A trading platform streams market data over ExpressRoute and needs lower latency. Its design should let packets bypass the virtual network gateway and reach the VMs directly. What should be turned on?
Show answer and explanation
Answer: C
ExpressRoute FastPath sends network traffic from the circuit directly to the virtual network's VMs, bypassing the ExpressRoute virtual network gateway in the data path. That reduces gateway bottlenecks and can lower latency for supported configurations. Port pairing, DNS zone linking and NIC acceleration do not change that path.
Why the other options are wrong
- A. ExpressRoute Direct provides dedicated high-capacity ports and circuit provisioning. It does not change the data path so that packets skip the gateway.
- B. Private DNS zone linking controls name resolution for virtual networks. It has no effect on the routing path that ExpressRoute traffic follows.
- D. Accelerated Networking speeds up traffic between a VM and its NIC. A gateway is not a VM NIC, so this option does not bypass the gateway data path.