C# Online Quiz

Q 1 - Which of the following keyword is used for including the namespaces in the program in C#?

A - imports

B - using

C - exports

D - None of the above.

Q 2 - Value type variables in C# are derived from the class System.ValueType?

A - true

B - false

Q 3 - Which of the following converts a type to a 64-bit integer in C#?

A - ToInt64

B - ToSbyte

C - ToSingle

D - ToInt32

Q 4 - Which of the following operator creates a pointer to a variable in C#?

A - sizeof

B - typeof

C - &

D - *

Q 5 - Which of the following method copies the reference to the memory location of an argument into the formal parameter?

A - Value parameters

B - Reference parameters

C - Output parameters

D - None of the above.

Q 6 - Which of the following is true about C# structures?

A - Unlike classes, structures cannot inherit other structures or classes.

B - Structure members cannot be specified as abstract, virtual, or protected.

C - A structure can implement one or more interfaces.

D - All of the above.

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

A - A class constructor is a special member function of a class that is executed whenever we create new objects of that class.

B - A constructor has exactly the same name as that of class and it does not have any return type.

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 creating a compound conditional directive in C#?

A - elif

B - define

C - if

D - else

Q 10 - Which of the following is true about System.ApplicationException class in C#?

A - The System.ApplicationException class supports exceptions generated by application programs.

B - Exceptions defined by the programmers should derive from this class.

C - Both of the above.

D - None of the above.