Your Hadoop cluster is configured with HDFS and MapReduce version 2 (MRv2) on YARN.
Can you configure a worker node to run a NodeManager daemon but not a DataNode
daemon and still have a function cluster?

A.
Yes. The daemon will receive data from the NameNode to run Map tasks

B.
Yes. The daemon will get data from another (non-local) DataNode to run Map tasks

C.
Yes. The daemon will receive Reduce tasks only

Explanation: