James the security administrator at Certkiller Inc. is working on VPNs. According to SAFE SMR guidelines, what type of VPN uses primarily Cisco VPN optimized routers?

A.
Intranet to extranet type of VPN.

B.
Extranet to remote user type of VPN.

C.
Intranet to remote user type of VPN.

D.
Site-to-site type of VPN.

Explanation:
The VPN Acceleration Module (VAM) for Cisco 7200 and 7100 Series routers provides high-performance, hardware-assisted encryption, key generation, and compression services suitable for site-to-site virtual private network (VPN) applications.
Ref: VPN Acceleration Module for Cisco 7000 Series VPN Routers