Python Institute PCPP-32-101 Dumps PDF Free Download

QUESTION: 6

Analyze the following snippet and select the statement that best describes it.

The code is syntactically correct despite the fact that the names of the function parameters do not follow the naming convention
The *arg parameter holds a list of unnamed parameters
The code is missing a placeholder for unnamed parameters.
The code is syntactically incorrect - the function should be defined as def f1 (*args, **kwargs)

Answer(s): B

Explanation:

The provided code snippet defines a function f1 that accepts variable-length arguments using the *args and **kwargs syntax. The *args parameter allows for an arbitrary number of unnamed arguments to be passed to the function as a tuple, while the **kwargs parameter allows for an arbitrary number of named arguments to be passed to the function as a dictionary. Therefore, the correct statement that best describes the code is:
The *args parameter holds a list of unnamed parameters, while the **kwargs parameter holds a dictionary of named parameters.

Reference:

Official Python documentation on Function
definitions: https://docs.python.org/3/tutorial/controlflow.html#defining-functions

The arg parameter holds a list of unnamed parameters. In the given code snippet, the f1 function takes two arguments: *arg and **kwarg. The *arg syntax in the function signature is used to pass a variable number of non-keyword (positional) arguments to the function. Inside the function, arg is a tuple containing the positional arguments passed to the function. The **kwarg syntax in the function signature is used to pass a variable number of keyword arguments to the function. Inside the function, kwarg is a dictionary containing the keyword arguments passed to the function.

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QUESTION: 7

Analyze the following snippet and decide whether the code is correct and/or which method should be distinguished as a class method.

There is only one initializer, so there is no need for a class method.
The getNumberofCrosswords () method should be decorated With @classmethod.
The code is erroneous.
The gexNumberOfcrosswords () and issrived methods should be decorated with @classzoechod.

Answer(s): B

Explanation:

The correct answer is B. The getNumberofCrosswords() method should be decorated with @classmethod. In the given code snippet, the getNumberofCrosswords method is intended to be a class method that returns the value of the numberofcrosswords class variable. However, the method is not decorated with the @classmethod decorator and does not take a cls parameter representing the class itself. To make getNumberofCrosswords a proper class method, it should be decorated with @classmethod and take a cls parameter as its first argument. B. The getNumberofCrosswords() method should be decorated with @classmethod. This is because the getNumberofCrosswords() method is intended to access the class-level variable numberofcrosswords, but it is defined as an instance method, which requires an instance of the class to be created before it can be called. To make it work as a class-level method, you can define it as a class method by adding the @classmethod decorator to the function. Here's an example of how to define getNumberofCrosswords() as a class method:
class Crossword:
numberofcrosswords = 0

def __init__(self, author, title):
self.author = author
self.title = title
Crossword.numberofcrosswords += 1

@classmethod
def getNumberofCrosswords(cls):
return cls.numberofcrosswords
In this example, getNumberofCrosswords() is defined as a class method using the

@classmethod decorator, and the cls parameter is used to access the class-level variable numberofcrosswords.

Reference:

Official Python documentation on Classes: https://docs.python.org/3/tutorial/classes.html

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QUESTION: 8

Analyze the code and choose the best statement that describes it.

___ne___() is not a built-in special method
The code is erroneous
The code is responsible for the support of the negation operator e.g. a = - a.
The code is responsible for the support of the inequality operator i.e. i =

Answer(s): D

Explanation:

The correct answer is D. The code is responsible for the support of the inequality operator i.e. i != j.

In the given code snippet, the __ne__ method is a special method that overrides the behavior of the inequality operator != for instances of the MyClass class.
When the inequality operator is used to compare two instances of MyClass, the __ne__ method is called to determine whether the two instances are unequal.

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QUESTION: 9

Which function or operator should you use to obtain the answer True or False to the question: "Do two variables refer to the same object?"

The = operator
The isinstanceO function
The id () function
The is operator

Answer(s): D

Explanation:

To test whether two variables refer to the same object in memory, you should use the is operator. The is operator returns True if the two variables point to the same object in memory, and False otherwise.

For example:

a = [1, 2, 3]
b = a
c = [1, 2, 3]

print(a is b) # True
print(a is c) # False

In this example, a and b refer to the same list object in memory, so a is b returns True. On the other hand, a and c refer to two separate list objects with the same values, so a is c returns False.

Reference:

Official Python documentation on
Comparisons: https://docs.python.org/3/reference/expressions.html#not-in Official Python documentation on Identity
comparisons: https://docs.python.org/3/reference/expressions.html#is

The is operator is used to test whether two variables refer to the same object in memory. If two variables x and y refer to the same object, the expression x is y will evaluate to True. Otherwise, it will evaluate to False.

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QUESTION: 10

The @property decorator designates a method which is responsible for returning an attribute value
The ©property decorator should be defined before the methods that are responsible for setting and deleting an encapsulated attribute

Answer(s): A

Explanation:

The @property decorator should be defined after the method that is responsible for setting an encapsulated attribute is a false sentence. In fact, the @property decorator should be defined before the method that is used to set the attribute value. The @property decorator and the setter and deleter methods work together to create an encapsulated attribute, which is used to provide control over the attribute's value.

Reference:

Official Python documentation on
Property: https://docs.python.org/3/library/functions.html#property The @property decorator is used to designate a method as a getter for an instance attribute. The method decorated with @property should be defined before any setter or deleter methods for the same attribute.

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Python Institute Certified Professional in Python Programming 1 PCPP-32-101 Dumps in PDF

Free Python Institute PCPP-32-101 Real Questions (page: 7)

QUESTION: 6

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QUESTION: 7

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QUESTION: 8

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QUESTION: 9

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QUESTION: 10

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