Raj Coaching Institute Interview Questions and Answers

Microservices offer benefits such as scalability, flexibility, and easier maintenance.

• Scalability: Microservices allow for individual components to be scaled independently, leading to better resource utilization.

• Flexibility: Each microservice can be developed, deployed, and updated independently, allowing for more flexibility in the development process.

• Easier maintenance: With microservices, it is easier to identify and fix issues as each service is isolated and has its own c...read more

ViewBag and ViewData are used in ASP.NET MVC to pass data from controller to view.

• ViewBag is a dynamic property that allows you to pass data from controller to view.

• ViewData is a dictionary object that allows you to pass data from controller to view.

• ViewBag is a dynamic object while ViewData is a dictionary object.

• Example: ViewBag.Title = 'Home Page'; ViewData['Message'] = 'Welcome to my website';

Dependency Injection is a design pattern where components are given their dependencies rather than creating them internally.

• Allows for better code reusability and testability

• Reduces coupling between components

• Promotes separation of concerns

• Examples: Constructor Injection, Setter Injection, Interface Injection

Solid Principles are a set of five design principles for writing clean, maintainable, and scalable code.

• Single Responsibility Principle: A class should have only one reason to change.

• Open/Closed Principle: Classes should be open for extension but closed for modification.

• Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness.

• Interface Segregation Principle: Clients should not be fo...read more

.Net Core is a free, open-source, cross-platform framework for building modern, cloud-based, internet-connected applications.

• Developed by Microsoft as the successor to the .NET Framework

• Supports multiple operating systems like Windows, macOS, and Linux

• Provides high performance and scalability for web applications

• Includes a modular and lightweight runtime called CoreCLR

• Allows developers to use C#, F#, and Visual Basic for development

CORS stands for Cross-Origin Resource Sharing, a security feature that allows servers to specify who can access their resources.

• CORS is a security feature implemented by browsers to prevent unauthorized access to resources on a different origin.

• It allows servers to specify which origins are allowed to access their resources through HTTP headers.

• CORS is commonly used to enable cross-origin requests in web applications, such as AJAX requests from a different domain.

• Without CORS...read more

Middleware is software that acts as a bridge between an application's front end and back end, allowing them to communicate and interact.

• Middleware can handle tasks such as authentication, logging, error handling, and routing.

• It can be used to modify incoming requests or outgoing responses.

• Examples of middleware include Express.js middleware in Node.js applications and ASP.NET middleware in .NET applications.