You have a System Center 2012 Virtual Machine Manager (VMM) infrastructure that contains a
server named Server1. A user named User1 attempts to add a Hyper-V host named Server2 to the
fabric. User1 enters the IP address of Server2 and receives the following error message: “Access has
been denied while contacting the server Server2.” You verify that User1 is assigned the Delegated
Administrator User Role. You need to ensure that User1 can add Server2 to the fabric. What should
you do?

A.
Modify the logon account for the System Center Virtual Machine Manager Agent service on
Server1.

B.
Create a Run As Account that is a member of the local Administrators group on Server2.

C.
Add User1 to the Domain Admins security group.

D.
Assign the Administrator User Role to User1.

Explanation:
http://technet.microsoft.com/en-us/library/hh356037.aspx
Error (406)
Access has been denied while contacting the server <server name>. Recommended Action
1. Verify that the specified user account has administrative privileges on <server name>.
2. Verify that DCOM access, launch, and activation permissions are enabled on <server name> for
the Administrators group. Use dcomcnfg.exe to modify permissions, and then try the operation
again.