Are agencies required to maintain an up-to-date network diagram for review and audit?

Maintaining an up-to-date network diagram is crucial for effective network management and security best practices, and while many organizations opt to do so for internal auditing and compliance purposes, it isn't explicitly mandated universally across all agencies.

The requirement for such documentation may vary depending on the specific regulatory frameworks and industry standards applicable to different organizations. In many cases, guidelines advocate for maintaining accurate documentation for operational efficiency, incident response, and security assessments, but it is not a blanket requirement.

The notion that "it is not required" reflects the understanding that not all agencies are bound by the same rules or regulations regarding network documentation. This flexibility allows agencies of various types and sizes to determine their own best practices based on their unique operational needs, risk management strategies, and compliance obligations.

In contrast, the other options suggest requirements based on agency size or indicate a blanket requirement for all agencies, which does not accurately capture the varying regulations and practices across different jurisdictions and types of organizations.