What is Network Access Control (NAC)?
D3 · Architecture · CompTIA Security+ SY0-701NAC (Network Access Control) is a security solution that enforces policy compliance on endpoint devices before and during network access. It checks the device's health/posture before granting access.
NAC checks: OS patch level, antivirus status, firewall enabled, device certificate, encryption status.
Non-compliant devices are quarantined or given limited access to a remediation VLAN.
NAC checks: OS patch level, antivirus status, firewall enabled, device certificate, encryption status.
Non-compliant devices are quarantined or given limited access to a remediation VLAN.
NAC is the answer when a question asks how to ensure only healthy/compliant devices can join the network. It's about device posture, not just user credentials.