HOTSPOT
You are a data warehouse developer responsible for developing data cleansing processes.
Duplicate employees exist in an employee dimension.
You need to map, discover, and manage domain values based on the employee dimension.
Which Data Quality Services (DQS) option should you use? (To answer, select the
appropriate option in the answer area.)
Answer: 
The answer appears to be correct according to this link;
https://msdn.microsoft.com/en-us/library/gg524799(v=sql.110).aspx#Discovery
Using the New Knowledge Base button, one can create any of the following:
Mapping (source columns to data domains): create a Matching Policy activity
Discovery: create a Knowledge Discovery activity, based on available dimensions
Manage Domain Values: create a Domain Management activity
+1 thanks ! 🙂