Free Test Function overloading – C++ Lan...

Q1: What is function overloading in C++?

A. Defining multiple functions with the same name but different parameters B. Defining two functions with the same name and same parameters C. Using virtual functions D. Using inline functions

Q2: Which feature allows functions to have the same name in C++?

A. Function overloading B. Function overriding C. Function hiding D. Function pointers

Q3: Can function overloading be done based on return type only?

A. No, return type alone is not enough B. Yes, return type is sufficient C. Yes, if parameters are same D. Only for inline functions

Q4: What differentiates overloaded functions?

A. Number or type of parameters B. Return type C. Function name D. Access specifier

Q5: Is function overloading possible with default arguments?

A. Yes, but can cause ambiguity B. No, default arguments disable overloading C. Yes, no ambiguity possible D. No, causes errors always

Q6: Which of the following is a valid overloaded function pair?

A. int add(int a, int b) B. int add(float a, float b) C. void add(int a, int b) D. int add(int a, int b)

Q7: What will happen if two overloaded functions differ only by return type?

A. Compilation error B. Program runs successfully C. Only one function is called D. Runtime error

Q8: Can constructors be overloaded?

A. Yes, constructors can be overloaded B. No, constructors cannot be overloaded C. Only default constructors can be overloaded D. Only copy constructors can be overloaded

Q9: Does function overloading increase code readability?

A. Yes, it improves readability and usability B. No, it decreases readability C. No effect on readability D. It depends on function complexity

Q10: How does the compiler differentiate overloaded functions?

A. By checking argument types and count at compile time B. By return type at runtime C. By function body D. By function name only

Q11: Is function overloading supported in C?

A. No, function overloading is a C++ feature B. Yes, fully supported C. Supported only with macros D. Supported with function pointers

Q12: What is ambiguous call in function overloading?

A. When compiler cannot decide which function to call B. When function returns void C. When functions have different names D. When no matching function found

Q13: How can ambiguity in function overloading be resolved?

A. By explicit type casting B. By changing function name C. By using macros D. By making functions inline

Q14: Which operators can be overloaded?

A. Most operators except a few like sizeof and . B. Only arithmetic operators C. Only relational operators D. Operators cannot be overloaded

Q15: What is the purpose of function overloading?

A. To perform different tasks with same function name B. To override functions C. To hide functions D. To create virtual functions

Q16: Can template functions be overloaded?

A. Yes, templates can be overloaded B. No, templates cannot be overloaded C. Only partial templates can be overloaded D. Templates are same as overloads

Q17: Is it possible to overload main() function?

A. No, main() cannot be overloaded B. Yes, main can be overloaded C. Only in C++11 D. Yes, but not recommended

Q18: What happens if no matching overloaded function is found?

A. Compilation error B. Default function called C. Runtime error D. Program terminates silently

Q19: Which keyword is used for function overriding instead of overloading?

A. virtual B. inline C. friend D. static

Q20: Does function overloading affect runtime performance?

A. No significant effect; resolved at compile time B. Slows down program C. Increases executable size drastically D. Causes runtime errors

Quiz for Function overloading