Which two of these are features of the Cisco 2851 Integrated Services Router, but not features of
Cisco 1800 Series Integrated Services Routers? (Choose two.) Select 2 response(s).

A.
32-Gbps switching bus

B.
built-in wireless module

C.
Cisco SDM for simplified management

D.
two integrated 10/100/1000 Ethernet ports

E.
Power over Ethernet support for 10/100 Ethernet ports

F.
slots dedicated to Cisco High-Density Analog and Digital Extension Module for Voice and Fax