An administrator needs to modify a virtual machine alert to increase the threshold value of the
trigger. Once connected to the vCenter Server, the administrator navigates to the virtual machine
to make the change. However, the administrator is unable to edit the alarm.
What is the reason that this alarm cannot be edited?
A.
The alarm was not defined on this inventory object.
B.
The administrator is not the owner of this inventory object.
C.
The alarm was not created by the administrator.
D.
The alarm has not been acknowledged.
Explanation:
A is correct
Alarms can only be modified, disabled, or enabled on the object to which they were defined
You cannot change or override an alarm that is set on a child object from its parent object. You must change the alarm on the child object itself.
http://pubs.vmware.com/vsphere-4-esx-vcenter/index.jsp?topic=/com.vmware.vsphere.dcadmin.doc_41/vc_client_help/working_with_alarms/c_working_with_alarms.html