Spring Cloud Spring Cloud Service Discovery & Registration 2

Question 1

Which Spring Cloud project provides service discovery support using HashiCorp Consul?

Accepted Answer

Spring Cloud Consul

Answer

Spring Cloud Consul integrates with HashiCorp Consul for service discovery, distributed configuration, and health checking.

Question 2

What is the purpose of the `spring.application.name` property in a Spring Cloud microservice?

Accepted Answer

Acts as the service ID used for registration and discovery

Answer

spring.application.name serves as the virtual hostname and service ID under which the application registers with the discovery server.

Question 3

Which interface must be implemented to create a custom Spring Cloud ServiceRegistry?

Accepted Answer

org.springframework.cloud.client.serviceregistry.ServiceRegistry

Answer

The ServiceRegistry interface in Spring Cloud provides the contract for registering and deregistering service instances with a registry.

Question 4

How does Spring Cloud Kubernetes perform service discovery within a Kubernetes cluster?

Accepted Answer

It queries the Kubernetes API server for Services and Endpoints

Answer

Spring Cloud Kubernetes uses the Kubernetes API server to discover services and their endpoints, enabling native Kubernetes-based service discovery.

Question 5

What does the `@LoadBalanced` annotation do when applied to a RestTemplate bean in Spring Cloud?

Accepted Answer

Intercepts requests to resolve logical service names via the discovery client

Answer

@LoadBalanced marks a RestTemplate so that a LoadBalancerInterceptor is applied, translating service names like http://my-service/api into real IP/port using the discovery client.

Spring Cloud Practice Test

Spring Cloud Practice Test

Spring Cloud Spring Cloud Service Discovery & Registration 2