What role does the NameNode play in HDFS?

What is the core storage layer in the Hadoop architecture?

A. HDFS

B. MapReduce

C. YARN

D. ZooKeeper

In Hadoop, what does the term "DataNode" represent?

A. Manages computation resources

B. Stores and manages data blocks

C. Executes MapReduce jobs

D. Manages HDFS metadata

What role does the NameNode play in HDFS?

A. Manages computation resources

B. Stores and manages data blocks

C. Manages metadata of HDFS

D. Executes MapReduce jobs

What is the primary purpose of the Hadoop YARN ResourceManager?

A. Manages computation resources

B. Manages storage layer

C. Executes MapReduce jobs

D. Manages Hadoop ecosystem tools