What type of architecture does Avaya Aura utilize?

Avaya Aura employs a service-oriented architecture (SOA), which is designed to support complex, distributed applications and services. This architecture enables the integration of various components and services, allowing for flexibility and scalability in deployment and management. SOA allows different applications to communicate and interact through standard protocols, thus promoting interoperability across diverse systems and facilitating easier integration of third-party applications.

One of the primary advantages of SOA is that it promotes reusability of services, meaning organizations can make use of existing services and integrate them into new applications without the need to create everything from scratch. This can significantly reduce development time and costs, while also increasing the resilience and agility of the overall system.

In contrast, other architectural options mentioned in the question do not provide the same level of flexibility or efficiency that SOA does. Monolithic architectures are typically less adaptable and harder to scale, while client-server models focus on a specific communication method that limits interoperability. Peer-to-peer networks lack the centralized management and service integration capabilities that are central to Avaya Aura's functionality.