When are public gateways primarily used?

Public gateways are primarily utilized to provide internet access for applications. These gateways serve as a bridge that allows applications and services hosted within a private network to connect to and communicate with external networks, such as the internet. This functionality is essential for many cloud-based applications that need to access online resources, APIs, or any services that require internet connectivity.

By using public gateways, organizations can expose their applications to customers or users over the internet while maintaining a clear separation from their internal networks for security and structural purposes. This enables developers to build scalable applications that can interact with a global audience without compromising the integrity of their internal systems.

In contrast, secure internal communications, access control policies, and data encryption pertain to different aspects of network security and data management. These functions aim to protect data and manage permissions but do not specifically address the purpose of facilitating internet access for cloud applications, which is the primary role of public gateways.