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 contextual keyword in C#?

A - get

B - set

C - add

D - All of the above.

Answer : D

Explanation

All of the above options are contextual 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 specified type in C#?

A - ToType

B - ToSbyte

C - ToSingle

D - ToString

Answer : A

Explanation

ToType() method converts a type to a specified type.

Q 4 - Which of the following operator represents a conditional operation in C#?

A - ?:

B - is

C - as

D - *

Answer : A

Explanation

?: operator represents a conditional operation.

Q 5 - Which of the following method copies the actual value of an argument into the formal parameter of the function?

A - Value parameters

B - Reference parameters

C - Output parameters

D - None of the above.

Answer : A

Explanation

Value parameters method copies the actual value of an argument into the formal parameter of the function.

Q 6 - Which of the following property of Array class in C# checks whether the Array is readonly?

A - IsFixedSize

B - IsReadOnly

C - Length

D - None of the above.

Answer : B

Explanation

IsReadOnly gets a value indicating whether the Array is readonly.

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

A - Private

B - Public

C - Protected

D - Internal

Answer : D

Explanation

Default access specifier for a class type is Internal.

Answer : D

Explanation

All of the above options are correct.

Q 9 - Which of the following preprocessor directive allows generating an error from a specific location in your code in C#?

A - define

B - region

C - line

D - error

Answer : D

Explanation

#error − It allows generating an error from a specific location in your code.

Q 10 - The System.SystemException class is the base class for all predefined system exception in C#?

A - true

B - false

Answer : A

Explanation

The System.SystemException class is the base class for all predefined system exception.

csharp_questions_answers.htm
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