ITGSS Certified DevOps Engineer Practice Test

What is the primary function of the Service Mesh?

1. Storing application logs

2. Coordinating supporting services for microservices applications

3. Deploying new microservices

4. Managing resources in Kubernetes

The correct answer is: Coordinating supporting services for microservices applications

The primary function of a Service Mesh revolves around facilitating the communication between microservices in a microservices architecture. It provides a dedicated infrastructure layer that allows different services to talk to each other, managing how they interact, connect, and secure these communications. This layer often handles concerns such as service discovery, traffic management, load balancing, failure recovery, metrics, and monitoring, which are crucial in a microservices environment. By coordinating supporting services, the Service Mesh ensures that requests between services are efficiently routed, making it easier to manage complex inter-service communications. This enables developers to focus more on the business logic of their applications rather than on the intricacies of network communication and service interactions. In contrast, storing application logs is a distinct function typically handled by logging systems or tools instead of a Service Mesh. Deploying new microservices is generally part of a CI/CD (Continuous Integration/Continuous Deployment) pipeline and is not a core responsibility of the Service Mesh. Managing resources in Kubernetes pertains to orchestration and infrastructure management rather than the specialized communication functionalities that a Service Mesh provides.