What is the default logging framework in Spring Boot?

• Slf4j
• JUL
• Logback
• Log4j

Which annotation defines a bean in Spring Boot?

• @Entity
• @Bean
• @Component
• @Service

What does @SpringBootApplication include?

• @Autowired, @Bean, @RestController
• @Entity, @Table, @Id
• @Controller, @Service, @Repository
• @EnableAutoConfiguration, @ComponentScan, @Configuration

Which annotation is used to handle exceptions locally in a controller?

• @HandleException
• @ErrorHandler
• @ExceptionHandler
• @ControllerAdvice

Which command creates a JAR file using Maven?

• mvn run jar
• mvn install jar
• mvn jar:build
• mvn clean package

How do you enable async methods in Spring Boot?

• @EnableAsync
• @EnableThreading
• @AsyncConfig
• @EnableParallel

Which annotation is used for cross-origin requests?

• @CrossOrigin
• @EnableCors
• @AllowOrigin
• @CorsPolicy

Which class customizes Spring Security configuration?

• SecurityConfig
• WebSecurityConfigurerAdapter
• SecurityConfigurer
• AuthenticationManager

How do you secure endpoints with roles?

• @RolesAllowed
• @Secured
• @PreAuthorize
• All of the above

Which starter is used for consuming REST APIs reactively?

• spring-boot-starter-web
• spring-boot-starter-webflux
• spring-boot-starter-reactive
• spring-boot-starter-rsocket

Which Spring Cloud component provides centralized configuration?

• Eureka
• Config Server
• Gateway
• Zuul

Which tool is used for API Gateway in Spring Cloud?

• Zuul
• Spring Cloud Gateway
• Ribbon
• Feign

Which library is used for circuit breakers in Spring Boot microservices?

• Hystrix (legacy)
• Resilience4j
• Both A & B
• Ribbon

Which component handles client-side load balancing?

• Eureka
• Ribbon
• Zuul
• Config Server

What is Feign used for?

• Service discovery
• Declarative REST client
• Database connection pooling
• Circuit breaking