In which mode are the VENs during the deny rule stage of the ruleset journey?

During the deny rule stage of the ruleset journey, VENs (Virtual Endpoint Nodes) operate in Selective mode. This mode allows the system to enforce specific deny rules while still providing visibility into all traffic. The purpose of this stage is to allow administrators to observe the traffic that would be impacted by potential deny rules without fully blocking all communication, enabling a better understanding of how the rules will affect traffic patterns and application functionality.

In this mode, while certain traffic flows are denied, other traffic continues to be processed normally, which aids in fine-tuning the security policies before full enforcement is implemented. This approach helps to ensure that legitimate traffic is not unintentionally blocked and provides an opportunity to make adjustments to rules based on observed behavior.

The other modes, such as Full Enforcement, Visibility Only, and Disabled, do not fit the context of selectively applying deny rules while still allowing monitoring of all traffic, thereby making Selective the appropriate answer for the deny rule stage.