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.
Q 1 - Which of the following is correct about C#?
A - C# is a modern, general-purpose, object-oriented programming language developed by Microsoft.
B - C# was developed by Anders Hejlsberg and his team during the development of .Net Framework.
C - C# is designed for Common Language Infrastructure (CLI).
Answer : D
Explanation
All of the above options are correct.
Q 2 - Which of the following defines boxing correctly?
A - When a value type is converted to object type, it is called boxing.
B - When an object type is converted to a value type, it is called boxing.
Answer : A
Explanation
When a value type is converted to object type, it is called boxing.
Q 3 - Which of the following converts a floating point or integer type to a decimal type in C#?
Answer : A
Explanation
ToDecimal() method converts a floating point or integer type to a decimal type.
Q 4 - Which of the following operator casts without raising an exception if the cast fails in C#?
Answer : C
Explanation
as operator casts without raising an exception if the cast fails.
Q 5 - Which of the following access specifier in C# allows a class to expose its member variables and member functions to other functions and objects in the current assembly?
Answer : D
Explanation
Internal access specifier allows a class to expose its member variables and member functions to other functions and objects in the current assembly.
Q 6 - Which of the following property of Array class in C# gets a 64-bit integer, the total number of elements in all the dimensions of the Array?
Answer : B
Explanation
LongLength gets a 64-bit integer that represents the total number of elements in all the dimensions of the Array.
Q 7 - Which of the following is true about C# structures vs C# classes?
A - Classes are reference types and structs are value types.
B - Structures do not support inheritance.
Answer : D
Explanation
All of the above options are correct.
Q 8 - Which of the following is the correct about interfaces in C#?
A - Interfaces are declared using the interface keyword.
Answer : C
Explanation
Both of the above options are correct.
Q 9 - Which of the following preprocessor directive specifies the end of a conditional directive in C#?
Answer : B
Explanation
#endif − Specifies the end of a conditional directive.
Q 10 - Which of the following preprocessor directive allows generating a level one warning from a specific location in your code in C#?
Answer : A
Explanation
#warning − It allows generating a level one warning from a specific location in your code.
