Core Spring Boot Test 4

How do you define nested properties in a YAML configuration file?

What is the default scope of a bean in a Spring Boot application?

Which of the following is true regarding @Service and @Repository annotations?

How can you set a default value for a query parameter?

Identify the injection type in the following code:

@Component
public class ServiceA {}

@Component
public class ServiceB {
    @Autowired
    private ServiceA serviceA;
}

Which value will be injected into port when the "prod" profile is active?

server:
  port: 8080
---
spring:
  profiles: prod
server:
  port: 9090

@Value("${server.port}")
private int port;

How can you expose Actuator endpoints on a separate port than the application itself?

What is the effect of using @RestControllerAdvice instead of @ControllerAdvice?

@RestControllerAdvice
public class GlobalRestHandler {
    @ExceptionHandler(IllegalArgumentException.class)
    public Map<String, String> handleIllegalArgs(IllegalArgumentException ex) {
        Map<String, String> map = new HashMap<>();
        map.put("error", ex.getMessage());
        return map;
    }
}

Consider the following logback-spring.xml snippet. What does it do?

<logger name="com.example" level="DEBUG"/>
<root level="INFO">
    <appender-ref ref="CONSOLE"/>
</root>

What is the base URL for the application with the following configuration?

server:
  port: 8081
  servlet:
    context-path: /api

In Spring Boot, which of the following has the highest precedence when determining a configuration value?

How does Spring Boot's architecture promote the development of microservices?

What does the following code do?

@Bean
@ConditionalOnMissingBean
public MyService myService() {
    return new MyService();
}

Which HTTP method does the following handler respond to?

@RestController
@RequestMapping("/api")
public class ProductController {
    @PostMapping("/product")
    public String addProduct(@RequestBody String name) {
        return "Added product: " + name;
    }
}

Which of the following is a key advantage of constructor injection over setter or field injection?

What is the default profile in Spring Boot if no profile is explicitly activated?

What will this code create in a Spring Boot application?

@Component
@Endpoint(id = "custom")
public class CustomEndpoint {
    @ReadOperation
    public String info() {
        return "Custom Endpoint Info";
    }
}

What will happen if an unhandled exception occurs in a Spring Boot controller and no @ControllerAdvice is defined?

@RestController
public class SampleController {
    @GetMapping("/test")
    public String test() {
        throw new RuntimeException("Something went wrong!");
    }
}

How do you configure logging levels in application.yml?

Which of the following is true regarding embedded server thread configuration in Spring Boot?