Object Oriented Programming MCQs

Page No. 42

Why do we use user defined classes?


aTo design a user intended code

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bTo model real world objects

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cTo design the interfaces

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d To model the functions

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Which feature is exhibited by the inbuilt classes?


aCode reusability

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bCode efficiency

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c Code readability

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dCode reusability, efficiency and readability

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What is the use of inbuilt classes?


a Provide predefined data

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bProvide predefined functions

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cProvide predefined data and functions

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dProvide predeclared data to be overridden

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In which case the classes can be used to make the more efficient program?


aTo define a function that is called frequently in a program

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bTo structure data that is most similar

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cTo group the most similar data and operations

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dTo define a blueprint that shows memory location of data

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Class is _____________ of an object.


aBasic function definition

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bDetailed description with values

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cBlueprint

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dSet of constant values

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View Answer Blueprint

Which among the following is a feature of class?


aObject orientation

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b Procedure orientation

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cBoth object and procedure orientation

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dNeither object nor procedure orientation

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View Answer Object orientation

Which among the following is an advantage of using classes over structures of C?


aFunctions are restricted

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bFunctions can’t be defined

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cFunctions can also be encapsulated

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d Functions can have more security

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Which class represents the most abstracted information?


a Nested

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bDerived

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cEnclosed

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d Base

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View Answer Base

If a database have to be maintained using OOP, to store the details of each employee in a company, which would be the best choice among the following?


aDefine a generic type to store string and number details

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bDefine a structure to store details of each employee

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cDefine separate variable for each detail

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dDefine a generic type to store string and number details

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If a class have two data members and two functions to add those two numbers and to subtract them, which among the following is most efficient if the programmer wants to implement multiplication too?


aDefine a public function which multiplies two numbers

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bDefine a public function that returns values of two data members

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c Define a private function which multiplies two numbers

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dDefine a private function that returns values of two data members

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