Microservices architecture pattern has been applied and the system has been architected as a set of services.
Each service is deployed as a set of instances for throughput and availability.
In which two ways are these services packaged and deployed? (Choose two.)
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A. B. C. D. E.AB.
Microservices architecture is a software design approach where an application is decomposed into small, independent services that can be developed, deployed, and scaled independently of each other. These services are designed to be highly cohesive and loosely coupled, which means that they can be developed and deployed independently without affecting other services in the system.
When deploying microservices, it is important to package them in a way that supports their independent deployment and scalability. There are several ways to do this, but two common approaches are:
A. Service instances must be isolated from one another.
This approach emphasizes the need for each service instance to be deployed in its own isolated environment. This isolation is achieved using containerization technology like Docker or Kubernetes. Each service instance is packaged as a separate container, with its own runtime, dependencies, and configuration. This ensures that each service instance is isolated from the others and can be scaled independently.
B. Service must be independently deployable and scalable.
This approach emphasizes the need for each service to be independently deployable and scalable. This is achieved by designing each service to be self-contained and independent of other services. Each service should have its own source code repository, build pipeline, and deployment pipeline. This ensures that each service can be deployed and scaled independently without affecting other services in the system.
C. Service are written using the same languages, frameworks, and framework versions.
This statement is incorrect. Microservices are designed to be independent, so they can be written using different languages, frameworks, and versions. The important thing is that each service is self-contained and independent, with its own runtime, dependencies, and configuration.
D. Service must be dependent, deployable, and scalable.
This statement is also incorrect. Microservices are designed to be independent, so they should not be dependent on other services in the system. Each service should be self-contained and independent, with its own runtime, dependencies, and configuration. This ensures that each service can be deployed and scaled independently without affecting other services in the system.
E. Service instances do not need to be isolated from one another.
This statement is incorrect. It is important for each service instance to be isolated from the others to ensure scalability and availability. Isolation can be achieved using containerization technology like Docker or Kubernetes, which provides a separate runtime environment for each service instance.
In summary, when deploying microservices, it is important to package them in a way that supports their independent deployment and scalability. Two common approaches are to isolate service instances from each other using containerization technology, and to design each service to be self-contained and independent of other services.