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Welcome to the Member Functions MCQs Page

Dive deep into the fascinating world of Member Functions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Member Functions, a crucial aspect of Object Oriented Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Member Functions, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Object Oriented Programming.

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Check out the MCQs below to embark on an enriching journey through Member Functions. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Member Functions. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Member Functions MCQs | Page 2 of 12

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Q11.
Which among the following is true for virtual functions?

a.

Prototype must be different in base and derived class

b.

Prototype must be same in base class and derived class

c.

Prototype must be given only in base class

d.

Prototype must have different signature in base and derived class

Discuss
Answer: (b).Prototype must be same in base class and derived class
Q12.
The virtual functions must be declared and defined in _____________ class and overridden in ___________ class.

a.

Base, base

b.

Derived, derived

c.

Derived, base

d.

Base, derived

Discuss
Answer: (d).Base, derived
Q13.
It is __________ to redefine the virtual function in derived class?

a.

Necessary

b.

Not necessary

c.

Not acceptable

d.

Good practice

Discuss
Answer: (b).Not necessary
Q14.
Which among the following best defines the abstract methods?

a.

Functions declared and defined in base class

b.

Functions only declared in base class

c.

Function which may or may not be defined in base class

d.

Function which must be declared in derived class

Discuss
Answer: (b).Functions only declared in base class
Q15.
Which among the following is true ?

a.

The abstract functions must be only declared in derived classes

b.

The abstract functions must not be defined in derived classes

c.

The abstract functions must be defined in base and derived class

d.

The abstract functions must be defined either in base or derived class

Discuss
Answer: (a).The abstract functions must be only declared in derived classes
Q16.
How are abstract functions different from the abstract functions?

a.

Abstract must not be defined in base class whereas virtual function can be defined

b.

Either of those must be defined in base class

c.

Different according to definition

d.

Abstract functions are faster

Discuss
Answer: (a).Abstract must not be defined in base class whereas virtual function can be defined
Q17.
It is _________________________ to define the abstract functions.

a.

Mandatory for all the classes in program

b.

Necessary for all the base classes

c.

Necessary for all the derived classes

d.

Not mandatory for all the derived classes

Discuss
Answer: (c).Necessary for all the derived classes
Q18.
The abstract function definitions in derived classes is enforced at _________

a.

Runtime

b.

Compile time

c.

Writing code time

d.

Interpreting time

Discuss
Answer: (b).Compile time
Q19.
What is this feature of enforcing definitions of abstract function at compile time called?

a.

Static polymorphism

b.

Polymorphism

c.

Dynamic polymorphism

d.

Static or dynamic according to need

Discuss
Answer: (c).Dynamic polymorphism
Q20.
What is the syntax for using abstract method?

a.

<access-modifier>abstract<return-type>method_name (parameter)

b.

abs<return-type>method name (parameter)

c.

<access-modifier>abstract return-type method name (parameter)

d.

<access-modifier>abstract <returning> method name (parameter)

Discuss
Answer: (a).<access-modifier>abstract<return-type>method_name (parameter)
Page 2 of 12

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