Your company uses 802.1X to authenticate your users. You want to provide access to the Internet
when users cannot authenticate on the RADIUS server or when the RADIUS server becomes
unreachable.
Which two methods accomplish this goal? (Choose two.)
A.
using a captive portal
B.
using a server fail fallback
C.
using MAC RADIUS
D.
using a guest VLAN
http://www.juniper.net/documentation/en_US/junos13.3/topics/concept/802-1x-pnac-guest-vlan-understanding.html
http://www.juniper.net/documentation/en_US/junos13.2/topics/task/configuration/802-1x-server-fail-fallback-cli.html
The authentication fallback method called server-reject VLAN provides limited access to a LAN, typically just to the Internet, for responsive end devices that are 802.1X-enabled but that have sent the wrong credentials. If the end device that is authenticated using the server-reject VLAN is an IP phone, voice traffic is not allowed.