# Exception Handling (Spring Boot) > Exception handling with @ControllerAdvice, @ExceptionHandler, @ResponseStatus, error standardization - 25 interview questions - Mid-Level - [Interview Questions: Spring Boot](https://sharpskill.dev/en/technologies/spring-boot/interview-questions.md) ## 1. What is @ControllerAdvice in Spring MVC? **Answer** @ControllerAdvice allows centralizing exception handling for all application controllers. This annotation creates a global component that intercepts exceptions thrown by any @Controller or @RestController. This avoids duplicating error handling logic in each controller and promotes error response consistency. ## 2. How to handle a specific exception in a controller? **Answer** @ExceptionHandler allows defining a method that handles one or more specific exceptions in a controller or @ControllerAdvice. The annotated method is automatically invoked when the specified exception is thrown. It's possible to return a ResponseEntity to control the HTTP status and response body. ## 3. What is the purpose of @ResponseStatus on an exception class? **Answer** @ResponseStatus on a custom exception allows automatically mapping this exception to a specific HTTP status code. When the exception is thrown, Spring automatically returns the indicated HTTP status without requiring an @ExceptionHandler. This approach simplifies code for simple exceptions that directly correspond to an HTTP status. ## 22 more questions available - Which exception is thrown when validation with @Valid fails? - What is ProblemDetail in Spring 6+? 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