MCQ | Object Oriented Programming | Part -1

Object Oriented Programming (C++)

Part-1

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1. _______ are the basic run-time entities in object oriented system :

A) objects
B) class
C) data type
D) None of the above

... Answer is A)
objects

2. ______ is user define data type in object oriented programming:

A) object
B) class
C) functions
D) None of these

... Answer is B)
Class

3. _____ function declare inside the function

A) global variables
B) local variables
C) user define variables
D) None of these

... Answer is B)
local variables

4. _____ function declare outside the function

A) global variables
B) local variables
C) user define variables
D) None of these

... Answer is A)
global variables

5. The wrapping up of data and function into single unit is called

A) Inheritance
B) Polymorphism
A) Encapsulation
B) None of these

... Answer is A)
Inheritance

6. The insulation of the data from direct access by program is called

A) data binding
B) data hiding
C) data mining
D) None of these

... Answer is B)
data hiding

7. The process in which the property of one class is acquire by another class is

A) inheritance
B) data abstraction
C) polymorphism
D) encapsulation

... Answer is A)
inheritance

8. In object oriented programming concept of reusability is implemented by

A) data abstraction
B) inheritance
C) functions
D) None of these

... Answer is B)
inheritance

9.The ability to take more than one behaviour in object oriented programming is

A) polymorphism
B) inheritance
C) encapsulation
D) None

... Answer is A)
polymorphism

10.The code is associated with given procedure call at runtime is

A) static binding
B) dynamic binding
C) static reference
D) None of these

... Answer is B)
dynamic binding

11. Which statement is false with respect to object oriented programming

A) software complexity can be easily managed
B) object oriented systems can be easily upgraded from small to large system
C) it is not possible to map objects in the problem domain to those object in program
D) it is possible to have multiple instance of an object

... Answer is C)
it is not possible to map objects in the problem domain to those object in program

12. ___ symbol is used for single line comments

A) //
B) /
C) /* */
D) None

... Answer is A)
//

13. ____ symbol is use for multi line comment.

A) /* */
B) //* *//
C) //
D) None

... Answer is A)
/* */

14. bit-wise left-shift operator is represented as

A) <<
B) <>
C) >>
D) None

... Answer is A)
<<

15. << is called

A) left insert
B) less than
C) insertion or put to operator
D) extraction or get from operator

... Answer is C)
insertion or put to operator

16. bit-wise right-shift operator is represented as

A) <<
B) <>
C) >>
D) None

... Answer is C)
>>

17. >> is called

A) left insert
B) less than
C) extraction or get from operator
D) insertion or put to operator

... Answer is C)
extraction or get from operator

18. ___ is known as cascading of I/O operators

A) multiple use of bit wise right-shift or left-shift operators in single statement
B) single use of bit wise shift operators in a statement
C) multiple use of bit wise right-shift and left-shift operators in single statement
D) None

... Answer is A)
multiple use of bit wise right-shift or left-shift operators in single statement
Hint:
Take multiple input using cin: cin >> var1 >> var2;
For print :cout << var1 << var2;

19. A common structure of any program includes following things

A) include files, class declaration, class functions,main function
B) class declaration, class functions,main function
C) include files, class functions,main function
D) include files, class declaration, class functions,

... Answer is A)
include files, class declaration, class functions,main function

20. question

A) option1
B) option2
C) option3
D) option4

... Answer is B)
answer

21. Choose the extension of file for Turbo,Borland,Zortech,Unix for C++ in sequence

A) .cxx ,.cpp ,.cpp ,.cc
B) .cpp ,.cpp ,.cxx ,.cc
C) .cpp ,.cxx ,.cc ,.cpp
D) .cc ,.cpp ,.cpp ,.cxx

... Answer is B)
.cpp ,.cpp ,.cxx ,.cc

22. The smallest individual units in program is known as:

A) tokens
B) data
C) operands
D) None

... Answer is A)
tokens

23. Tokens are known as

A) keywords
B) identifiers
C) Constants
D) all the above

... Answer is D)
all the above

24. The name of variables,functions,arrays,classes etc in any program is called

A) keywords
B) identifiers
C) constants
D) strings

... Answer is B)
identifiers

25. Keywords are called

A) reserve words
B) reserved identifiers
C) both A and B
D) None

... Answer is C)
both A and B

26. Run time initialization of variable is called

A) static initialization
B) dynamic initialization
C) normal initialization
D) None

... Answer is B)
dynamic initialization

27. If we provide alias for a previously defined variable is called

A) direct variable
B) address variable
C) reference variable
D) None

... Answer is C)
reference variable

28. When we provide several meaning of operator depend on their argument is called

A) operator overloading
B) oerator referencing
C) operator overriding
D) operator addressing

... Answer is A)
operator overloading

29. A constructor is called whenever

A) an object is declared
B) an object is used
C) a class is declared
D) a class is used

... Answer is A)
an object is declared

30. A destructor takes

A) one arguments
B) two arguments
C) three arguments
D) zero arguments

... Answer is D)
zero arguments

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