Test -1

1. Who invented OOPs?

A) Andrea Ferro
B) Alan Kay
C) Dennis Ritchie
D) bjarne stroustrup
E) Adele Goldberg

2. Wrapping data and its related functionality into a single entity is known as

A) NONE OF THESE
B) Abstarction
C) Polymorphism
D) Encapsulation
E) Inheritance

3. What does polymorphism in OOPs mean?

A) Concept of keeping things in differnt modules/files
B) Concept of hiding data
C) Concept of wrapping things into a single unit
D) Concept of allowing overiding of functions
E) A& B

4. Which concept allows you to reuse the written code?

A) POLYMORPHISM
B) Inheritance
C) Absraction
D) Encapsulation
E) CLASS

5. How access specifiers in Class helps in Abstraction?

A) They help in keeping things together
B) They allows us to show only required things to outer world
C) They does not helps in any way
D) Abstraction concept is not used in classes
E) ENCAPSULATION

6. C++ is----------

A) Only class oriented
B) Procedural programming language
C) both procedural and object oriented programming language
D) structured orienred programming language
E) function oriented programming language

7. Which is not a feature of OOP in general definitions?

A) Modularity
B) Duplicate/Redundant data
C) Duplicate data
D) Code reusability
E) Efficient Code

8. When OOP concept did first came into picture?

A) 1970’s
B) 1990's
C) 1880's
D) 1960’s
E) 1980's

9. Which header file is required in C++ to use OOP?

A) stdio.h
B) A&B
C) OOP can be used without using any header file
D) stdlib.h
E) iostream.h

10. Why Java is Partially OOP language?

A) it does not allows objects
B) It allows code to be written outside classes
C) It does not support pointers
D) It supports usual declaration of primitive data types
E) It doesn’t support all types of inheritance

11. The feature by which one object can interact with another object is

A) Data transfer
B) Message reading
C) Data Binding
D) Binding of data
E) Message Passing

12. How many types of access specifiers are provided in OOP (C++)?

A) 5
B) 4
C) 3
D) 1
E) 2

13. In which access should a constructor be defined, so that object of the class can be created in any function?

A) Private
B) Public
C) Protected
D) Public/private
E) none of these

14. The copy constructors can be used to ________

A) copy an object for storing the same value
B) Copy an object so that it can be passed to a function
C) Copy an object for type casting
D) Copy an object so that it can be passed to a class
E) Copy an object so that it can be passed to a function

15. . Comments in C++ are represented by ________

A) * *
B) //
C) \\
D) '' ''
E) //

16. The scope resolution operator (:;) is used to access

A) Global variables
B) none of these
C) Local variables
D) Global variables
E) both global @ Local variables

17. You can use C++ as a procedural, as well as an object-oriented, language

A) neither true
B) true
C) nor false
D) false
E) True

18. cin object is which purpose used

A) Input
B) both input& output
C) output
D) none of these
E) Input

19. iostream is a headerfile section

A) nor false
B) true
C) neither true
D) false
E) true

20. Identify the feature which can be implemented using encapsulation.

A) encapsulation
B) Absraction
C) Abstraction
D) Inheritance
E) Polymorphism

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