ExamAdept

Consider the following code:

class Animal:
    def speak(self):
        print("Animal speaks")

class Dog(Animal):
    def speak(self):
        print("Dog barks")

def main():
    my_pet = Dog()
    my_pet.speak()

What will be the output of the main() function?

A:

Animal speaks

B:

Dog barks

C:

The code will result in an error

D:

Animal barks

Answer: B

The speak() method is overridden in the Dog class, so calling speak() on a Dog instance will print "Dog barks".

📖

How does Python handle diamond inheritance conflicts?

A:

By automatically resolving conflicts using the first defined method

B:

By raising an error and requiring explicit resolution using super()

C:

By using the C3 linearization algorithm to determine method resolution order

D:

Diamond inheritance conflicts are not allowed in Python

Answer: C

Python uses the C3 linearization algorithm to determine the method resolution order in case of diamond inheritance conflicts.

📖

In Python, what is the purpose of the super() function?

A:

To define class attributes

B:

To create a new instance of the class

C:

To access superclass methods and attributes

D:

To access subclass methods and attributes

Answer: C

The super() function is used to access methods and attributes of the superclass in Python.

📖

What is the purpose of the __slots__ attribute in Python classes?

A:

To define class attributes

B:

To create a new instance of the class

C:

To restrict the set of attributes that can be assigned to instances

D:

To access superclass attributes directly

Answer: C

The __slots__ attribute is used to restrict the set of attributes that can be assigned to instances, providing memory optimization.

📖

What is the purpose of the __bases__ attribute in Python classes?

A:

To define class attributes

B:

To create a new instance of the class

C:

To access the base classes of a class

D:

To access superclass attributes directly

Answer: C

The __bases__ attribute is used to access the base classes of a class in Python.

📖

Questions for: Inheritance