How are columns with category suffixes classified?

How are columns with category suffixes classified?

• A. They are stored as free text
• B. They are case-sensitive
• C. They are normalized, with a defined set of allowed values
• D. They are ignored in processing

Answer: (C)

Columns with category suffixes are treated as normalized categorical fields. They point to a controlled vocabulary—typically a lookup table or an enumerated set of allowed values—so every row uses a consistent category. This approach keeps data clean, enables reliable filtering and aggregation, and reduces variations like typos or alternate spellings. Free-text storage would invite inconsistencies, while ignoring the field would discard valuable classification information. The idea of enforcing a defined set of values best captures how these suffixes are classified.

Columns with category suffixes are treated as normalized categorical fields. They point to a controlled vocabulary—typically a lookup table or an enumerated set of allowed values—so every row uses a consistent category. This approach keeps data clean, enables reliable filtering and aggregation, and reduces variations like typos or alternate spellings. Free-text storage would invite inconsistencies, while ignoring the field would discard valuable classification information. The idea of enforcing a defined set of values best captures how these suffixes are classified.