Question 1

Options :

A :

B :

C :

D :

Answer: B

Question 2

The reason for implementing abstract classes is that...

Options :

A : abstract classes set requirements regarding methods that must be implemented by their subclasses.

B : abstract classes increase the security of your code.

C : abstract classes help you keep you code clean, short and self-documenting.

D : abstract classes decrease the code execution time.

Answer: A

Question 3

Suppose you have the following XML file called books.xml:

Gambardella, Matthew

XML Developer's Guide

Computer

44.95

2000-10-01

An in-depth look at creating applications

with XML.

Ralls, Kim

Midnight Rain

Fantasy

5.95

2000-12-16

A former architect battles corporate zombies,

an evil sorceress, and her own childhood to become queen

of the world.

How can you parse this document using xml.etree.ElementTree module?

Options :

A : import xml.etree.ElementTree as ET

tree = ET.todict('books.xml')

B : import xml.etree.ElementTree as ET

tree = ET.dump('books.xml')

C : import xml.etree.ElementTree as ET

tree = ET.tostring('books.xml')

D : import xml.etree.ElementTree as ET

tree = ET.parse('books.xml')

Answer: D

Question 4

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 5

Complete the text below.

When a request requires additional parameters in the URI (Uniform Resource Identifier), they are typically appended to the URI as key-value pairs. Multiple parameters are separated from each other using the _____ symbol.

Options :

A : #

B : &

C : space

D : +

Answer: B