Python Institute PCPP-32-101 Exam Questions

Question 6 of 47

Analyze the following snippet and select the statement that best describes it.
Exam PCPP-32-101: Question 6 - Image 1

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):

Correct Answer: A

The code snippet defines a function f1 that accepts any number of positional and keyword arguments. The *arg parameter collects all positional arguments into a tuple named arg, and the **args parameter collects all keyword arguments into a dictionary named args. The naming of these parameters does not have to follow specific conventions like args and kwargs; hence, the code is syntactically correct despite non-standard naming.

Question 7 of 47

Analyze the following snippet and decide whether the code is correct and/or which method should be distinguished as a class method.
Exam PCPP-32-101: Question 7 - Image 1

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 getNumberOfCrosswords() and isSolved methods should be decorated with @classmethod

Correct Answer: B, C

The code is erroneous. The isElementCorrect method is incorrectly decorated as a @staticmethod while trying to access self, which is an instance variable. Static methods do not have access to self. Furthermore, the getNumberOfCrosswords method should be decorated with @classmethod to properly access class variables.

Question 8 of 47

Analyze the code and choose the best statement that describes it.
Exam PCPP-32-101: Question 8 - Image 1

__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. !=

Correct Answer: D

Question 9 of 47

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 isinstance() function

The id() function

The is function

Correct Answer: D

Question 10 of 47

Which sentence about the @property decorator is false?

The @property decorator should be defined after the method that is responsible for setting an encapsulated attribute.

The @property decorator designates a method which is responsible for returning an attribute value.

The @property decorator marks the method whose name will be used as the name of the instance attribute.

The @property decorator should be defined before the methods that are responsible for setting and deleting an encapsulated attribute.

Correct Answer: A

The @property decorator should be defined before the methods that are responsible for setting and deleting an encapsulated attribute, not after. This is because the @property decorator creates a getter method, and the corresponding @property_name.setter and @property_name.deleter decorators rely on this getter method to function correctly. Therefore, it is crucial for the @property-decorated method to be declared first.