A ________ serves as the master and there is only one NameNode per cluster.(a) Data Node(b) NameNode(c) Data block(d) ReplicationThis question was posed to me by my school teacher while I was bunking the class.This interesting question is from Introduction to HDFS topic in division HDFS – Hadoop Distributed File System of Hadoop

A ________ serves as the master and there is only one NameNode per clu

1.	A ________ serves as the master and there is only one NameNode per cluster.(a) Data Node(b) NameNode(c) Data block(d) ReplicationThis question was posed to me by my school teacher while I was bunking the class.This interesting question is from Introduction to HDFS topic in division HDFS – Hadoop Distributed File System of Hadoop
Answer» CORRECT option is (B) NameNode To elaborate: All the metadata related to HDFS including the INFORMATION about data NODES, files STORED on HDFS, and Replication, etc. are stored and maintained on the NameNode.

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