Which of the following can be supported by Policy Center access control? (Choose three.)

SSL VPN supported file sharing types can be divided into two kinds of SMB and NFS, SMB correspond Windows hosts, NFS correspond Linux host

Which user authentication methods can be supported by Policy Center system? (Choose three.)

Network administrators set up networking as follows: LAN_A - -------- (G0/0) USG_A (G0/1) - -------- (G0/0) USG_B (G0/1) - ------------- LAN_B USG_A divides firewall security zones, connects LAN_A areas Trust, connects USG_B area’s Untrust, according to the above description, which of the following statement is correct?

In the first stage of IKE negotiation, which of the following IKE exchange mode does not provide identity protection features?