Your company has an Active Directory domain. The Terminal Services role is installed on a member
server named TS01. The Terminal Services Licensing role service is installed on a new test server
named TS10 in a workgroup. You cannot enable the Terminal Services Per User Client Access License
(TS Per User CAL) mode in the Terminal Services Licensing role service on TS10. You need to ensure
that you can use TS Per User CAL mode on TS10. What should you do?

A.
Join TS10 to the domain.

B.
Disjoin TS01 from the domain.

C.
Extend the schema to add attributes for Terminal Services Licensing.

D.
Create a Group Policy object (GPO) that configures TS01 to use TS10 for licensing.

Explanation:
To ensure that you could employ Terminal Services per User CAL mode on TK2, you need to connect
TK2 to the Active Directory domain because TS Per User CAL tracking and reporting is supported only
in domain-joined scenarios.
Reference: TS Licensing/Are there any special considerations?
http://technet2.microsoft.com/windowsserver2008/en/library/5a4afe2f-5911-4b3f-a98a-
338b442b76041033.mspx?mfr=true