A、 Routed mode requires the ACE run OSPF or EIGRP

B、 Bridged mode switches a packet between the public and the private subnets when it sees itsMAC address as the destination

C、 Two-armed mode will place the SLB inline to the servers， with different client-side and a server-side VLANs

D、 One-armed mode， which uses the same VLAN for the client， the ACE， and the servers， requiresa traffic-diversion mechanism to ensure the traffic return from the server passes though the ACE