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.
* Add Certificate to the SharePoint Trusted Root Certificate Authority
Step 1: Export the Security Certificate
Here from Fabrikam.
Step 2: Import the Security Certificate into SharePoint Trusted Root Certificate authority
Here in Adatum.com
Reference: Add Certificate to the SharePoint Trusted Root Certificate Authority