Which of the following is a specification attribute?

• A. Attributes
• B. Currency code format
• C. Null Handling
• D. Unit Format

Answer: (C)

Null handling is a specification attribute because it defines how the data element should behave when a value is missing. It sets the contract for the data: should nulls be allowed, should a default be used, or should an error be raised during validation or processing? This kind of rule governs how data is interpreted and validated, which is the essence of a specification attribute.

In contrast, currency code format and unit format describe how data is presented or displayed (the appearance or formatting rules), not the constraints or behavior of the data itself. The term “attributes” is too broad and doesn’t pinpoint a specific contract about data values.