The most important part of a site-to-site VPN deployment is the ________ .

A.
Internet

B.
Remote users

C.
Encrypted VPN tunnel

D.
VPN gateways

Explanation:
Site to Site VPN
The basis of Site to Site VPN is the encrypted VPN tunnel. Two Security Gateways negotiate a link and create a
VPN tunnel and each tunnel can contain more than one VPN connection. One Security Gateway can maintain
more than one VPN tunnel at the same time.
https://sc1.checkpoint.com/documents/R76/CP_R76_Firewall_WebAdmin/92709.htm