Explain the difference between NameNode
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What are the four characteristics of Big Data?
What is Hadoop serialization?
What should be the ideal replication factor in Hadoop Cluster?
What is DistributedCache and its purpose?
Is secondary namenode a substitute to the namenode?
Do we need to give a password, even if the key is added in ssh?
Define a daemon?
How the Client communicates with HDFS?
Which command is used for the retrieval of the status of daemons running the hadoop cluster?
How blocks are distributed among all data nodes for a particular chunk of data?
On What concept the Hadoop framework works?
What are the most commonly defined input formats in Hadoop?