Object Oriented Programming MCQs

Page No. 51

If one class have derived the base class privately then another class can’t derive the base class publically.


aTrue

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bFalse

✓


cA & B

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d None of the above

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View Answer False

How many classes can be derived from the base class using hierarchical inheritance? a) As many as required


aAs many as required

✓


bOnly 7

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cOnly 3

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dUp to 127

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View Answer As many as required

Which among the following is correct for following code?


aCompile time error

✓


b Runtime error

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cProgram runs and o/p is 0

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dProgram runs and o/p is garbage value

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View Answer Compile time error

Which class uses hierarchical inheritance in following code?


aClass A, B, C

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b Class B, C, D

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cClass A, C, D

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dClass D, A, B

✓


View Answer Class D, A, B

Which access specifiers should be used so that all the derived classes restrict further inheritance of base class members?


aPrivate

✓


bPublic

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cProtected

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d Any inheritance type can be used

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View Answer Private

Base class _______________


aCan be made abstract

✓


bCan’t be made abstract

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cMust be abstract

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dIf made abstract, compile time error

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View Answer Can be made abstract

How many classes must be there to implement hierarchical inheritance?


a Exactly 3

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b At least 3

✓


cAt most 3

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dAt least 1

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View Answer At least 3

Each class can inherit the base class ________________


aIndependently using any inheritance

✓


b Independently with private inheritance only

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cWith same type of inheritance

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dWith each class using different inheritance only

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Do members of base class gets divided among all of its child classes?


aYes, equally

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bYes, depending on type of inheritance

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cNo, it’s doesn’t get divided

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dNo, it may or may not get divided

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Which among the following is best to define hierarchical inheritance?


aMore than one classes being derived from one class

✓


bMore than 2 classes being derived from single base class

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cAt most 2 classes being derived from single base class

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dAt most 1 class derived from another class

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