Question 1

Which combination of methods is used to create the main window, set its title, and start the event loop in a Tkinter application?

Options :

A : root.mainloop()

root.title("My App")

root = Tk()

B : mainloop()

title("My App")

Tk()

C : Tk()

title("My App")

mainloop()

D : root = Tk()

root.title("My App")

root.mainloop()

Answer: D

Question 2

What is metaprogramming?

Options :

A :

It-s one of the fundamental concepts in object-oriented programming paradigm. It describes a class that references one or more objects of other classes in instance variables. This allows you to model a has-a relation between objects.

B : It-s a programming technique in which computer programs have the ability to treat other programs as their data. It means that a program can be designed to read, generate, analyze or transform other programs, and even modify itself while running.

C : It-s one of the core concepts of object-oriented programming paradigm. It is a mechanism where you can derive a class from another class for a hierarchy of classes that share a set of attributes and methods.

D : It-s the concept of providing a single interface to objects of different types.

Answer: B

Question 3

Consider the following Python code snippet:

1. class Meta(type):

2. def __new__(cls, name, bases, attrs):

3. new_class = super().__new__(cls, name, bases, attrs)

4. new_class.instances = 0

5. original_init = new_class.__init__

6.

7. def new_init(self, *args, **kwargs):

8. new_class.instances += 1

9. original_init(self, *args, **kwargs)

10.

11. new_class.__init__ = new_init

12. return new_class

13.

14.

15. class MyClass(metaclass=Meta):

16. pass

17.

18.

19. a = MyClass()

20. b = MyClass()

21. c = MyClass()

What will be the output of print(MyClass.instances)?

Options :

A : 0

B : An AttributeError will be raised.

C : 1

D : 3

Answer: D

Question 4

Select all true statements about differences between static and class method. (select 2)

Options :

A : A class method is decorated by @clsmethod.

B : A class method requires cls as the first parameter and a static method doesn't.

C : A class method can be used as an alternative way to create objects, and a static method is only a utility method.

D : A static method has the ability to access the state or methods of the class, and a class method doesn't.

Answer: B,C

Question 5

The json.loads() method... (select 2)

Options :

A : takes Python data as its argument.

B : takes a JSON string as its argument.

C : returns a string.

D : returns a JSON object.

Answer: B,D

Confidently Practice Online with Free PCPP-32-101 Exam Cram

Buying Options: