Question 1

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 2

Something is missing from the following class declaration. What is missing?

class Company:

def __init__():

self.country = 'USA'

Options :

A :

You should directly inherit from the built-in object class. For example:

class Company(object):

def __init__():

self.country = 'USA'

B : The __init__() method (constructor) should be named init().

C : The __init__() constructor lacks the obligatory parameter self.

D : You should use the snake_case convention for the class name.

Answer: C

Question 3

Assume that the following piece of code has been successfully executed:

class Vehicle:

fleet = 0

def __init__(self, category=None):

self.category = category if category else 'vehicle'

Vehicle.fleet += 1

def __str__(self):

return self.category

class LandVehicle(Vehicle):

def __str__(self):

return super().__str__() + ': land'

class AirVehicle(Vehicle):

def __str__(self):

return super().__str__() + ': air'

What is the expected output of the following piece of code?

veh1 = Vehicle()

veh2 = LandVehicle()

veh3 = AirVehicle()

print(veh1)

print(veh2)

print(veh3)

Options :

A :

vehicle

B :

vehicle

: land

: air

C :

vehicle

vehicle: land

vehicle: air

D : This code will raise the SyntaxError exception.

Answer: C

Question 4

Python knows what to do when the interpreter spots the ** operator between two objects - it looks for the magic method responsible for the called function or operator in order to apply it to the operands (objects). In fact, the following snippet of code:

var1 = 2

var2 = 4

result = var1 ** var2

is translated to:

Options :

A :

var1 = 2

var2 = 4

result = var1.__power__(var2)

B :

var1 = 2

var2 = 4

result = var1._pow_(var2)

C :

var1 = 2

var2 = 4

result = var1.pow(var2)

D :

var1 = 2

var2 = 4

result = var1.__pow__(var2)

Answer: D

Question 5

Why is the requests library important? (select 2)

Options :

A : Provides a clear and concise framework to work with HTTP requests.

B : Abstracts the complicated parts of HTTP protocol.

C : It is the only available option for making HTTP connections in Python.

D : De facto standard for making HTTP requests in Python.

Answer: A,B,D

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