Correct Answer:
Explanation/Reference:
Note:
* From scenario:
/ Fabrikam has an AD DS domain named fabrikam.com
/ Fabrikam users must be able to directly access internal SharePoint resources in the adatum.com domain.
/ Datum users must not be able to access resources in the fabrikam.com domain.
* A.Datum need to Trust Fabrikam (as Fabrikam need to access resources in A.Datum) so A.Datum is the source and Fabrikam the destination.
* A one-way, outgoing, forest trust allows resources in your Windows Server 2008 forest or Windows Server 2003 forest (the forest that you are logged on to at the time that you run the New Trust Wizard) to be accessed by users in another Windows Server 2008 forest or Windows Server 2003 forest. For example, if you are the administrator of the wingtiptoys.com forest and resources in that forest need to be accessed by users in the tailspintoys.com forest, you can use this procedure to establish one side of the relationship so that users in the tailspintoys.com forest can access resources in any of the domains that make up the wingtiptoys.com forest.
Reference: Create a One-Way, Outgoing, Forest Trust for One Side of the Trust