VPN gateways authenticate using ___________ and ___________ .

VPN gateways authenticate using _ and _ .

VPN gateways authenticate using ___________ and ___________ .
A . Passwords; tokens
B . Certificates; pre-shared secrets
C . Certificates; passwords
D . Tokens; pre-shared secrets

Answer: B

Explanation:

VPN gateways authenticate using Digital Certificates and Pre-shared secrets.

Reference: https://sc1.checkpoint.com/documents/R77/CP_R77_VPN_AdminGuide/85469.htm