What is true about a sealed class in C#?

Which of the following is the correct way to call method Jobs() of the UpWork class given below? class UpWork { public void Jobs(inti, Single j) { Console.Writeline(UpWork); } }

Choose the namespace in which the interface IEnumerable is declared?

Which is the correct way to find out the number of elements currently present in an ArrayListCollection called arr?

What is the purpose of the Open XML SDK 2.0?

Choose the method defined by MemberInfo:

The yield keyword is used when creating collections for iteration.

How can you instantiate the following Abstract class 'AbClass'

What is the full name of the base type of all the types in .NET?

C# provides an XML documentation comment syntax by prefacing your comment lines with...

What is the default visibility for members of classes and structs in C#?