Dot Net Interview Questions – Set 15

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What is the difference between Server.Transfer and Response.Redirect?

These are used to redirect a user from one web page to the other one. The Response.Redirect method requests a new URL and specifies the new URL. The Server.Transfer method terminates the execution of the current page and starts the execution of a new page.

What are the most important aspects of .NET?

NET is an infrastructure that consists of multiple features like application domain, a common type system and profiling. Isolating one or two important pieces may be a challenge, but the interviewer may be looking for the answers “class library” and “Common Language Runtime.” It’s critical to make a case for why those are the most essential features. This is an opportunity to show your skills go beyond just technical because you can also apply critical thinking.

Example: “Common Language Runtime and Class library are the most important aspects of the .NET Framework. CLR provides building tools and resources that help developers set the foundation for application building. The class library holds essential classes used for providing commonly known functionality that is shareable across applications.”

What is .NET?

.NET is a developer platform to build a variety of applications for web, mobile, desktop, and IoT. It supports various languages like C#, F#, Visual Basic, J#, C++, etc. for building the applications.

Differentiate between Task and Thread in .NET.

Thread represents an actual OS-level thread, with its own stack and kernel resources, and allows the highest degree of control. You can choose to Abort() or Suspend() or Resume() a thread, and set thread-level properties, like the stack size, apartment state, or culture. While a Task class from the Task Parallel Library is executed by a TaskScheduler to return a result and allows you to find out when it finishes.

What is an IL?

IL stands for Intermediate Language. It is also known as MSIL (Microsoft Intermediate Language) or CIL (Common Intermediate Language).

All .NET source codes are first compiled to IL. Then, IL is converted to machine code at the point where the software is installed, or at run-time by a Just-In-Time (JIT) compiler.

How many languages are supported by .NET at present time?

When .NET was introduced first time, it supports many languages like VB.NET,C#,COBOL, and Perl etc. At present time it supports almost 44 languages.

What is .NET web service?

It is a component that allows publishing of the application’s function on the web to make it accessible to the public. It resides on a Web server and provides information and services using standard Web protocols such as HTTP and Simple Object Access Protocol (SOAP).

What is GAC?

GAC stands for Global Assembly Cache. Whenever CLR gets installed on the machine, GAC comes as a part of it. GAC specifically stores those assemblies which will be shared by many applications. A Developer tool called Gacutil.exe is used to add any file to GAC

List the events in the page life cycle.

Following are the events in the page life cycle:

  • Page_PreInit
  • Page_Init
  • Page_InitComplete
  • Page_PreLoad
  • Page_Load
  • Page_LoadComplete
  • Page_PreRender
  • Render

What is a cross-page posting?

Cross page posting is used to submit a form to a different page while creating a multi-page form to collect information from the user. You can specify the page you want to post to using the PostBackURL attribute.