Desktop application managers are often afraid of changing existing Microsoft or IBM applications because of security issues when implementing new applications like instant messaging or unified messaging.

Which two facts could an account manager point out regarding this concern? (Choose two.)

A.
Cisco Unified Communications Managers 5.x/6.x are running on Linux and are not integrated anymore into the Microsoft domain.

B.
Cisco firewalls, like Adaptive Security Appliances, perform deep protocol inspection, block viruses and spyware, and prevent unwanted applications from accessing sensitive areas.

C.
There are many options when implementing of Cisco Unified Communications. For example if a customer favors isolated application domains, integrated messaging might be preferable to unified messaging.

D.
Cisco has gained experiences over many years in security. Incidents have never occurred.

E.
Cisco offers security agents for Microsoft servers.