Prepare PCPP-32-101 Question Answers Free Update With 100% Exam Passing Guarantee [2023]
Dumps Real Python Institute PCPP-32-101 Exam Questions [Updated 2023]
Python is a widely-used high-level programming language that is versatile, efficient, and easy to learn. Python is used in a variety of applications, from web development and data analysis to machine learning and artificial intelligence. Those who are proficient in Python can take their skills to the next level by becoming certified through the Python Institute's PCPP-32-101 (PCPP1) Certification Exam.
The Python Institute PCPP-32-101 certification exam is designed for individuals who are seeking to become certified professionals in Python programming. This exam is part of the PCPP1 certification program, which is an industry-recognized certification that validates the skills and knowledge of individuals in Python programming.
NEW QUESTION # 14
Select the true statements about the sqlite3 module. (Select two answers.)
- A. The execute method allows you to perform several queries at once
- B. The fetchalt method returns None when no rows are available
- C. The execute method is provided by the Cursor class
- D. The fetchone method returns None when no rows are available
Answer: C,D
Explanation:
Explanation
The execute method is provided by the Cursor class
This statement is true because the execute method is one of the methods of the Cursor class in the sqlite3 module. The Cursor class represents an object that can execute SQL statements and fetch results from a database connection. The execute method takes an SQL query as an argument and executes it against the database. For example, cur = conn.cursor (); cur.execute ("SELECT * FROM table") creates and executes a cursor object that selects all rows from a table.
The fetchone method returns None when no rows are available
This statement is true because the fetchone method is another method of the Cursor class in the sqlite3 module.
The fetchone method fetches the next row of a query result set and returns it as a single tuple or None if no more rows are available. For example, row = cur.fetchone () fetches and returns one row from the cursor object or None if there are no more rows.
NEW QUESTION # 15
Analyze the following snippet and select the statement that best describes it.
- A. The code is missing a placeholder for unnamed parameters.
- B. The *arg parameter holds a list of unnamed parameters
- C. The code is syntactically correct despite the fact that the names of the function parameters do not follow the naming convention
- D. The code is syntactically incorrect - the function should be defined as def f1 (*args, **kwargs)
Answer: B
Explanation:
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.
NEW QUESTION # 16
What does the term deserialization mean? Select the best answer.
- A. It is a process of creating Python objects based on sequences of bytes.
- B. It is a process of assigning unique identifiers to every newly created Python object
- C. It is a process of converting the structure of an object into a stream of bytes
- D. It is another name for the data transmission process
Answer: A
Explanation:
Explanation
answer A. Deserialization is the process of converting data that has been serialized or encoded in a specific format, back into its original form as an object or a data structure in memory. In Python, this typically involves creating Python objects based on sequences of bytes that have been serialized using a protocol such as JSON, Pickle, or YAML.
For example, if you have a Python object my_obj and you want to serialize it to a JSON string, you might do something like this:
importjson
serialized_obj = json.dumps(my_obj)
To deserialize the JSON string back into a Python object, you would use the json.loads() method:
deserialized_obj = json.loads(serialized_obj)
This would convert the JSON string back into its original Python object form.
NEW QUESTION # 17
Which one of the following methods allows you to debug an XML tree in the xml.etree ELementTree module?
- A. debug
- B. log
- C. dump
- D. parse
Answer: C
Explanation:
Explanation
The dump() method in the xml.etree.ElementTree module allows you to output a debug representation of an XML tree to a file or standard output. This method is useful for analyzing the structure of the tree and tracking down errors.
NEW QUESTION # 18
Select the true statement about PEP 8 recommendations related to line breaks and binary operators.
- A. There is no specific PEP 8 recommendation related to using line breaks with binary operators.
- B. It is recommended that you use line breaks after binary operators to improve code readability.
- C. It is permissible to use line breaks before or after a binary operator as long as the convention is consistent locally However, for new code it is recommended that break lines should be used only after binary operators.
