You are a system administrator for your company. You install a 64-bit version of Windows Server 2008 Standard Edition and a set of company standard applications on a new server. You install HPC Pack 2008 and configure a head node for a new Windows HPC Server 2008 cluster. You are unable to submit commands to the cluster from the command-line tools because of an authentication error. However, you are able to communicate with the cluster by using Windows PowerShell and the HPC Management Console. You need to resolve the authentication error. What should you do?

A.
Restart the HPC Management Service on the head node.

B.
Reset the password for the computer account of the head node.

C.
Enable firewall exception for the TCP port 5802 on the head node.

D.
Ensure that the HPC Job Scheduler service is able to listen to the TCP port 5800 on the head node.