C++ Programming 1000+ MCQ with answer for NEET

1. One of the major disadvantage with late binding is
A. the source code should be made available at compile time
B. the program runs slower
C. dynamic variables can not be used in the program
D. static variables can not be used
Answer : B

2. A destructor can have arguments like constructor.
A. True
B. False
C.
D.
Answer : B

3. this' is an implicit pointer.
A. True
B. False
C.
D.
Answer : A

4. this' pointer has to be used while accessing data members in a member function.
A. True
B. False
C.
D.
Answer : A

5. When a language has the capacity to produce new data type, it is said to be
A. Reprehensible
B. Encapsulated
C. Overload
D. Extensible
Answer : D

6. A destructor can have a return type.
A. True
B. False
C.
D.
Answer : B

7. By default, C++ uses the following method of passing arguments
A. Call-by-Reference
B. Call-by-Value
C. Call-by-Pointer
D. None of the above
Answer : B

8. Sharing of common information are achieved by the concept of
A. Virtual copying
B. Inheritance
C. Encapsulation
D. None of these
Answer : B

9. Member function cannot be called from within a constructor.
A. True
B. False
C.
D.
Answer : A

10. The break statement causes an exit
A. Only from the innermost loop
B. Only from the innermost switch
C. From all loops and switch
D. Only from the innermost loops or switch
Answer : A

11. In C++, the stream base class is
A. iostream
B. iofstream
C. ios
D. stdio
Answer : C

12. "[]" Operator is a unary operator.
A. True
B. False
C.
D.
Answer : A

13. You can read input that consists of multiple lines of text using
A. The normal cout<< combination
B. The cin.get() function with one argument
C. The cin.get() function with two argument
D. The cin.get() function with three argument
Answer : C

14. cc ___________ option is used only to create object file
A. -a
B. -o
C. -c
D. none of these
Answer : B

15. Which of the following are good reasons to use an object oriented language?
A. You can define your data types
B. Program statements are simpler than in procedural languages.
C. An OO program can be taught to correct its own errors.
D. It's easier to conceptualize an OO program.
Answer : A

16. Constructor returns void type value.
A. True
B. False
C.
D.
Answer : B

17. Class members are _______________ by default
A. Private
B. protected
C. public
D. None of the above are correct
Answer : A

18. The scope resolution operator is -
A. ::
B. ;
C. <<
D. ->
Answer : A

19. A class that contains at least one pure virtual function is called as
A. pure class
B. abstract class
C. base class
D. derived class
Answer : B

20. Inline functions_____________ call overload.
A. Increase
B. Reduce
C. None of the above are correct
D.
Answer : B

21. One of the important features of an abstract class is
A. it need not have any object
B. it should be used only as a derived class
C. it need not have any members
D. none of the above
Answer : A

22. Data objects can be initialized when allocating memory using 'new'.
A. True
B. False
C.
D.
Answer : A

23. Scope resolution operator has the highest precedence.
A. True
B. False
C.
D.
Answer : A

24. In C++, the exception handler is invoked with a-
A. try block
B. throw exception
C. catch function
D. abort()
Answer : B

25. Static data member occurs in only class scope.
A. True
B. False
C.
D.
Answer : B

26. The member of a structure can be accessed through a pointer by
A. ->
B. dot operator
C. ::
D. >>
Answer : A

27. Pick out the most appropriate statement
A. All variables must be declared before they are used
B. Variables in C++ need not be declared and the type can be assigned dynamically
C. Variables in C++ can be declared at the end of the program (before the main function terminates)
D. Variables can not be used explicitly in C++
Answer : A

28. Operator overloading is
A. Making C++ operators work with objects
B. Making C++ operators more then they can handle
C. Giving new meaning to existing c++ operators
D. Making new C++ operators
Answer : C

29. A function that is called automatically when an object is destroyed is known as
A. instantiation
B. function prototype
C. constructor
D. destructor
Answer : D

30. What is the output of the following program segment - for(i = 1, j = 0; i < 10; i++) j += i; cout <<i<<"
";
A. 10
B. 20
C. 55
D. there is an error in the program
Answer : A

31. The getch() library function
A. Returns a character when any key is pressed
B. Returns a character when ENTER is pressed
C. Display a character on the screen when a key is pressed
D. Does not display a character on the screen
Answer : A

32. Which of the following is true about const member functions?
A. const members can be invoked on both const as well as nonconst objects
B. const members can be invoked only on const objects and not on nonconst objects
C. nonconst members can be invoked on const objects as well as nonconst objects
D. none of the above
Answer : B

33. The ?: can be used to replace
A. if-else statement
B. wild cards
C. no meaning in C++
D. returns the value
Answer : A

34. Objects get destroyed in the reverse order as they are created.
A. True
B. False
C.
D.
Answer : A

35. An object is an allocated space in memory.
A. True
B. False
C.
D.
Answer : A

36. The declaration int **var1; shows that
A. var1 can not be accessed
B. var1 is a pointer to a pointer of type int
C. var1 is a protected data type of integer
D. this type declaration shows an error
Answer : B

37. The binding that binds a function call at run time is called
A. early binding
B. run time binding
C. late binding
D. linking
Answer : C

38. Pick out the most appropriate statement from the following
A. references are pointers
B. array of references can be created
C. you can not reference a reference variable
D. all of the above
Answer : C

39. Dynamic memory can be allocated by the following declaration
A. new
B. volatile
C. static
D. ==
Answer : A

40. Friend function have access to the
A. private and protected members
B. public members only
C. private members only
D. None of the above are correct
Answer : B

41. _______ argument(s) are passed in case of unary overloaded operators.
A. Two
B. One
C. No
D. None of the above
Answer : B

42. Which of the following relationship is known as inheritancerelationship?
A. ‘has-a’ relationship
B. ‘is-a’ relationship
C. association relationship
D. none of the above
Answer : A

43. ios containes a pointer to streambuf.
A. True
B. False
C.
D.
Answer : A

44. Protected data members can be accessed
A. Only from the base class itself
B. Both form the base class and from its derived classes
C. From the class which is friend of the base class
D. None of the above are correct
Answer : B

45. Overloaded functions
A. Are a group of functions with the same name
B. All have the same number and types of arguments
C. Make life simpler for programmer
D. May fail unexpectedly due to stress
Answer : A

46. What is the value of Friday in the following - enum days { Monday, Tuesday, Wednesday = -1, Thursday, Friday, Saturday = 6, Sunday}
A. 1
B. 5
C. 0
D. -3
Answer : A

47. The library function exit() causes an exit from
A. The loop in which it occurs
B. The block in which it occurs
C. The function in which it occurs
D. The program in which it occurs
Answer : D

48. In C++, the keyword auto can be used for
A. Automatic assignment of data to object during instantiation
B. Automatic call of a function
C. To declare a local variable
D. It is not a keyword in C++
Answer : C

49. Reference to an object behaves like a constant pointer.
A. True
B. False
C.
D.
Answer : B

50. The value of 'this' pointer can be changed.
A. True
B. False
C.
D.
Answer : B