CBSE Class 12 Computer Science Object Oriented Concepts MCQs Set A

CBSE Class 12 Computer Science Object Oriented Concepts MCQs Set A with answers available in Pdf for free download. The MCQ Questions for Class 12 Computer Science with answers have been prepared as per the latest 2021 syllabus, NCERT books and examination pattern suggested in Standard 12 by CBSE, NCERT and KVS. Multiple Choice Questions for important part of exams for Grade 12 Computer Science and if practiced properly can help you to get higher marks. Refer to more Chapter wise MCQs for NCERT Class 12 Computer Science and also download more latest study material for all subjects

Question: In Object-oriented methodology, the focus is on which of the following entities ?

  • a) Data
  • b) Functions
  • c) Objects
  • d) All of the above

Answer: Objects


Question: Which of the following best suits to Java ?

  • a) A procedural programming language
  • b) An object oriented programming language
  • c) A Query language
  • d) All of the above

Answer: An object oriented programming language


Question: Which of the following is used to distinguish objects from each other?

  • a) Attributes
  • b) State
  • c) Behavior
  • d) All of the above

Answer: State


Question: Which of the following is used to define common features of similar objects?

  • a) Class
  • b) Object
  • c) Methods
  • d) All of the above

Answer: Class


Question: Which of the following is not a visibility symbol ?

  • a) ~
  • b) *
  • c) #
  • d) -

Answer: *


Question: Which of the following is provided using encapsulation ?

  • a) Data protection
  • b) Data sharing
  • c) Separation of data and methods
  • d) All of these

Answer: Data protection


Question: Which of the following is enabled by data abstraction ?

  • a) Data protection
  • b) Data hiding
  • c) To hide implementation details of method manipulating the data
  • d) All of these

Answer: To hide implementation details of method manipulating the data


Question: With which of the following options polymorphism cannot be achieved ?

  • a) Method overloading
  • b) Operator overloading
  • c) Data hiding
  • d) All of these

Answer: Data hiding


Question: An aggregation model refers to which of the following relationships ?

  • a) 'is-a' relationship
  • b) 'is-like' relationship
  • c) 'a-part-of relationship
  • d) All of these

Answer: 'is-a' relationship


More Questions....................

 

Question: An inheritance model refers to which of the following relationships ?

  • a) 'is-a' relationship
  • b) 'has-a' relationship
  • c) 'a-part-of relationship
  • d) All of these

Answer: 'is-a' relationship


Question: In class diagram, composition is represented using which of the following symbols ?

  • a) Empty diamond symbol
  • b) Filled diamond symbol
  • c) Empty triangle symbol
  • d) All of these

Answer: Filled diamond symbol


Question: Object-oriented programming concepts started originating in the_______

  • a) 1950s
  • b) 1960s
  • c) 1970s
  • d) 1980s

Answer: 1960s


Question: Since mid______object-oriented programming had become the main programming paradigm used in the creation of new software.

  • a) 1950s
  • b) 1960s
  • c) 1970s
  • d) 1980s

Answer: 1980s


Question: Some of the popular programming languages that support______programming are C++, Java, C#, VB.net, ASP.net and PHP.

  • a) Object-oriented
  • b) Structural
  • c) Modular
  • d) Procedural

Answer: Object-oriented


Question: The way of programming can be divided into______categories.

  • a) Four
  • b) Three
  • c) Two
  • d) One

Answer: Two


Question: Java is a_____programming language.

  • a) Object-oriented
  • b) Structural
  • c) Modular
  • d) Procedural

Answer: Object-oriented


Question: The categories are______and object-oriented.

  • a) Objective
  • b) Structure/procedural
  • c) Modular
  • d) Functional

Answer: Structure/procedural


Question: In_______programming, the focus is on writing functions or procedures which operate on data.

  • a) Procedural
  • b) Modular
  • c) Functional
  • d) None of these

Answer: Procedural


Question: In object-oriented_____the focus is on objects which contain data and functionality together.

  • a) Pattern
  • b) Prototype
  • c) Paradigm
  • d) Example

Answer: Paradigm


Question: The power of object-oriented programming language enables the programmer to create modular, reusable and_____code.

  • a) Complete
  • b) Accomplished
  • c) Perfect
  • d) Executable

Answer: Executable


Question: Flexibility is gained by being able to change or replace______without disturbing other parts of code.

  • a) Modules
  • b) Parts
  • c) Functions
  • d) Methods

Answer: Modules


Question: Object-oriented programming uses_____as its fundamental building block.

  • a) Method
  • b) Class
  • c) Object
  • d) Procedure

Answer: Object


Question: A computer language is object-oriented if they support four specific object properties called

  • a) Abstraction
  • b) Encapsulation
  • c) Polymorphism and Inheritance
  • d) All of these

Answer: All of these


Question: C# is a______programming language.

  • a) Object-oriented
  • b) Structural
  • c) Modular
  • d) Procedural

Answer: Object-oriented


Question: In the real world______are the entities of which the world is comprised.

  • a) Methods
  • b) Classes
  • c) Objects
  • d) Procedures

Answer: Objects


Question: Some objects can be______things like person, car or a cup of coffee.

  • a) Abstract
  • b) Concrete
  • c) Real
  • d) Solid

Answer: Concrete


Question: Some objects may be______that do not represent things which can be touched or seen.

  • a) Abstract
  • b) Concrete
  • c) Real
  • d) Solid

Answer: Abstract


Question: All objects have unique______and are distinguishable from each other.

  • a) Personality
  • b) Objects
  • c) Procedures
  • d) Identity

Answer: Identity


Question: In object-oriented terminology characteristics are known as properties or_______

  • a) Features
  • b) Attributes
  • c) Values
  • d) States

Answer: Attributes


Question: To uniquely distinguish one person from other,the______of its characteristics is used.

  • a) Worth
  • b) Cost
  • c) Value
  • d) Property

Answer: Value

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