1000+ C++ Programming MCQ for SSC CGL [Solved]

1. The && and || operators
A. Compare two numeric values
B. Combine two numeric values
C. Compare two Boolean values
D. Combine two Boolean values
Answer : C

2. 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

3. 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

4. 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

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

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

7. The members of a class by default are private.
A. True
B. False
C.
D.
Answer : A

8. Inline function specifier reduces the overheads associated with a normal function call.
A. True
B. False
C.
D.
Answer : A

9. 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

10. A base class is inherited by
A. derived class
B. inline function
C. constructor
D. none of the above
Answer : A

11. :: is known as
A. scope resolution operator
B. global operator
C. Both (a) & (b)
D. None of these
Answer : A

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

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

14. Organizing data with methods that operate on the data and creating a new data type is called encapsulation.
A. True
B. False
C.
D.
Answer : A

15. 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

16. If a friend function is declared inside a class it can access all data members of the class.
A. True
B. False
C.
D.
Answer : A

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

18. main() returns a value of type
A. real
B. char
C. int
D. null
Answer : C

19. 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

20. In case of nested class, enclosing class can directly access the private data member of nested class.
A. True
B. False
C.
D.
Answer : A

21. 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

22. 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

23. A constructor cannot be explicitly called.
A. True
B. False
C.
D.
Answer : A

24. A copy constructor is used to copy an object member wise to another object of the same class.
A. True
B. False
C.
D.
Answer : A

25. If class A is friend of class B and if class B is friend of class C, which of the following is true?
A. Class C is friend of class A
B. Class A is friend of class C
C. Class A and Class C do not have any friend relationship
D. None of the above
Answer : B

26. Static data member can be declared as const too.
A. True
B. False
C.
D.
Answer : A

27. The following syntax is valid. void inline gram_ panchayat :: show_gram_ panchayat_info().
A. True
B. False
C.
D.
Answer : B

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

29. 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

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

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

32. The characteristic that data can be manipulated only through member functions that are part of the class is called
A. Encapsulation
B. Data dependency
C. Inheritance
D. Instantiation
Answer : A

33. A function that is called automatically when an object is created is known as
A. instantiation
B. function prototype
C. constructor
D. structure
Answer : C

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

35. A normal C++ operator that acts in a special way on newly defined data types is said to be
A. Glorified
B. Encapsulated
C. Classified
D. Overloaded
Answer : D

36. Protected members cannot be inherited.
A. True
B. False
C.
D.
Answer : B

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

38. Which of the following is not a component of file system
A. Access method
B. Auxiliary storage management
C. Free integrity mechanism
D. None of the above
Answer : C

39. A member function can always access the data
A. In the object of which it is a member
B. In the class of which it is a member
C. In the object of the class of which it is a member
D. In the public part of its class
Answer : B

40. The template function declaration specifies
A. template class
B. a generic class
C. exception
D. identifier
Answer : B

41. A variable defined within a block is visible
A. From the point of definition onwards in the program
B. From the point of definition onwards in the function
C. From the point of definition onwards in the block
D. Throughout the function
Answer : C

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

43. Classes are useful because they
A. Are removed from memory when not in use
B. Permit data to be hidden from other classes
C. Bring together all aspects of an entity in one place
D. Can closely model objects in the real world
Answer : B

44. Class is similar to a variable.
A. True
B. False
C.
D.
Answer : B

45. 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

46. The new operator always returns a void pointer.
A. True
B. False
C.
D.
Answer : A

47. 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

48. The exception is processed using
A. unexpected()
B. perform()
C. catch()
D. try()
Answer : C

49. When accessing a structure member, the identifier to the left of the dot operator is the name of
A. Structure member
B. Structure tag
C. Structure variable
D. The keyword struct.
Answer : C

50. In C++, identifiers have to be declared at the beginning of the blocks.
A. True
B. False
C.
D.
Answer : A