Spring Cloud Professional Standards & Competencies 2

Question 1

Which Spring Cloud component implements the Circuit Breaker pattern to prevent cascading failures?

Accepted Answer

Spring Cloud Circuit Breaker (Resilience4j)

Answer

Spring Cloud Circuit Breaker provides an abstraction over Resilience4j to stop cascading failures by opening a circuit when error thresholds are breached.

Question 2

What is the recommended approach for externalizing configuration in a Spring Cloud microservices environment?

Accepted Answer

Use Spring Cloud Config Server backed by a Git repository

Answer

Spring Cloud Config Server with a Git-backed repository is the recommended approach for centralizing and versioning configuration across microservices.

Question 3

A developer needs distributed tracing across multiple microservices. Which Spring Cloud tool assigns a unique trace ID to a request?

Accepted Answer

Spring Cloud Sleuth / Micrometer Tracing

Answer

Spring Cloud Sleuth (now Micrometer Tracing) automatically assigns trace and span IDs to requests, enabling end-to-end distributed tracing.

Question 4

Which professional best practice should guide the naming of Spring Cloud Config Server profiles?

Accepted Answer

Use meaningful environment names like dev, staging, and prod

Answer

Using meaningful environment names (dev, staging, prod) makes configuration management understandable and maintainable across teams.

Question 5

What does the @EnableDiscoveryClient annotation signify in a Spring Cloud application?

Accepted Answer

Registers the service with a discovery server like Eureka or Consul

Answer

@EnableDiscoveryClient marks the application to register itself with and discover other services via a service registry such as Eureka or Consul.

Spring Cloud Practice Test

Spring Cloud Practice Test

Spring Cloud Professional Standards & Competencies 2