Which two AAA server types can be configured for authentication on a Cisco router? (Choose two.)
- TACACS+
- TACACS
- RADIUS
- ISE
- 802.1x
Explanation: Cisco routers support two primary centralized AAA protocols: TACACS+, which is a Cisco-proprietary protocol using TCP port 49, and RADIUS, an IETF standard using UDP ports 1812 and 1813. While Cisco ISE is a platform that hosts these services, TACACS+ and RADIUS are the actual server types/protocols configured on the router.
Related exam: Checkpoint Exam: MPLS and VPN Technologies
