Exam 300-715 topic 1 question 28 discussion

This example shows how to enable 802.1X and AAA on Fast Ethernet port 2/1, and how to verify the configuration: Switch# configure terminal Switch(config)# dot1x system-auth-control Switch(config)# aaa new-model Switch(config)# aaa authentication dot1x default group radius Switch(config)# interface fastethernet2/1 Switch(config-if)# switchport mode access Switch(config-if)# dot1x pae authenticator Switch(config-if)# dot1x port-control auto Switch(config-if)# end

B is correct - PAE authenticator on the interface--dot1x system-auth-control in GLOBAL CONFIG

dot1x PAE is for interface level configuration

dot1x system-auth-control= do it globaly all the switch and PAE do it only on interface

I thought for some reason thus should be dot1x system-auth-control since the question did not mention anything about PAE?