HOTSPOT
You are using the Master Data Services (MDS) Add-in for Excel to configure the entities in a
model- The model consists of two entities: one named Customer and one named State. You
opened the Customer entity.
Currently, data stewards can enter any text value in the Customer entity’s State attribute.
You must restrict the entry of values in the State attribute to members defined in the State
entity.
You need to configure the State attribute of the Customer entity.
Which command should you use? (To answer, select the appropriate command in the
answer area.)
Answer: 
The Attribute Properties functionality lets you define Domain-based (constrained) attributes.
Who uses this tool?
Love this comment !!! I know no one who use this tool 🙂 as per textbook master users should use this tool ..