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.

1. NET basics

2. New Technologies

3. Architecture

4.Process 

1. .NET basics include the questions on the following sections.

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

2. New Technologies includes the questions on the following sections.

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

3. Architecture includes the questions on the following sections.

• Design Patterns
• MVC MVP MVVM
• UML
• Documentation
• Requirement to design

4. 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 (OOPS).

• Why we need OOPS concept?
• What are the different Principals of OOPS?
• How to implement Abstraction, Encapsulation, Inheritance and Polymorphism?
• 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?

Architecture

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?

Process

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?