Which of the following is the correct statement?
A)datanode is the slave/worker node and holds the user data in the form of data blocks
B)each incoming file is broken into 32 mb by defaul
C)namenode stores user data in the form of data blocks
D)none of the above

Question

Quizplus · Accepted Answer

A) is correct because in Hadoop's HDFS architecture, the DataNode is indeed the slave/worker node responsible for storing the actual data in blocks. The NameNode, on the other hand, manages the file system namespace and controls access to files by clients but does not store the actual data. B) is incorrect because the default block size in HDFS is 128 MB (in Hadoop 2.x and later versions), not 32 MB. C) is incorrect because the NameNode does not store user data in data blocks; it stores metadata about where data blocks are located.

Which of the Following Is the Correct Statement