Which of the following function prototype is perfectly acceptable?

A friend function can be used to ?

• [A] avoid arguments between classes
• [B] allow access to classes whose source code is unavailable
• [C] allow one class to access an unrelated class
• [D] increase the versatility of an overloaded operator

Which of the following statement will be correct if the function has three arguments passed to it?

• [A] The trailing argument will be the default argument.
• [B] The first argument will be the default argument.
• [C] The middle argument will be the default argument.
• [D] All the argument will be the default argument.

Which of the following statement is correct?

• [A] Constructors can have default parameters.
• [B] Constructors cannot have default parameters.
• [C] Constructors cannot have more than one default parameter.
• [D] Constructors can have at most five default parameters.

Which of the following type of function is an ideal candidate for being declared inline ?

• [A] A function that is small and is not called frequently
• [B] A function that is small and is called frequently
• [C] A function that is not small and is not called frequently
• [D] A function that is not small and is called frequently

A friend function

• [A] is declared as a friend & defined elsewhere in the program
• [B] is always an inline function
• [C] created objects without initialization
• [D] May be a static member function of the class