(a) Describe what the network access server (NAS) would do when receiving a REJECT message when there are two authentication servers consisting of TACACS+ and RADIUS. Both servers are contained in the method authentication list.
(b) Describe what the network access server (NAS) would do when receiving an ACCEPT message when there are two authentication servers consisting of TACACS+ and RADIUS. Both servers are contained in the method authentication list.
(c) Describe what the authentication server (security server) process would be when receiving an ERROR message when there are four authentication servers consisting of two TACACS+ servers and two RADIUS servers. The four security servers are contained in the method authentication list.