A multinational has two ExpressRoute circuits, one in Amsterdam and one in Singapore, terminating in Microsoft Enterprise Edge routers. It wants the two on-premises datacenters to exchange data with each other over the Microsoft backbone without traversing the public internet, while keeping each circuit on the Standard SKU. Which capability is required?
- AUpgrade both circuits to the ExpressRoute Premium add-on for global reachability.
- BConfigure VPN Gateway with a VNet-to-VNet connection between two regional gateways.
- CDeploy a Virtual WAN Basic with both ExpressRoute circuits attached to one hub.
- DEnable ExpressRoute Global Reach between the Amsterdam and Singapore circuits. Correct
Why A is wrong: Premium expands Azure region reachability across geopolitical boundaries from a single circuit; it does not link two on-premises sites to each other through the Microsoft backbone. Global Reach is the dedicated feature.
Why B is wrong: VNet-to-VNet links virtual networks in Azure, not on-premises sites; it also runs over the public internet for cross-region traffic if a hub is not introduced.
Why C is wrong: Basic Virtual WAN supports only site-to-site VPN; it does not accept ExpressRoute circuits, so this is not a valid composition.
Why D is correct: Correct. ExpressRoute Global Reach is the documented feature for exchanging data between on-premises sites through the Microsoft backbone, using two existing ExpressRoute circuits.