Microsoft Azure Architect Design (AZ-304) Practice Test

Which technology should be recommended for a microservices architecture that supports low-latency operations and independent service upgrades?

1. Azure Container Instance

2. Azure Virtual Machine Scale Set

3. Azure Service Fabric

4. Azure Logic App

The correct answer is: Azure Service Fabric

The recommendation of Azure Service Fabric for a microservices architecture supporting low-latency operations and independent service upgrades is based on its inherent design and capabilities. Azure Service Fabric is specifically built for developing, deploying, and managing microservices. It offers a platform that provides flexibility in hosting services that can be composed of several independent microservices. These microservices can be updated independently, enabling rapid deployment cycles without requiring the entire application to undergo downtime or extensive redeployment. This independent upgrade capability is essential for maintaining continuous service availability, which is a critical requirement for modern cloud applications. Additionally, Azure Service Fabric supports low-latency operations through its stateful service capabilities and efficient communication mechanisms between microservices. With its robust service orchestration framework, Service Fabric can manage scaling, health monitoring, and lifecycle management out of the box, ensuring that services remain responsive and performant under varying loads. While other options like Azure Container Instances and Virtual Machine Scale Sets can also run microservices, they may not provide the same level of ease in managing state and service health in distributed systems as Service Fabric. Azure Logic Apps, on the other hand, is more suited for workflow automation and integration scenarios rather than serving as a core platform for building microservices. Thus, Azure Service Fabric stands