The fencing function provided by an N8500 prevents split-brain from occurring. Which of the following
statements about fencing are correct? (Select 3 answers)

A.
Monitors GAB and checks the changes of cluster members.

B.
Ensures the single view of cluster members.

C.
Prevents multiple nodes from using a volume manger to access the shared storage.

D.
Automatically recovers the master node if the cluster becomes abnormal.