What is meant by multiple inheritance?

Choose most appropriate statement

• [A] An abstract base class can have pure virtual destructor
• [B] An abstract base class can have only virtual destructor
• [C] An abstract base class can have non virtual destructor
• [D] An abstract base class cannot have destructor

what will the ouput of the following code be? #include using namespace std; class parent { public: int x, y; parent(int a, int b) { x = a; y = b; } parent() { x = y = 0; } void print() { cout << x << " " << y << " "; } }; class child : public parent { public: int a, b; child(int a, int b) { this->a = a; this->b = b; } void print() { cout << x << " " << y << " " << a << " " << b << " "; } }; int main() { parent p(3,4); child c(1,2); p = (parent)c; c.print(); p.print(); return 0; }

• [A] 0 0 1 2 0 0
• [B] 0 0 1 2 3 4
• [C] 3 4 1 2 3 4
• [D] Compiler error

Which design patterns benefit from the multiple inheritance?

• [A] Adapter and observer pattern
• [B] Code pattern
• [C] Glue pattern
• [D] None of the mentioned

Which symbol is used to create multiple inheritance?

• [A] Dot
• [B] Comma
• [C] Dollar
• [D] None of the mentioned

Which of the following is/are false

• [A] Inheritance is deriving new class from existing class
• [B] In an inheritance, all data and function members of base class are derived by derived class
• [C] We can specify which data and function members of base class will be inherited by derived class
• [D] We can add new functions to derived class without recompiling the base class