.NET Programming MCQs with answers Page - 26

Here, you will find a collection of MCQ questions on .NET Programming. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Ram Sharma • 3.40K Points
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Q. What is the default scope of a class in C# if no access modifier is provided?

  • (A) public
  • (B) private
  • (C) internal
  • (D) protected

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Ram Sharma • 3.40K Points
Extraordinary

Q. Which LINQ method ensures only unique elements are returned?

  • (A) Distinct()
  • (B) GroupBy()
  • (C) Select()
  • (D) Where()

R

Ram Sharma • 3.40K Points
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Q. Which C# keyword is used to define a constant value?

  • (A) final
  • (B) static
  • (C) const
  • (D) readonly

R

Ram Sharma • 3.40K Points
Extraordinary

Q. Which HTTP status code indicates 'Not Found'?

  • (A) 200
  • (B) 302
  • (C) 500
  • (D) 404

R

Ram Sharma • 3.40K Points
Extraordinary

Q. What is `Tuple.Create()` used for?

  • (A) To create anonymous classes
  • (B) To create reference types
  • (C) To return multiple values from a method
  • (D) To define a struct

R

Ram Sharma • 3.40K Points
Extraordinary

Q. Which attribute is used to validate email addresses in a model?

  • (A) [EmailValidator]
  • (B) [Email]
  • (C) [EmailCheck]
  • (D) [EmailAddress]

R

Ram Sharma • 3.40K Points
Extraordinary

Q. Which ASP.NET Core middleware handles errors globally?

  • (A) app.UseRouting()
  • (B) app.UseAuthorization()
  • (C) app.UseExceptionHandler()
  • (D) app.UseEndpoints()

R

Ram Sharma • 3.40K Points
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Q. What type of class cannot be instantiated directly?

  • (A) Static
  • (B) Sealed
  • (C) Abstract
  • (D) Internal

R

Ram Sharma • 3.40K Points
Extraordinary

Q. What does `ref` keyword in C# do?

  • (A) Passes value by reference
  • (B) Declares a readonly field
  • (C) Defines a reference type
  • (D) Creates a pointer

R

Ram Sharma • 3.40K Points
Extraordinary

Q. Which of the following statements about static constructors is true?

  • (A) They can take parameters
  • (B) They are called explicitly
  • (C) They run only once per type
  • (D) They can be public

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