Which series of Cisco routers is suitable for small businesses and for connecting small offices to enterprise networks？（）

A. It defines the minimum set of services required to successfully deploy and operate a set of Cisco technologies
B. It determines how best to price Cisco products
C. It provides partners with a useful way to leverage Cisco resources
D. It consists ofthese phase： plan， deploy， support， and troubleshoot

A. Unified advanced service
B. client devices
C. Catalyst switches
D. network management
E. mesh access points
F. VPN concentrator

A. rapid response time
B. head count
C. connectivity
D. security threats
E. reduced complexity
F. disaster recovery