gs gs109 Python OOPs - Python Polymorphism - Quiz No.1
gs gs109 Python Quiz
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Question 1: Which of the following best describes polymorphism?
Ability of a class to derive members of another class as a part of its own definition
Means of bundling instance variables and methods in order to restrict access to certain class members
Focuses on variables and passing of variables to functions
Allows for objects of different types and behaviour to be treated as the same general type
Question 2: What is the biggest reason for the use of polymorphism?
It allows the programmer to think at a more abstract level
There is less program code to write
The program will have a more elegant design and will be easier to maintain and update
Program code takes up less space
Question 3: What is the use of duck typing?
More restriction on the type values that can be passed to a given method
No restriction on the type values that can be passed to a given method
Less restriction on the type values that can be passed to a given method
Makes the program code smaller
Question 4: What will be the output of the following Python code?
class A: def __str__(self): return '1' class B(A): def __init__(self): super().__init__() class C(B): def __init__(self): super().__init__() def main(): obj1 = B() obj2 = A() obj3 = C() print(obj1, obj2,obj3) main()
1 1 1
1 2 3
‘1’ ‘1’ ‘1’
An exception is thrown
Question 10: What will be the output of the following Python code?
class Demo: def check(self): return " Demo's check " def display(self): print(self.check()) class Demo_Derived(Demo): def check(self): return " Derived's check " Demo().display() Demo_Derived().display()
Demo’s check Derived’s check
Demo’s check Demo’s check
Derived’s check Demo’s check
Syntax error
