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.