
Explanation/Reference:
Explanation:
Box 1: 3
Box 2: 3
Considerations for using gateway
A single instance of Data Management Gateway can be used for multiple on-premises data sources.

However, a single gateway instance is tied to only one Azure data factory and cannot be shared with another data factory.
You can have only one instance of Data Management Gateway installed on a single machine.

Suppose, you have two data factories that need to access on-premises data sources, you need to install gateways on two on-premises computers. In other words, a gateway is tied to a specific data factory.
Reference: https://docs.microsoft.com/en-us/azure/data-factory/data-factory-data-management-gateway