Your four-node cluster was originally purchased, installed, and configured three years ago. You recently added another four nodes to the cluster.
Now you want to remove two of the older nodes that are still accessible to be redeployed elsewhere in the data center. Which two are true regarding the procedure for removing one or more cluster nodes?
A.
The procedure requires that all commands be invoked from one of the surviving cluster nodes.
B.
All commands are run as root regardless of which nodes are used to invoke them.
C.
The procedure requires that some commands be invoked on the node or nodes to be removed and that some be invoked from all surviving cluster nodes.
D.
The procedure requires that some commands be invoked on the node or nodes to be removed and that some be invoked from one surviving cluster node.
E.
Some commands require that the name of the node or nodes to be removed are passed arguments, and some commands require the name of existing nodes to be passed