Developing Solutions for Microsoft Azure (AZ-204) Practice Exam

Which option is not a model that can be used with Azure ExpressRoute?

1. Any-to-any connection

2. Point-to-point Ethernet connection

3. CloudExchange colocation

4. Site-to-site virtual private network

The correct answer is: Site-to-site virtual private network

Azure ExpressRoute is a service that allows businesses to create private connections between Azure data centers and their on-premises infrastructure or colocation environments. It provides various connectivity models that provide direct and secure connections without traversing the public internet, ensuring better reliability, speed, and privacy. The first three options are valid models under Azure ExpressRoute. - Any-to-any connections refer to a model where multiple sites can connect to each other through a central hub, facilitating a mesh of network connections. - Point-to-point Ethernet connections are direct connections between a single enterprise location and Azure, allowing for straightforward networking without the added complexity of a broader network architecture. - CloudExchange colocation involves facilities where multiple customers can connect to various service providers including Azure, allowing for efficient data transfer and reduced latency through proximity. On the other hand, a site-to-site virtual private network (VPN) is not directly related to Azure ExpressRoute. While Azure offers VPN solutions for secure connectivity over the internet, a VPN operates over public infrastructure rather than providing the private, dedicated connections characteristic of ExpressRoute. This distinction is significant since ExpressRoute is focused on offering more secure, stable, and private connections, whereas a site-to-site VPN is meant for connecting to Azure via the public internet,