Which term is a software architecture style organized as a collection of loosely coupled services?

• A. Embedded Systems
• B. Microservice
• C. FPGA
• D. SoC

Answer: (B)

This describes a software architecture where an application is built as a collection of small, independent services that communicate over lightweight network protocols. Each service focuses on a specific business capability and manages its own data, allowing teams to develop, deploy, and scale services independently. Because the services are loosely coupled, updates or changes in one service have minimal impact on others, boosting resilience and agility. This approach also supports using different technologies for different services and often involves patterns like APIs, API gateways, and service discovery to coordinate everything.

The other terms refer to hardware-focused concepts or single integrated components rather than a service-based software design: embedded systems are device-oriented software for hardware constraints, an FPGA is a configurable hardware circuit, and a system on a chip combines multiple components on one chip.