A.They can operate in tunnel mode and transport mode

B.They allow multicast traffic to traverse WAN circuits

C.They provide privacy, integrity, and authenticity

D.They add 8 bytes to the IP header of each packet.

E.They encapsulate the payload.

A.The area numbers on R1 and R2 are mismatched

B.The IPv6 network addresses on R1 and R2 are mismatched

C.The autonomous system numbers on R1 and R2 are mismatched

D.The router ids on R1 and R2 are mismatched

A.The switch discard all ingress ARP traffic with invalid MAC-to-IP address bindings.
Dynamic ARP inspection is an ingress security feature; it does not perform any egress checking.

B.All ingress and egress traffic is dropped because the interface is untrusted

C.Egress traffic is passed only if the destination is a DHCP server.

D.All ARP packets are dropped by the switch