Which of the following functions is already declared in the "header file"?OptionsUser-defined functionBuilt-in functionBoth User-defined and Built-inNone of these

Which statement invokes the function? Function definition Function call Function header All

Which of the following extension is used for user-defined header file in c++? Options hg cpp h hf

What does built-in function type do in context of classes?OptionsDetermines the object name of any valueDetermines the class name of any valueDetermines class description of any valueDetermines the file name of any value

FunctionsWhat does the error, invalid re-declaration of a function mean?OptionsThere is no declaration in scopeThere are multiple declarationsFunction is invalidNone of the above

What are types of functions in C language?Question 7Answera.None of theseb.User defined functionc.Both library and user defined functiond.Library function