What is the primary purpose of exception handling in a NestJS backend application?
To gracefully handle and respond to unexpected errors during request processing.
To define middleware functions for request-response cycles.
To enforce strict data typing in controller methods.
To handle database migrations and schema changes.
How would you define a route parameter named 'id' in a NestJS route path?
/users/{id}
/users?id=value
/users/:id
/users/<id>
Which of the following best describes NestJS?
A database management system for storing application data
A cloud computing platform for deploying and scaling applications
A server-side framework for building efficient and scalable applications
A front-end framework for building user interfaces
Which of these features is NOT a primary advantage of using NestJS?
Leverages TypeScript for improved code structure and maintainability
Provides a command-line interface (CLI) for easy project setup
Encourages code organization through modules and providers
Directly renders dynamic user interfaces in the browser
What is the purpose of the return statement in a NestJS controller method?
return
To define the route path
To send the response to the client
To handle errors within the route
To specify middleware for the route
What design pattern does NestJS heavily rely on for structuring code?
Observer
Singleton
Dependency Injection
Factory Method
When using @Inject(), what should you provide as the argument?
@Inject()
The string 'inject'.
The class name of the dependency.
An instance of the dependency.
The injection token of the dependency.
Which decorator is used to define a controller in NestJS?
@Module()
@Controller()
@Component()
@Injectable()
After installing the NestJS CLI, what command is used to initiate a new NestJS project?
nestjs create-app my-app
create-react-app my-nestjs-project
nest new project-name
npm init nestjs-app
What is the purpose of dependency injection in NestJS?
To provide a mechanism for creating and injecting dependencies into classes.
To manage database connections.
To define the application's routing logic.
To handle errors gracefully.