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 - Which of the following is a reserved keyword in C#?

A - abstract

B - as

C - foreach

D - All of the above.

Answer : D

Explanation

All of the above options are reserved keywords.

Q 2 - Which of the following converts a type to a byte value in C#?

A - ToSingle

B - ToByte

C - ToChar

D - ToDateTime

Answer : B

Explanation

ToByte() method converts a type to a byte.

Q 3 - Which of the following converts a type to a signed byte type in C#?

A - ToInt64

B - ToSbyte

C - ToSingle

D - ToInt32

Answer : B

Explanation

ToSbyte() method converts a type to a signed byte type.

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 access specifier in C# allows a class to hide its member variables and member functions from other functions and objects?

A - Public

B - Private

C - Protected

D - Internal

Answer : B

Explanation

Private access specifier allows a class to hide its member variables and member functions from other functions and objects.

Answer : D

Explanation

All of the above options are correct.

Q 8 - Function overloading is a kind of static polymorphism.

A - true

B - false

Answer : A

Explanation

Function overloading is a kind of static polymorphism.

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.

Answer : C

Explanation

Both of the above options are correct.

csharp_questions_answers.htm
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