Your network contains an Active Directory domain named contoso.com. The domain contains a server named Server1 that runs Windows Server 2012 and a server
named Server2 that has the File Services server role installed. You install the Windows Deployment Services server role on Server1. You plan to use Server2 as a
reference computer. You need to create an image of Server2 by using Windows Deployment Services. Which type of image should you add to Server1 first?
A.
Install
B.
Boot
C.
Discovery
D.
Capture
Boot
https://technet.microsoft.com/en-us/library/dd637993(v=ws.10).aspx
tricky question, gotta have the boot image first, in order to create a capture image from that boot image (referred to MS Exam Ref book to double-check).