Company XYZ allows employees to use any open desk and plug their laptops in. They want authentication using domain credentials and future capability for segmentation within the same subnet. Which protocol can be recommended?
B (EAP - Extensible Authentication Protocol):EAP is commonly used for 802.1X port-based authentication, allowing identity-based control for users on the network. This enables policy enforcement, identity-based segmentation (micro/macro segmentation), and leverages existing domain credentials via backend integration.
Other options explained:
A: LDAP is backend directory, not an authentication protocol for access ports.
C: TACACS+ is used primarily for administrative access.
D: RADIUS transports the EAP exchange but is not the authentication protocol itself.
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