Which three deployment scenarios does Cisco Configuration Assistant Support? (choose three)

A.
Cisco SR 500 in secure router mode, acting as a front end for Cisco Unified Communications 500

B.
Cisco SR 500 teleworker with Cisco Unified Communications 500 as VPN server

C.
multi-site VPN with Cisco Unified Communications 500 platforms

D.
centralized Cisco Unified Communications Manager VE with Cisco Unified Communications 500 in SRST mode

E.
redundant Cisco Unified Communications 500 with primary-to-backup failover

F.
Cisco Unified Communications 500 to Cisco Unified Communications Manager SIP trunk