Which NAC deployment involves software installed on the endpoint requesting access?

• A. Agentless NAC
• B. Persistent NAC
• C. Volatile Agent
• D. NAC Manager

Answer: (B)

This is about agent-based NAC deployments. When software is installed on the endpoint to participate in access decisions, you’re dealing with an agent-based approach. A persistent agent means the software stays installed on the device across sessions and continuously reports posture data and requests access from the NAC system before connection is granted. This persistent presence enables ongoing enforcement and quicker remediation if the device state changes.

Agentless NAC, by contrast, does not install software on the endpoint and relies on network-side checks to decide access. A volatile or temporary agent would be installed only briefly, which doesn’t align with the idea of software that remains on the endpoint to continuously request access. NAC Manager is a management interface, not the deployment model itself.