Which of the following must be part of the security architecture to achieve AAA?

A company is upgrading its wireless infrastructure to WPA2-Enterprise using EAP-TLS.

Which of the following must be part of the security architecture to achieve AAA? (Select TWO)
A . DNSSEC
B . Reverse proxy
C . VPN concentrator
D . PKI
E . Active Directory
F . RADIUS

Answer: E,F