1:   Which version of .NET framework optional parameter is introduced?
Options:
  1. 3.0
  2. 3.5
  3. 4.0
  4. 4.5

Answer: Option 3

Explanation:

4.0 is the .NET when optional parameter is introduced in .NET Framework. With this a constructor, Methods etc can be declare as with required or optional arguments . Discuss this in Forums

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2:   var keyword is included in which version of .NET Framework?
Options:
  1. 2.0
  2. 3.0
  3. 3.5
  4. 4.0

Answer: Option 2

Explanation:

var keyword is been introduced in .NET Framework 3.0 Discuss this in Forums

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3:   LINQ is included in which version of .NET Framework?
Options:
  1. 2.0
  2. 3.0
  3. 3.5
  4. 4.0

Answer: Option 2

Explanation:

Language Integrated Query (LINQ) is been introduced in .NET framework version 3.0 Discuss this in Forums

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4:   Generics is included in which version of .NET Framework?
Options:
  1. 1.1
  2. 2.0
  3. 3.0
  4. 3.5

Answer: Option 2

Explanation:

In .NET framework version 2.0 Generics is been introduced Discuss this in Forums

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