This is one of the typical .NET interview questions and has been asked in many of the mid .NET and c# interviews, also the favorable question of the interviewers where they check your skills on casting.

I use the following things for debugging c# applications using visual studio :-

The checked keyword is used to explicitly enable overflow checking for integral-type arithmetic operations and conversions.

The const keyword is used to modify a declaration of a field or local variable. It specifies that the value of the field or the local variable cannot be modified.

In this mode the users are stored in windows local user groups.

Some methods in abstract classes can have implementation.

A class which is declared inside the body of another class is called as InnerClass.

This is not one of the .NET typical interview question but as a developer you would be interested in knowing that how to add your windows application icon in to the task bar.

Visual C# 2010 introduces two interesting features called as Named and Optional Arguments.

n simple words Anonymous Methods means method which are coded inline or methods without method name.

C# and .NET Framework interview questions:- Describe Multi-targeting in .NET?