Assuming a cluster running HDFS, MapReduce version 2 (MRv2) on YARN with all settings
at their default, what do you need to do when adding a new slave node to a cluster?
A.
Add a new entry to /etc/nodes on the NameNode host.
B.
Restart the NameNode daemon.
C.
Increase the value of dfs.number.of.needs in hdfs-site.xml
D.
Restart the NameNode and ResourceManager deamons and resubmit any running jobs
E.
Nothing, other than ensuring that DNS (or /etc/hosts files on all machines) contains am
entry for the new node.
Explanation: