C# Online Quiz


Following quiz provides Multiple Choice Questions (MCQs) related to C#. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - We can use reserved keywords as identifiers in C# by prefixing them with @ character?

A - true

B - false

Answer : A

Explanation

if you want to use these keywords as identifiers, you may prefix the keyword with the @ character.

Answer : A

Explanation

When a value type is converted to object type, it is called boxing.

Q 3 - Which of the following converts a type to a 32-bit integer in C#?

A - ToDecimal

B - ToDouble

C - ToInt16

D - ToInt32

Answer : D

Explanation

ToInt32() method converts a type to a 32-bit integer.

Q 4 - Which of the following operator returns the size of a data type in C#?

A - sizeof

B - typeof

C - &</a>

D - *

Answer : A

Explanation

sizeof() operator returns the size of a data type.

Q 5 - Which of the following method copies the reference to the memory location of an argument into the formal parameter?

A - Value parameters

B - Reference parameters

C - Output parameters

D - None of the above.

Answer : B

Explanation

Reference parameters method copies the reference to the memory location of an argument into the formal parameter.

Q 7 - Which of the following is the default access specifier of a class member function?

A - Private

B - Public

C - Protected

D - Internal

Answer : A

Explanation

Default access for the class member function is Private.

Q 8 - C# does not support multiple inheritance.

A - true

B - false

Answer : A

Explanation

C# does not support multiple inheritance.

Q 9 - Which of the following preprocessor directive defines a sequence of characters as symbol in C#?

A - define

B - undef

C - region

D - endregion

Answer : A

Explanation

#define: It defines a sequence of characters, called symbol.

Q 10 - Which of the following preprocessor directive lets you specify a block of code that you can expand or collapse when using the outlining feature of the Visual Studio Code Editor in C#?

A - warning

B - region

C - line

D - error

Answer : B

Explanation

#region − It lets you specify a block of code that you can expand or collapse when using the outlining feature of the Visual Studio Code Editor.

csharp_questions_answers.htm
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