What is the core purpose of NestJS?
Developing efficient and scalable server-side applications
Managing and interacting with databases directly
Automating code deployment and server configuration
Building interactive front-end web applications
How are controllers related to modules in NestJS?
Modules are defined within controllers.
Controllers and modules are unrelated concepts in NestJS.
Controllers are defined within modules, and their scope is limited to that module.
Controllers exist independently of modules.
How do you define middleware in NestJS?
By using the @Middleware() decorator on a class.
@Middleware()
By creating a function with a specific signature.
By configuring middleware directly in the main.ts file.
main.ts
By creating a class that implements the CanActivate interface.
CanActivate
Can a Controller access a Service's methods in NestJS?
Yes, by using static methods of the Service.
No, Controllers and Services are completely isolated.
Only if the Controller and Service are defined in the same module.
Yes, by injecting the Service into the Controller's constructor.
Which HTTP method does the @Post() decorator handle?
@Post()
PUT
POST
DELETE
GET
What is the purpose of the useFactory property in a FactoryProvider?
useFactory
FactoryProvider
To provide a static value for the provider.
To specify the class that the factory function should return.
To configure the lifecycle hooks of the provider.
To define a function that creates and returns an instance of the provider.
What is the purpose of the @Res() decorator in NestJS?
@Res()
To access route parameters
To define a new route
To handle asynchronous operations
To directly interact with the response object
How can you define multiple route paths for a single controller method in NestJS?
It's not possible to have multiple paths for one method
By using an array of strings as the route path
By defining multiple methods for each path
By using the @Routes() decorator
@Routes()
Which decorator is used to define a controller in NestJS?
@Injectable()
@Controller()
@Component()
@Module()
What is the advantage of using built-in HTTP exception filters in NestJS?
They are primarily used for handling authentication and authorization errors.
They provide a streamlined way to handle common HTTP errors with predefined responses.
They are only applicable for database-related exceptions.
They allow you to bypass the need for exception handling altogether.