You administer a Windows HPC Server 2008 cluster. You have recently deployed 10 new nodes to the cluster. Users report that only seven of the new nodes function as part of the cluster. You discover that three new nodes are in the Unknown state. You need to find out the problem that has prevented the three nodes from joining the cluster. What should you do?

A.
Run the Connectivity diagnostics tool and view the results of the DNS Name Resolution test.

B.
Run the Connectivity diagnostics tool and view the results of the Internode Connectivity test.

C.
Run the System Configuration diagnostics tool and view the results of the Required Software Updates test.

D.
Run the System Configuration diagnostics tool and view the results of the Application Configuration test.