Why is Apache Spark faster than Apache Hadoop?
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Explain the hadoop configuration files at present?
What problems can be addressed by using Zookeeper?
What is safe mode in Hadoop?
What is a Secondary Namenode? Is it a substitute to the Namenode?
Can we call vms as pseudos?
What is cloudera and why it is used?
how is a file of the size 1 GB uncompressed
What do the master class and the output class do?
Explain the wordcount implementation via hadoop framework ?
What is a block and block scanner in HDFS?
What is Safemode in Apache Hadoop?
Why do we need a password-less ssh in fully distributed environment?