C# Online Quiz

Q 1 - Which of the following is correct about variable naming conventions in C#?

A - A name must begin with a letter that could be followed by a sequence of letters, digits (0 - 9) or underscore.

B - The first character in an identifier cannot be a digit.

C - Both of the above.

D - None of the above.

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.

C - Both of the above.

D - None of the above.

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

A - ToType

B - ToSbyte

C - ToSingle

D - ToString

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

A - sizeof

B - typeof

C - &</a>

D - *

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

Q 6 - Which of the following property of Array class in C# gets a 32-bit integer, the total number of elements in all the dimensions of the Array?

A - Rank

B - LongLength

C - Length

D - None of the above.

Q 7 - Which of the following is the correct about class member functions?

A - A member function of a class is a function that has its definition or its prototype within the class definition similar to any other variable.

B - It operates on any object of the class of which it is a member, and has access to all the members of a class for that object.

C - Both of the above.

D - None of the above.

Q 8 - Operator overloading is a kind of dynamic polymorphism.

A - true

B - false

Q 9 - Which of the following preprocessor directive allows testing a symbol or symbols to see if they evaluate to true in C#?

A - define

B - undef

C - if

D - elif

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