Which device typically serves as a network access server?
- router
- switch
- firewall
- access point
- all of the above
Explanation: In the AAA architectural framework, the Network Access Server (NAS)—also known as the client—is the device that users or machines contact to gain access to a protected resource, such as a network or a device CLI. According to the sources, a NAS is typically a router, switch, firewall, or access point. These devices act as intermediaries (proxies) that communicate with an authentication server, such as Cisco ISE, using RADIUS or TACACS+ protocols to verify identity information and enforce authorization status.
Related exam: Modules 14 – 16: Checkpoint Exam: Network Security Answers (CCNP ENCOR v9)
