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Question

What is the role of the namenode in HDFS?

a.

Storing data blocks

b.

Coordinating read and write requests

c.

Maintaining metadata and file system information

d.

Handling replication of data blocks

Posted under Big Data Computing

Answer: (c).Maintaining metadata and file system information Explanation:The namenode in HDFS is responsible for maintaining metadata and file system information.

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Q. What is the role of the namenode in HDFS?