Which of the following should be used to authenticate and log connections from wireless users connecting with
EAP-TLS?

A.
Kerberos

B.
LDAP

C.
SAML

D.
RADIUS

Explanation:
EAP-TLS, defined in RFC 2716, is an IETF open standard, and is well-supported among wireless vendors. It
offers a good deal of security, since TLS is considered the successor of the SSL standard. It uses PKI to
secure communication to the RADIUS authentication server.
Remote Authentication Dial In User Service (RADIUS) is a networking protocol that provides centralized
Authentication, Authorization, and Accounting (AAA) management for users who connect and use a network
service. Because of the broad support and the ubiquitous nature of the RADIUS protocol, it is often used by
ISPs and enterprises to manage access to the Internet or internal networks, wireless networks, and integrated
e-mail services.