What best describes a Trusted Network?

• A. External networks outside the organization's control.
• B. Networks used only for guest devices.
• C. A network that blocks all traffic.
• D. Network within the organization's ability to control or manage.

Answer: (D)

A Trusted Network is the network boundary that the organization can fully control and manage, applying security controls, monitoring, and enforcement to protect sensitive data. The idea is that within this boundary you can reliably implement access controls, segmentation, logging, patching, and other safeguards, making it a secure path for important systems and data. In PCI DSS terms, this means the network where you have governance and protections in place to keep cardholder data safe. Networks outside that control aren’t trusted because you can’t ensure the same protections, such as external networks or partner/guest paths. A network that blocks all traffic isn’t usable for legitimate operations, so it doesn’t meet the practical idea of a trusted, manageable boundary.