Your company has an office in New York and an Azure subscription containing multiple virtual networks. You must connect those virtual networks to the office using ExpressRoute. Requirements: up to 1 Gbps bandwidth, the office must access all virtual networks, and costs must be minimized. How many ExpressRoute circuits should you provision, and which ExpressRoute SKU should you enable?

One ExpressRoute Premium circuit is correct. Premium SKU is required because it allows global connectivity, enabling the New York office to access virtual networks in any Azure region. A single circuit meets the 1 Gbps bandwidth requirement and minimizes cost compared to multiple circuits. Standard SKU does not offer global connectivity, limiting access to virtual networks within the same geopolitical region. Two or four circuits would significantly increase costs unnecessarily, as a single Premium circuit can handle the bandwidth and global connectivity needs.