Your network contains a server named Server1 that runs Windows Server 2008 R2.
You create an Active Directory Lightweight Directory Services (AD LDS) instance on
Server1.
You need to create an additional AD LDS application directory partition in the existing
instance.
Which tool should you use?

A.
Adaminstall

B.
Dsadd

C.
Dsmod

D.
Ldp

Explanation:
http://technet.microsoft.com/en-us/library/cc755251.aspx
Create an Application Directory Partition
You use Ldp.exe to add a new application directory partition to an existing instance of Active
Directory
Lightweight Directory Services (AD LDS).