Spring Cloud Technology & Digital Applications 3

Question 1

Which Spring Cloud Stream binder is used to integrate with Apache Kafka?

Accepted Answer

spring-cloud-stream-binder-kafka

Answer

The spring-cloud-stream-binder-kafka dependency wires Spring Cloud Stream to an Apache Kafka broker.

Question 2

What is the role of the Spring Cloud Bus?

Accepted Answer

Broadcasts configuration-change events across multiple service instances

Answer

Spring Cloud Bus links nodes of a distributed system via a message broker so that config refresh events can be broadcast to all instances at once.

Question 3

Which annotation on a Feign client method tells Spring Cloud OpenFeign to use a specific path variable?

Accepted Answer

@PathVariable

Answer

@PathVariable maps a URI template variable to a method parameter in a Feign client interface, just as in Spring MVC.

Question 4

In Spring Cloud Kubernetes, what Kubernetes resource is used as the equivalent of a Config Server to supply application properties?

Accepted Answer

ConfigMap

Answer

Spring Cloud Kubernetes reads ConfigMaps and Secrets to inject externalized configuration into Spring Boot applications running in a cluster.

Question 5

What does setting `spring.cloud.gateway.discovery.locator.enabled=true` accomplish?

Accepted Answer

Automatically creates routes for every registered service in the discovery registry

Answer

Discovery locator integration tells Spring Cloud Gateway to auto-generate routes for each service instance found in the service registry.

Spring Cloud Practice Test