Which AAA protocol is most likely able to handle this requirement?

An Internet Service Provider (ISP) has a need to authenticate users connecting using analog modems, digital Subscriber Line (DSL), wireless data services, and virtual Private Networks (VPN) over a Frame Relay network.

Which AAA protocol is most likely able to handle this requirement?
A . DIAMETER
B . Kerberos
C . RADIUS
D . TACACS+

View Answer

Answer: D