Free Cisco CCNP Switching Questions

The users in a department are using a variety of host platforms, some old and some new. All of them have been approved with a user ID in a RADIUS server database. Which one of these features should be used to restrict access to the switch ports in the building?

a. AAA authentication
b. AAA authorization
c. Port security
d. Port-based authentication

Answer:

C

Because of the variety of user host platforms, port-based authentication (802.1x) cannot be used. The problem also states that the goal is to restrict access to physical switch ports, so AAA is of no benefit. Port security can do the job by restricting access according to the end users’ MAC addresses.