All questions in C#:

using System;

using System.Linq;

using System.Data.Linq;

using System.Xml.Linq;

using System.Collections;

and that the following array is defined:

string[] colors = { ""green"", ""brown"", ""blue"", ""red"" };

var query = from c in colors where c.Length > 3 orderby c.Length select c;

what type is variable query?

int

string

IEnumerable

IEnumerable

IQueryable

IQueryable

In current .NET Framework, what assembly must be included in a project to use the SoundPlayer class?

System

System.Media

corelib

Sound

In Generic Method implementation, the ________ clause specifies the type constraint for type parameter T.

when

constraint

where

cnstr

All arrays implicitly inherit from which generic interface?

IList

IEnumerable

IEnumerator

a and b

a and c

To avoid having to use fully qualified referenced classes, you could:

Add a reference to the class.

Add an import statement for the class.

Add a using directive.

Inherit from the class.

Package the classes in the same solution.