Derivative Classification Training Practice Exam

The "revealed by" concept relates specifically to how information can be inferred from other known details. In this context, the correct choice emphasizes that information can be deduced through careful and detailed analysis. This concept is crucial in derivative classification, as it highlights the importance of understanding that even if information is not explicitly classified, it can still lead to the revelation of classified data through logical reasoning or analysis. The other choices, while relevant to the broader framework of information security and classification, do not directly relate to the "revealed by" concept. For instance, marking classified information and restricting access are essential practices in protecting sensitive data but do not address the analytical deduction of classified information itself. Protecting information from unauthorized disclosure is a fundamental principle of information security, but it does not encapsulate the specific mechanics of how information may be revealed through analysis.