A NAC solution evaluates an endpoint's identity and security posture (patch level, antivirus status, configuration compliance) before allowing it onto the network. If the device meets policy, the NAC grants appropriate access; if it does not, the NAC can quarantine or block it. Encrypting traffic, packet malware inspection, and load-balancing are handled by other technologies such as VPNs, IDS/IPS, and application delivery controllers, not by NAC.
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ISC2 Certified in Cybersecurity (CC)
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