C++ Online Exam-Quiz2 1. Which of the following concepts is used to implement late binding? Operator function Static function Virtual function Const function 2. Which of the following are available only in the class hierarchy chain? Member functions Public data members Private data members Protected data members 3. Which of the following is correct about the statements given below? All operators can be overloaded in C++. We can change the basic meaning of an operator in C++. Only II is true. Only I is true. Both I and II are false. Both I and II are true. 4. How “Late binding” is implemented in C++? Using Virtual tables Using polymorphic tables Using Indexed virtual tables Using C++ tables 5. Which of the following is the correct way of declaring a function as constant? int ShowData(void) const { /* statements */ } const int ShowData(void) { /* statements */ } int const ShowData(void) { /* statements */ } Both A and B 6. Which of the following is a mechanism of static polymorphism? Function overloading Templates All of the above Operator overloading 7. Which one of the following options is correct about the statement given below? The compiler checks the type of reference in the object and not the type of object. Polymorphism Encapsulation Inheritance Abstraction 8. Which of the following concepts means waiting until runtime to determine which function to call? Dynamic casting Dynamic binding Data hiding Dynamic loading 9. Which of the following functions are performed by a constructor? Construct a new object Initialize objects Construct a new class Construct a new function 10. Which of the following operator is overloaded for object cout? << <<< <>< >> 11. Which of the following is not a type of inheritance? Multiple Multilevel Hierarchical Distributive 12. Which of the following ways are legal to access a class data member using this pointer? this.x *this.x *this-x this->x 13. Which of the following problem causes an exception? Missing semicolon in statement in main(). A syntax error. A run-time error. A problem in calling function. 14. Which of the following is the correct class of the object cout? ifstream istream ostream iostream 15. Which of the following is correct about class and structure? class data members are public by default while that of structure are private. Pointer to structure or classes cannot be declared. class can have member functions while structure cannot. class data members are private by default while that of structure are public by default. 16. Which of the following statement is correct? C++ allows static member function be of type const. C++ allows dynamic type checking. C++ allows static type checking. Both A and B. 17. Which of the following factors supports the statement that reusability is a desirable feature of a language? It lowers the maintenance cost. Both A and C. It reduces the compilation time. It decreases the testing time. 18. What happens if the base and derived class contains definition of a function with same prototype? Only base class function will get called irrespective of object. Base class object will call base class function and derived class object will call derived class function. Compiler reports an error on compilation. Only derived class function will get called irrespective of object. 19. Which of the following concepts means wrapping up of data and functions together? Inheritance Abstraction Polymorphism Encapsulation 20. Which of the following cannot be used with the keyword virtual? member functions class constructor destructor Loading … Question 1 of 20
