________ NameNode is used when the Primary NameNode goes down.(a) Rack(b) Data(c) Secondary(d) None of the mentionedI have been asked this question by my college professor while I was bunking the class.The doubt is from Introduction to HDFS in division HDFS – Hadoop Distributed File System of Hadoop

________ NameNode is used when the Primary NameNode goes down.(a) Rack

1.	________ NameNode is used when the Primary NameNode goes down.(a) Rack(b) Data(c) Secondary(d) None of the mentionedI have been asked this question by my college professor while I was bunking the class.The doubt is from Introduction to HDFS in division HDFS – Hadoop Distributed File System of Hadoop
Answer» Right OPTION is (c) Secondary The BEST EXPLANATION: Secondary namenode is used for all TIME AVAILABILITY and reliability.

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