MuleSoft Certified Associate Practice Exam

An API Gateway primarily manages the interaction between clients and back-end services, which includes controlling the flow of North-South traffic (traffic between clients and the services), providing security measures like authentication and authorization for APIs, and serving as the single entry point for clients to access various services.

However, managing internal service communication typically falls outside the main responsibilities of an API Gateway. Internal service communication usually involves interactions between microservices within the system, which are often handled by service meshes or direct service-to-service communication mechanisms. While the API Gateway facilitates client-side access and secures the APIs, it is not specifically designed to manage inter-service communications on the internal side of the architecture. Therefore, this distinction clarifies why managing internal service communication is not a function of the API Gateway.