Question 1

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 2

Consider the following Python function:

def process_data(*args, **kwargs):

if "mode" in kwargs:

mode = kwargs['mode']

if mode == 'sum':

result = sum(args)

elif mode == 'product':

result = 1

for arg in args:

result *= arg

else:

result = None

else:

result = None

return result

Which of the following function calls will correctly compute the product of the given numbers?

Options :

A : process_data(mode='product', args=[2, 4, 6])

B : process_data(2, 4, 6, 'product')

C : process_data(mode='product', 2, 4, 6)

D : process_data(2, 4, 6, mode='product')

Answer: D

Question 3

Complete the following sentence.

PEP is...

Options :

A : one of the parts of the Style Guide for Python Code documentation, which provides information about code layout, naming conventions, and programming recommendations. It-s a synonymous term for PEP 8.

B : one of the parts of the Style Guide for Python Code documentation, which provides information about coding conventions, best practices, and stylistic guidelines. It-s a synonymous term for PEP 8.

C : one of the parts of the Python Developer-s Guide documentation, which contains the list of all Python Enhancement Proposal known as PEPs.

D : one of the parts of the Python Developer-s Guide documentation, which contains the list of Python Enhancement Proposal that are currently under consideration, known as PEPs.

Answer: C

Question 4

What is the result of the following code?

import shelve

sh = shelve.open('company', 'w')

sh['name'] = 'Apple'

sh['country'] = 'USA'

sh['currency'] = ['USD', '$']

sh.close()

sh_restored = shelve.open('company')

print(sh_restored['currency'])

Options :

A : This code will output ('USD', '$') to the console.

B : This code will output ['USD', '$'] to the console.

C : This code will raise the KeyValue exception.

D : This code will output 'USD' to the console.

Answer: B

Question 5

Suppose you have the following class:

1. class ProductionLine:

2. def __init__(self, capacity):

3. self.capacity = capacity

You've created two instances of this class:

1. prod1 = ProductionLine(100)

2. prod2 = ProductionLine(200)

What is the result of the following operation?

Options :

A : prod1 + prod2

B : 300

C : 200

D : This code will raise the TypeError exception. Unsupported operation.

E : 100

Answer: D