Microsoft Azure Architect Design (AZ-301) Practice Exam

Microservices Architecture is focused on isolating application components to improve scalability. In this approach, an application is broken down into small, independent services that can each be developed, deployed, and scaled independently. This modular structure allows different components to be scaled horizontally by adding more instances of a service as needed, making it easier to manage load and optimize resource usage.

Each microservice runs in its own container or process, which enhances fault tolerance because one service can fail without affecting the entire application. This architecture promotes agility in development and deployment, as teams can work on services in parallel, facilitating continuous integration and delivery.

In contrast, other architectural patterns do not offer the same level of isolation and scalability. Monolithic Architecture, for example, bundles all components into a single codebase, making it difficult to scale individual parts independently. Layered Architecture organizes code into layers but does not enable the same degree of independent scalability as microservices. Event-driven Architecture focuses on communication between services via events, but it does not inherently address the isolation and independent scalability of application components in the same way that microservices do.