C# (C Sharp) MCQs with answers Page - 27

Here, you will find a collection of MCQ questions on C# (C Sharp). Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. What is the C# keyword which is used to change data and behaviour of a base class by replacing a member of the base class with a new derived member?

  • (A) overrides
  • (B) protected
  • (C) base
  • (D) new

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Q. Which keyword is used to declare an interface in C#?

  • (A) interface
  • (B) Interface
  • (C) implement
  • (D) Implement

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Q. In C#, by default, the default interface methods are ___.

  • (A) virtual
  • (B) sealed
  • (C) private
  • (D) public

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Q. In C#, the objects created using new operator are stored in ___.

  • (A) Cache Memory
  • (B) Stack Memory
  • (C) Heap Memory
  • (D) None of the above

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Q. Which of the following cannot be used to declare an interface in C#?

  • (A) Methods
  • (B) Properties
  • (C) Events
  • (D) Structures

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Q. Which of the access specifier is used in interface in C#?

  • (A) private
  • (B) public
  • (C) protected
  • (D) All of the above

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Q. Which type of class does not have its own objects but acts as a base class for its subclass in C#?

  • (A) Abstract Class
  • (B) Static Class
  • (C) Sealed Class
  • (D) Protected Class

A

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Q. Which modifier is used to while redefining an abstract method by a derived class in C#?

  • (A) Overloads
  • (B) New
  • (C) Overrides
  • (D) Virtual

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Q. A C# pointer is used to store the ___ of another type.

  • (A) Value
  • (B) Memory address
  • (C) Size of the type
  • (D) Reference of the variable

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Q. C# pointer can only be declared to hold the memory address of ___.

  • (A) value types and arrays
  • (B) reference types
  • (C) pointer types
  • (D) reference and pointer types

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