• What are providers and how does dependency injection work in NestJS?
• What are guards in NestJS and how to implement authentication?
• What are dtos and how does validation work in NestJS?
• What are interceptors in NestJS?
• What are modules in NestJS and how do they work?
• What are pipes in NestJS?
• What are exception filters in NestJS?
• What is middleware in NestJS and how does it differ from guards?
• What is NestJS and what problems does it solve?
• How does NestJS integrate with TypeORM?
• What are controllers in NestJS?
• How to test a NestJS application?
• How to manage configuration in NestJS with configmodule?
• How to document a NestJS API with Swagger?
• What are lifecycle hooks in NestJS?
• How to create and use custom decorators in NestJS?
• How do Microservices work in NestJS?
• How to implement WebSocket Gateways in NestJS?
• What is CQRS pattern and how to implement it in NestJS?
• How to implement queue processing with Bull in NestJS?
• How to implement caching strategies in NestJS?
• How to implement authentication with Passport in NestJS?
• How to build a GraphQL API with NestJS?
• How to implement Role-Based Access Control (RBAC) in NestJS?
• What are Dynamic Modules in NestJS and when to use them?