PRSSGroup Interview Questions and Answers

Dependency injection in Dot net core is a design pattern where classes receive their dependencies from external sources rather than creating them.

• Dependency injection allows for better decoupling of components in an application.

• In Dot net core, dependency injection is built into the framework and can be easily configured in the Startup class.

• Services are registered in the ConfigureServices method of the Startup class and can be injected into controllers or other classes.

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Packages in Dot net core are collections of reusable code that can be easily distributed and managed.

• Packages contain libraries, frameworks, and tools that can be used in .NET Core applications.

• They are distributed via NuGet, a package manager for .NET.

• Packages help in managing dependencies and simplifying the development process.

• Example: Entity Framework Core is a popular package used in .NET Core applications.

I have worked with various architectures including monolithic, microservices, serverless, and event-driven.

• Monolithic architecture involves building a single, indivisible unit for an application.

• Microservices architecture breaks down the application into smaller, independent services.

• Serverless architecture allows developers to focus on writing code without worrying about infrastructure.

• Event-driven architecture enables communication between services based on events.

Request pipeline is a series of steps that a request goes through from start to finish in a software system.

• Request pipeline helps in processing and handling incoming requests efficiently.

• Each step in the pipeline performs a specific task such as authentication, validation, processing, and response generation.

• Examples of request pipeline include HTTP request processing in web servers like Apache or Nginx.

Extension methods are a way to add new methods to existing types without modifying the original type.

• Extension methods allow you to add new functionality to existing types without modifying them

• They are defined as static methods in a static class

• They must be in the same namespace as the type being extended

• Extension methods are called like regular instance methods

Request delegate is a function that handles incoming HTTP requests and generates responses.

• Request delegate is used in ASP.NET Core to process HTTP requests.

• It can be used to route requests to appropriate controllers or actions.

• Request delegates can be middleware components in the request processing pipeline.