Which of the following C++ features allows a single function name to have multiple definitions differentiated by parameter lists?
Option B is correct. Function Overloading is compile-time polymorphism where two or more functions in the same scope share the same name but differ in parameter count or types.
In C++, which access specifier grants member access to derived classes while keeping members hidden from outside non-member functions?
Option C is correct. Protected members are inaccessible from outside the class hierarchy, but accessible to derived (child) classes.
What is the purpose of the 'this' pointer in C++ class member functions?
Option A is correct. The 'this' pointer is an implicit constant pointer available inside non-static member functions, pointing to the invoking object.
Which operator cannot be overloaded in C++?
Option A is correct. Operators that cannot be overloaded in C++ include :: (scope resolution), . (member access), .* (pointer-to-member), ?: (ternary), and sizeof.
Which of the following accurately describes a C++ Friend Function?
Option B is correct. A friend function is declared with the 'friend' keyword inside a class, granting it special access to private and protected class members.