HOTSPOT
You are developing a SQL Server Analysis Services (SSAS) cube.
You create a degenerate dimension.
You need to define a relationship type for the dimension.
Which relationship type should you select? (To answer, configure the appropriate option or
options in the dialog box in the answer area.)
Answer: 
fact
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degenerated dimension = dimension basing on the fact table
https://msdn.microsoft.com/en-us/library/ms167409.aspx