Deploying ISRs with integrated security services can help lower the total cost of ownership. Which
of these Cisco ISR Routers features illustrate this point?

A.
using the USB port to perform fast Cisco IOS image upgrade

B.
using the high performance AIM to increase the Cisco IOS Firewall performance

C.
using built-in on-board VPN acceleration to reduce the amount of VPN configuration tasks

D.
using the SDM configuration tool to reduce training costs

E.
using the security audit feature to implement inline Intrusion Prevention System