL?
Define a combiner?
Explain how input and output data format of the hadoop framework?
Why is Apache Spark faster than Apache Hadoop?
Does Hadoop requires RAID?
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