In the exhibit, User A has authenticated using 802.1X. User B and User C have not authenticated.
The RADIUS server fails.
Which configuration allows User A and User B access to the network, but prevents User C from accessing the network?
A.
[edit protocols dot1x authenticator]
user@S1# set interface ge-0/0/0.0 server-fail use-cache
user@S1# set interface ge-0/0/1.0 server-fail permit
user@S1# set interface ge-0/0/2.0 server-fail use-cache
B.
[edit protocols dot1x authenticator]
user@S1# set interface ge-0/0/0.0 server-backup if-authenticated
user@S1# set interface ge-0/0/1.0 server-backup if-authenticated
user@S1# set interface ge-0/0/2.0 server-backup deny
C.
[edit protocols dot1x authenticator]
user@S1# set interface ge-0/0/0.0 server-backup if-authenticated
user@S1# set interface ge-0/0/1.0 server-backup permit
user@S1# set interface ge-0/0/2.0 server-backup deny
D.
[edit protocols dot1x authenticator]
user@S1# set interface ge-0/0/0.0 server-fail permit
user@S1# set interface ge-0/0/1.0 server-fail use-cache
user@S1# set interface ge-0/0/2.0 server-fail use-cache