Spring Boot RestController & Request Mapping Mock Test

Question 1: CORE SPRING BOOT - @RestController Purpose

What is the primary purpose of the `@RestController` annotation in Spring Boot?

Question 2: CORE SPRING BOOT - @GetMapping vs @RequestMapping

Which statement is correct regarding `@GetMapping` and `@RequestMapping`?

Question 3: CORE SPRING BOOT - Code Snippet (@GetMapping)

What URL will return "Hello World" in the following code?

@RestController
@RequestMapping("/api")
public class HelloController {
    @GetMapping("/hello")
    public String hello() {
        return "Hello World";
    }
}

Question 4: CORE SPRING BOOT - Code Snippet (PathVariable)

What will be returned if you access `/api/user/42` in the following code?

@RestController
@RequestMapping("/api")
public class UserController {
    @GetMapping("/user/{id}")
    public String getUser(@PathVariable int id) {
        return "User ID: " + id;
    }
}

Question 5: CORE SPRING BOOT - Query Parameters with @RequestParam

Which annotation is used to extract query parameters in a Spring Boot controller?

Question 6: CORE SPRING BOOT - Code Snippet (@RequestParam)

What will `/api/user?id=10` return in the following code?

@RestController
@RequestMapping("/api")
public class UserController {
    @GetMapping("/user")
    public String getUser(@RequestParam int id) {
        return "User ID: " + id;
    }
}

Question 7: CORE SPRING BOOT - Default Values with @RequestParam

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

Question 8: CORE SPRING BOOT - Code Snippet (@PostMapping)

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;
    }
}

Question 9: CORE SPRING BOOT - Combining Path and Query Parameters

How do you correctly handle both path and query parameters in Spring Boot?

Question 10: CORE SPRING BOOT - Best Practices for REST Endpoints

Which of the following are considered best practices for REST controllers in Spring Boot?