C# Online Quiz

Q 1 - Which of the following is a contextual keyword in C#?

A - get

B - set

C - add

D - All of the above.

Q 2 - Which of the following is correct about reference type variables in C#?

A - The reference types do not contain the actual data stored in a variable.

B - They contain a reference to the variables.

C - Example of built-in reference types are: object, dynamic, and string.

D - All of the above.

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

A - ToDecimal

B - ToDouble

C - ToInt16

D - ToInt32

Q 4 - Which of the following converts a type to an unsigned long type in C#?

A - ToType

B - ToUInt16

C - ToUInt32

D - ToString

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?

A - Public

B - Private

C - Protected

D - Internal

Q 6 - Which of the following is correct about null coalescing operator in C#?

A - The null coalescing operator is used with the nullable value types and reference types.

B - It is used for converting an operand to the type of another nullable (or not) value type operand, where an implicit conversion is possible.

C - If the value of the first operand is null, then the operator returns the value of the second operand, otherwise it returns the value of the first operand.

D - All 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 - The comparison operators can be overloaded.

A - true

B - false

Q 9 - Which of the following preprocessor directive allows you to undefine a symbol in C#?

A - define

B - undef

C - region

D - endregion

Q 10 - The finally block is used to execute a given set of statements, whether an exception is thrown or not thrown.

A - true

B - false