What is the purpose of the @nestjs/testing package in NestJS?
@nestjs/testing
Provides utilities and helpers specifically designed for testing NestJS applications
Enables integration with external continuous integration and delivery (CI/CD) pipelines
Offers tools for performance profiling and optimization of NestJS code
Facilitates the deployment of NestJS applications to various cloud platforms
In JWT authentication, what does JWT stand for?
Just Write Tests
Java Web Token
JSON Web Token
JavaScript Web Token
What is a common use case for a class decorator in NestJS?
Adding common properties or methods to all instances of a class.
Defining custom route paths for controller methods.
Validating the structure of request payloads.
Modifying the response sent back to the client.
Which testing type provides the most comprehensive coverage by simulating real user interactions with a running NestJS application?
End-to-End (E2E) Testing
Regression Testing
Unit Testing
Integration Testing
In Mongoose, what is a Schema?
A method for handling HTTP requests
A definition of the structure and data types for documents in a collection
A representation of a database connection
A configuration file for a NestJS application
In NestJS, which decorator is used to define a microservice?
@Injectable()
@Controller()
@Module()
@Microservice()
What is the primary function of a Pipe in NestJS?
To define middleware for routing HTTP requests.
To handle database queries and operations.
To manage dependency injection within the application.
To transform input data into the desired format.
What is the primary purpose of a Guard in NestJS?
To handle database interactions.
To render HTML templates on the server.
To define the structure of a request body.
To control access to routes or resources based on certain conditions.
What is the recommended approach for handling exceptions in a production-ready NestJS application?
Use a combination of global and custom exception filters for a layered approach.
Implement only global exception filters for a centralized approach.
Disable exception handling altogether for optimal performance.
Rely solely on the default NestJS error handling mechanism.
Which NestJS module is essential for creating TCP-based microservices?
@nestjs/common
@nestjs/platform-express
@nestjs/microservices
@nestjs/core