Which statement best describes a microservices architecture?

Which statement best describes a microservices architecture?

• A. Monolithic architecture deploys multiple services independently.
• B. Microservices split an application into independent services that can scale separately.
• C. Microservices cannot be scaled independently.
• D. Monolithic architecture enforces separate teams per service.

Answer: (B)

Microservices architecture means breaking an application into a set of small, independent services that communicate over a network. Each service can be built, deployed, and scaled independently, which is the defining advantage. This allows you to scale only the parts that need more resources, update services without touching the whole app, and improve fault isolation. The statement that describes independent services that can scale separately best captures this idea.

Monolithic architectures operate as a single deployable unit, so they don’t support independent deployment or scaling of individual parts. Microservices also enable independent scaling, which is why the idea that microservices cannot be scaled independently is incorrect. And while teams may be organized around services, the architecture itself isn’t defined by team structure.