G11 Unit 2 Exercises

The composition of attributes and methods is defined by

• Inheritance

• Method

• Class

• Object

Which statement is true about the inheritance concept in object-oriented programming?

• A child class can inherit attributes and methods from multiple parent classes.

• Child classes cannot have additional attributes or methods beyond those of the parent

• A parent class can inherit from its child class.

• Only methods can be inherited from the parent class.

Consider the following code and identify the parent class.

class A:

pass

class B(A):

pass

class C(A):

pass

• A

• B

• C

• None

In Python, what is an example of polymorphism?

• Creating classes that inherit from multiple parent classes.

• Creating multiple classes with the same name.

• Using the len() method on different data types.

• Writing multiple functions with different names that perform the same action.

Predict the output of the following program.

class Parent:

def speak(self):

return "Parent Speaking"

class Child(Parent):

def speak(self):

return "Child Speaking"

obj = Child()

print(obj.speak())

• Child Speaking

• An error will be raised

• None of the above

• Parent Speaking

What will happen if a method is not found in the Child class but is present in the parent class?

• The program will throw an error.

• The method from the parent class will be executed.

• The program will terminate.

• The method from the child class will be executed.

Which feature of OOP allows the reusability of code?

• Inheritance

• Class

• Method

• Object

The class that inherits the properties and methods of another class is

• Base class

• Parent class

• Child class

• Subset class

If ParentClass is a parent class, then which of the following statements is the correct definition for ChildClass inheriting ParentClass?

• ParentClass(ChildClass): class_suite

• class ParentClass(ChildClass): class_suite

• class ChildClass(ParentClass): class_suite

• Class Child_class(Parent_class): class_suite

A class that takes more than one form to perform different tasks is said to be

• Inheritance

• Method

• Multiple Class

• Polymorphism