Which WAN connection requires a different interface than the standard interface provided in the Cisco Single-Site Secure Network Foundation deployment design？（）

A.NAC
B.Routing
C.Intrusion Protection
D.Quality Of Service
E.NAT

A.The Cisco Control VLAN carries only Layer 2 control traffic
B.802.1Q trunking is used between the access switch and the router
C.There is no 802.1Q trunking used in these designs
D.When 802.1Q trunks are configured， they are also called Native VLANs
E.Trunking Ensures that traffic from only one VLAN is carried on that trunk