A single Cloud Router can connect to which of the following interfaces?

A single Cloud Router can connect to both Partner Interconnect and Classic VPN tunnel interfaces, making this the correct choice.

Cloud Routers in Google Cloud are designed to facilitate dynamic routing for both on-premises networks and resources running in Google Cloud. Partner Interconnect allows you to connect directly to Google’s network from a partner’s data center, which can enhance network performance and reliability. Classic VPN, on the other hand, provides secure connections via IPsec VPN tunnels over the internet, enabling your on-premises network to communicate with Google Cloud services.

By being able to connect to both types of interfaces, a Cloud Router can accommodate different networking needs and configurations, supporting flexibility in connecting cloud resources with on-premises setups, while also managing route advertisements dynamically. This capability enhances the overall networking efficiency and adaptability for enterprises leveraging Google Cloud's infrastructure.