1. When receiving a user access request, the NAS determines the domain to which the user belongs based on the user name, and performs user management and control based on the AAA schemes configured for the domain.
2. Which of the following roles is not included in the common AAA network architecture?
3. What are the transport layer protocol and authentication port number used by RADIUS?
4. Which of the following authorization modes is not supported by AAA?
5. Which of the following concepts are involved in AAA?