Which deployment type involves traffic passing through the ADC while connecting to both client and server networks?

• A. Direct server return
• B. One-arm
• C. Bridge mode
• D. Two-arm

Answer: (D)

In Citrix ADC deployments, the layout of where the appliance sits relative to client and server networks determines how traffic travels through it. A two-arm inline deployment uses two distinct interfaces: one facing the client network and one facing the server network. Because the ADC sits in the data path between both networks, every request from a client and the corresponding response from a server pass through the ADC. This placement lets the appliance inspect, offload, and apply policies on traffic in both directions, providing full control and visibility.

Direct server return bypasses the ADC on the return path, so not all traffic goes through the appliance. A one-arm deployment uses a single path (often with NAT/hairpin routing) and doesn’t place the ADC inline between two separate networks. Bridge mode makes the ADC a transparent layer-2 bridge, which can pass traffic between networks but isn’t the classic inline path with separate front-end and back-end networks.