Which of the following statements describes fencing resources in a high availability cluster?

Which of the following statements describes fencing resources in a high availability cluster?
A . Fencing is the automated stop and restart of cluster services that suffer from software errors.
B . Fencing is the disconnection of a failed cluster node from any other cluster resources.
C . Fencing is the forwarding of incoming network connections to backend servers.
D . Fencing is the assignment of services to different cluster nodes to avoid interference of the services.
E . Fencing is the accounting and limitation of disk usage on shared storage.

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Answer: B