A public works department wants Purview help finding unmarked sensitive fields in municipal datasets. Which concept should the department apply?

Purview data classification concepts include discovering and categorizing sensitive information types within organizational content, which helps find unmarked sensitive fields in datasets. A public works department seeking Purview help to locate unmarked sensitive fields in municipal datasets should apply those classification concepts. Data map concepts inventory registered sources and visualize lineage across the estate, but they do not discover or categorize sensitive information types inside content, so they won't help find unmarked sensitive fields in municipal datasets. Sensitivity label concepts protect classified documents with persistent encryption and access controls, but they apply labels to content that is already classified rather than discovering unmarked sensitive fields in datasets. Data catalog concepts enable search and curation of published datasets for business users, but they don't systematically scan content for sensitive information types, so they will miss unmarked sensitive fields that systematic discovery would catch. Exam caveat: AB-900 tests classification as discovery and categorization of sensitive information types at fundamentals depth—it does not require writing custom classifiers or SC-400 lab steps. Operational check: run sensitive-information-type discovery against public works content locations, review unmarked hits with data owners, and apply labels or remediation where sensitive fields were previously unlabeled.