.Net and C# Interview Questions:-What are the various questions asked in C# and .NET interview?


The following are the 4 basics section for the interview purpose and below is the diagram to understand in better manner.

  • .NET basics
  • New Technologies
  • Architecture
  • Process

.NET basics include the questions on the following sections.

  • Basics of .NET OOPS
  • SQL Server
  • Web Services

New Technologies includes the questions on the following sections.

  • WCF
  • WPF/Silverlight
  • LINQ/Entity framework
  • Azure
  • WWF

Architecture includes the questions on the following sections.

  • Design Patterns
  • UML
  • Documentation
  • Requirement to design

Process includes the questions on the following sections.

  • Agile Estimation
  • FPA
  • CMMI
  • Six Sigma

.NET basics

Following questions are related to fundamentals of .NET.

  • What is CLR, CTS, CTS, IL Code?
  • What is Value type, Reference type and Stack, Heap Memory?
  • What is Garbage Collector and working of Garbage Collector?
  • What are GAC, Delegate, Event, and JIT?

Following questions are related to object oriented programming system

  • Why we need OOPS concept?
  • What are the different Principals of OOPS?
  • How to implement Abstraction, Encapsulation, Inheritance and
  • What are Abstract Class and Interface and differences? What are the
    Classes and Object?

Following questionsis related toSQL Server.

  • What are SQL Queries, Sub Queries?
  • What are Joins and its different types?
  • What are Normalization, Denormalization and Performance Tuning?
  • What are Indexes, Clustered Indexes?

Following questions is related to ADO.NET.

  • What are Dataset, Data Reader and Data Adapter?
  • What are Connection Object and Connection String?

Following questions is related to ASP.NET.

  • What are the Session Variable, Application and Cache Object?
  • What isServer.Transfer and Response.Redirect?
  • Difference between Server.Transfer and Response.Redirect?
  • What is Authentication and Authorization?

Following questions is related to Web Services.

  • What is WSDL?
  • What are ASMX, SOAP?

New Technologies

Following questions is related to WCF.

  • What are Operation Contract, Service Contract and Data Contract?
  • What is Data Member?
  • What are Address Binding and Contract Binding?
  • What do you mean End points?

Following questions is related toWPF/Silverlight.

  • What are XAML, XAP?
  • What is Silverlight Architecture?
  • What is MVVM pattern and RIA Services.

Following questions is related toLINQ/Entity framework.

  • What are the three main components on LINQ?
  • What is the use LINQ and Entity Framework?
  • What are Data Context Object and Entity Object?
  • What are LINQ DBML and LINQ EDMX?

Following questions is related toAzure.

  • What is Cloud Computing?
  • What are blobs, tables and Queues?

Following questions is related toWWF.

  • What areSequential Workflow and State Machine Workflow?


Following questions is related to Design Pattern.

  • What is Factory Design Pattern?
  • What areSingleton Design Pattern and Iterator?

Following questions is related to MVC, MVP and MVVM.

  • Define MVC, MVP and MVVM?
  • What is MVC template and when to use?

Following questions is related toUML.

  • What are Use cases?
  • What is Activity diagram and Class diagram?

Following questions is related toDocumentation.

  • What areRequirement document and Design document?
  • What is test plan?

Following questions is related toRequirement Design.

  • How will you go from Requirement to Design?


Following questions is related toAgile.

  • What are Scrum Backlog Template and Simple Backlog Template?

Following questions is related toEstimation FPA.

  • What are EI, EO, EQ and EIF?

Following questions is related toCMMI.

  • What is meant by Key Process Area (KPA)?
  • What are the different five level of CMMI?

Following questions is related toSix Sigma.

  • What is Six Sigma?
  • What is the importance’s of Six Sigma?
  • What are Six Sigma Yellow Belt and Black Belt?


Please click here to see .NET and C# interview questions and answers


About c# and .NET Interview questions

This blog is for developers who want to crack .NET and C# interviews. It has all tips and tricks needed to crack .NET interviews , C# interview , SQL Server interview , Java interview , WCF Interview , Silverlight interview , WPF interview , LINQ interview , Entity framework Interview. Do not forget to watch our Learn step by step video series. Learn MVC in 16 hours:- https://www.youtube.com/watch?v=Lp7nSImO5vk Learn AngularJS Step by Step:- https://www.youtube.com/watch?v=0kmdjqgO9IY Learn Design Pattern in 8 hours:- https://www.youtube.com/watch?v=YDobmucohqk Learn C# and .NET in 60 days:- https://www.youtube.com/watch?v=yh2SrzCkNQA Learn MSBI in 32 hours:- https://www.youtube.com/watch?v=mGPJx3ocFgg Learn SharePoint Step by Step in 8 hours:- https://youtu.be/C2fW76SwJNU
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