4G/5G Core is the heart of a 4G/5G mobile network. It establishes reliable, secure connectivity to the network for end users and provides access to its services. The core domain handles a wide variety of essential functions in the mobile network, such as connectivity and mobility management, authentication and authorization, subscriber data management and policy management, among others. 4G/5G Core network functions are completely software-based and designed as cloud-native, allowing higher deployment agility and flexibility on multiple cloud infrastructures.