Which is a key server found in SAFE Enterprise network design edge corporate Internet module?

A.
Database server

B.
Application server

C.
URL filtering server

D.
Proxy server

Explanation:

The following are key devices for the SAFE Enterprise Network Edge Corporate Internet module:
1) SMTKP server
2) DNS server
3) FTP/HTTP server
4) URL filtering server
5) Firewall
6) NIDS appliance
Reference: Cisco Courseware page 8-28