Exam MB-280 topic 5 question 5 discussion

Actual exam question from Microsoft's MB-280

Question #: 5
Topic #: 5

One of the data sources being ingested into Dynamics 365 Customer Insights - Data is Microsoft Dataverse.
During the unification process, you need to identify the primary key.
Which three data types can you use as a primary key attribute? Each correct answer presents a complete solution. (Choose three.)
NOTE: Each correct selection is worth one point.

A. Integer
B. Whole Number
C. String
D. Boolean
E. GUID

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Suggested Answer: ACE 🗳️

by Elreal at July 23, 2025, 11:43 a.m.

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Acrious

1 week, 3 days ago

Selected Answer: ACE

Here is the issue. Integer is NOT a selectable thing in Dataverse, you can select Number and then the type of number, which is Whole Number, which essentially means Integer. So the wording all over the place is horrible. But whole number means integer, but if you go by whats in the UI, you have to say Whole Number, not integer. So do you go with the UI, do you go with the docs, do you go with knowing what an integer is.. who knows.. but the default configuration of a Whole Number, is an Integer for SQL Server. So INT is it as Whole Number is more.. a description than a data type.

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Elreal

1 week, 6 days ago

Selected Answer: ACE

see https://learn.microsoft.com/en-us/dynamics365/customer-insights/data/data-unification-map-tables "String, integer, and GUID data type columns are supported as primary keys."

upvoted 2 times

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