Network Service Orchestrator includes which of the following features?

Selecting the feature of Open architecture as part of the Network Service Orchestrator highlights an essential principle in modern network management and programmability. Open architecture refers to the design approach that allows different systems and components to interact with each other seamlessly. This is particularly important in a diverse network environment where various vendors and technologies must collaborate efficiently.

By utilizing an open architecture, a Network Service Orchestrator can integrate various network services, applications, and devices, thus enabling flexibility and scalability while fostering innovation. This allows organizations to adopt new technologies without being locked into a single vendor ecosystem, which promotes adaptability in response to evolving business requirements and technology advancements.

In contrast, while features such as fail-safe, optimization, and multiprotocol capabilities are relevant to networking, they are not exclusive to or defining traits of Network Service Orchestrators. Fail-safe features focus on redundancy and reliability in operations, optimization pertains to performance improvements, and multiprotocol support ensures compatibility across different communication protocols, but these do not capture the broader integration and flexibility that an open architecture provides.