Which statement about microservices is correct?

The microservices architecture, which is the foundation of the Juniper Mist cloud, structures an application as a collection of loosely coupled, independently deployable services. This design ensures resilience and fault isolation. If one service (e.g., the location service) fails or requires an update, it does not impact the operation of other services (e.g., authentication or radio resource management). This independence allows for continuous operation, targeted scaling, and agile development of the overall platform.

B. Microservices typically communicate via lightweight, language-agnostic APIs like REST over HTTP, not a specific network management protocol like NETCONF.

C. This describes a monolithic architecture, which is the antithesis of the microservices approach where applications are broken down into smaller components.

D. A core tenet of microservices is decentralized data management, where each service owns its own database to avoid tight coupling and single points of failure.

1. Juniper Networks. (2020). Mist Cloud Architecture. White Paper, p. 3. "The Mist platform is built on a modern microservices cloud architecture... This brings the agility of a microservices cloud to enterprise networking, with a focus on operational simplicity, scale, and reliability... If any single microservice goes down, the rest of the system is not impacted."

2. Dragoni, N., Giallorenzo, S., Lafuente, A. L., Mazzara, M., Montesi, F., Mustafin, R., & Safina, L. (2017). Microservices: yesterday, today, and tomorrow. In P. Avgeriou, M. A. M. de Oca, & T. D. T. Valença (Eds.), Software Architecture Today (pp. 195-216). Springer. https://doi.org/10.1007/978-3-319-56324-912 (Section 2.2 discusses fault isolation as a key characteristic).