Question 1

You are developing a Python project and want to follow the PEP 8 guidelines for using comments effectively. Which of the following scenarios demonstrates the correct usage of block comments and inline comments according to PEP 8?

Options :

A : def calculate_sum(a, b):

# This function calculates the sum of two numbers

return a + b

B : # This function calculates the sum of two numbers

def calculate_sum(a, b):

"""

Adding the numbers together.

"""

return a + b

C : # This function calculates the sum of two numbers

def calculate_sum(a, b):

return a + b # Adding the numbers together

D : # calculate_sum function

# This function adds two numbers together and returns the result

def calculate_sum(a, b):

return a + b

E : def calculate_sum(a, b):

"""

This function calculates the sum of two numbers.

Args:

a: The first number.

b: The second number.

Returns:

The sum of the two numbers.

"""

return a + b

Answer: E

Question 2

An IPv4 address is a...

Options :

A : 64-bit number that uniquely identifies a network interface.

B : 16-bit number that uniquely identifies a network interface.

C : 8-bit number that uniquely identifies a network interface.

D : 32-bit number that uniquely identifies a network interface.

Answer: D

Question 3

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 4

Given the following Python code snippet:

1. import math, sys, os

2. from my_module import my_function

3.

4. def calculate_radius(area):

5. return math.sqrt(area / math.pi)

6.

7. print(calculate_radius(50))

According to PEP 8 guidelines, which of the following modifications would improve the code's readability and maintainability?

Options :

A : Replace the parentheses in the print function with square brackets.

B : Move the import statement of my_module to the top of the file.

C : Import each module on a separate line.

D : Remove the whitespace around the / operator in the calculate_radius function.

Answer: C

Question 5

Suppose you have the following Laptop class:

1. class Laptop:

2. def __init__(self, ram=8):

3. self.ram = ram

4.

5. def set(self, ram=4):

6. self.ram += ram

7. return self.ram

What is the expected output of the following code?

laptop = Laptop()

print(laptop.ram)

laptop.set()

print(laptop.ram)

laptop.set(8)

print(laptop.ram)

Options :

A : 4

8

16

B : This code will raise the AttributeError exception.

C : 8

12

16

D : 8

12

20

Answer: D