Your network contains a server that has the Active Directory Lightweight Directory Services
(AD LDS) role installed.
You need to perform an automated installation of an AD LDS instance.
Which tool should you use?

A.
Dism.exe

B.
Servermanagercmd.exe

C.
Adaminstall.exe

D.
Ocsetup.exe

Explanation:
http://technet.microsoft.com/en-us/library/cc816774.aspx
To perform an unattended install of an AD LDS instance
1. Create a new text file by using any text editor.
2. Specify the installation parameters.
3. At a command prompt (or in a batch or script file), change to the drive and directory that
contains the AD LDS setup files.
4. At the command prompt, type the following command, and then press ENTER:
%systemroot%\ADAM
\adaminstall.exe /answer:drive:\<pathname>\<filename>.txt”