.NET Interview Question and Answers
.NET Interview Question and Answers: .NET is a free, open-source software development framework created by Microsoft that supports a wide range of programming languages. It provides a consistent programming model, libraries, and runtime environment for building and deploying applications on Windows-based operating systems.
.NET Interview Question and Answers: .NET includes a large class library, which contains reusable code for common programming tasks, such as string manipulation, input/output operations, and network communication. Additionally, .NET includes several tools and technologies for developing a variety of applications, including desktop applications, web applications, and mobile applications. The framework is also designed to work with different development environments, such as Visual Studio and Visual Studio Code, making it a popular choice for developers across different industries. Here we are Providing Important .NET Interview Question and Answers.
Q1. What is .NET Framework?
Answer: .NET Framework is a software development framework that provides a programming model, libraries, and runtime environment for building and running applications on Windows-based operating systems.
Q2. What is the difference between .NET Framework and .NET Core?
Answer: .NET Framework is a Windows-only framework while .NET Core is cross-platform and runs on Windows, Linux, and macOS. .NET Core is also open-source while .NET Framework is not.
Q3. What is C#?
Answer: C# is an object-oriented programming language developed by Microsoft. It is a modern, simple, and type-safe language that is used to develop a wide range of applications, including web applications, desktop applications, and games.
Q4. What is ASP.NET?
Answer: ASP.NET is a web application framework developed by Microsoft that allows developers to build dynamic web applications, web services, and websites using the .NET Framework.
Q5. What is the difference between ASP.NET Web Forms and ASP.NET MVC?
Answer: ASP.NET Web Forms is a traditional web development model that uses server-side controls and a page-based approach to building web applications. ASP.NET MVC, on the other hand, is a modern web development framework that uses a model-view-controller (MVC) pattern to separate application logic and presentation.
Q6. What is LINQ?
Answer: LINQ (Language-Integrated Query) is a set of features in C# and Visual Basic .NET that provides a uniform way to query data from different data sources, such as databases, XML documents, and collections.
Q7. What is Entity Framework?
Answer: Entity Framework is an object-relational mapping (ORM) framework that allows developers to work with databases using .NET objects. It simplifies database programming by eliminating the need for most of the data access code that developers would otherwise have to write.
Q8. What is the difference between abstract classes and interfaces?
Answer: Abstract classes are classes that cannot be instantiated and can contain both abstract and non-abstract methods. Interfaces, on the other hand, are collections of abstract methods and do not contain any implementation code.
Q9. What is the difference between boxing and unboxing in C#?
Answer: Boxing is the process of converting a value type (such as an int) to a reference type (such as an object). Unboxing is the opposite process, where a boxed value type is converted back to its original value type.
Q10. What is the difference between the ref and out keywords in C#?
Answer: Both ref and out are used to pass parameters by reference. However, the main difference is that ref parameters must be initialized before they are passed to a method, while out parameters do not need to be initialized and must be assigned a value inside the method.
Other Interview Question and Answers :