Phase 1 of the two-phase negotiation process conducted by IKE operates in ______ mode.
A . Main
B . Authentication
C . Quick
D . High Alert
Answer: A
Explanation:
Phase I modes
Between Security Gateways, there are two modes for IKE phase I. These modes only apply to IKEv1:
– Main Mode
– Aggressive Mode
Reference: https://sc1.checkpoint.com/documents/R76/CP_R76_VPN_AdminGuide/13847.htm