Which four options are examples of Cisco network security solutions? (Choose four.)
A. Cisco Security Manager
B. Cisco ASA Next-Generation Firewall Services
C. Cisco Web Security Appliance
D. Cisco Identity Services Engine
E. Cisco Site-to-Site VPN
F. Cisco Email Security Appliance
G. Cisco Next-Generation Intrusion Prevention System
H. Cisco ASA Firewall Services