Which two server instances would be used as secondary authentication servers on the Junos
Pulse Secure Access Service? (Choose two.)

A.
RADIUS server

B.
anonymous server

C.
Active Directory server

D.
certificate server

Explanation:
https://www.juniper.net/techpubs/en_US/sa/topics/task/configuration/secure-accessauthentication-servers-radius-defining.html