- D. It is recommended that you use line breaks before binary operators to improve code readability.
Answer: D
Explanation:
Explanation
According to PEP 8, Python's official style guide, line breaks before binary operators produce more readable code, especially in code blocks with long expressions. This is stated in several sources (1,2,6,8) and is a widely accepted convention.
References:
* https://www.python.org/dev/peps/pep-0008/#should-a-line-break-before-or-after-a-binary-operator
* https://stackoverflow.com/questions/30614124/are-long-lines-broken-up-before-or-after-binary-operators-
* https://www.quora.com/What-is-PEP-8-Python
* https://www.techbeamers.com/python-tutorial-pep-8/
* https://www.section.io/engineering-education/python-coding-conventions-guidelines-for-python-programm
* https://towardsdatascience.com/a-step-in-pep8-style-guide-improving-the-readability-of-the-code-8114fd4
* https://www.codementor.io/@rishikeshdhokare/python-coding-style-best-practices-that-every-python-prog
* https://www.dataschool.io/python-pep8-tips-and-tricks/
NEW QUESTION # 19
Select the true statement about the___name___attribute.
- A. ___name is a special attribute, which is inherent for both classes and instances, and it contains a dictionary of object attributes.
- B. ___name___is a special attribute, which is inherent for both classes and instances, and it contains information about the class to which a class instance belongs.
- C. __name___is a special attribute, which is inherent for classes and it contains information about the class to which a class instance belongs.
- D. __name___is a special attribute, which is inherent for classes, and it contains the name of a class.
Answer: D
Explanation:
Explanation
The true statement about the __name__ attribute is D. name is a special attribute, which is inherent for classes, and it contains the name of a class. The __name__ attribute is a special attribute of classes that contains the name of the class as a string.
The __name__ attribute is a special attribute in Python that is available for all classes, and it contains the name of the class as a string. The __name__ attribute can be accessed from both the class and its instances using the dot notation.
NEW QUESTION # 20
Select the true statements about the following invocation:
(Select two answers.)
- A. It addresses a service deployed at localhost (the host where the code is run).
- B. It addresses a service whose timeout is set to 3000 ms.
- C. It addresses a service listening at port 3000.
- D. It addresses a service located at the following address local.host.com.
Answer: A,C
Explanation:
Explanation
It addresses a service deployed at localhost (the host where the code is run).
This statement is true because localhost is a special hostname that refers to the local machine or the current host where the code is run. It is equivalent to using the IP address 127.0.0.1, which is the loopback address of the network interface. By using localhost as the hostname, the invocation addresses a service that is deployed on the same machine as the client.
It addresses a service listening at port 3000.
This statement is true because port 3000 is the part of the URL that follows the colon after the hostname. It specifies the port number where the service is listening for incoming requests. A port number is a 16-bit integer that identifies a specific process or application on a host. By using port 3000, the invocation addresses a service that is listening at that port.
It addresses a service whose timeout is set to 3000 ms.
This statement is false because timeout is not a part of the URL, but a parameter that can be passed to the requests.get () function in Python. Timeout specifies how long to wait for the server to send data before giving up. It is measured in seconds, not milliseconds. By using timeout=3, the invocation sets the timeout to 3 seconds, not 3000 ms.
It addresses a service located at the following address local.host.com.
This statement is false because local.host.com is not the same as localhost. Local.host.com is a fully qualified domain name (FQDN) that consists of three parts: local, host, and com. It requires DNS resolution to map it to an IP address. Localhost, on the other hand, is a special hostname that does not require DNS resolution and always maps to 127.0.0.1. By using localhost as the hostname, the invocation does not address a service located at local.host.com.
References:
https://docs.python.org/3/library/requests.html : https://en.wikipedia.org/wiki/Localhost :
https://en.wikipedia.org/wiki/Port_(computer_networking) :
https://en.wikipedia.org/wiki/Fully_qualified_domain_name
NEW QUESTION # 21
A socket object is usually created by which one of the following invocations?
- A. socket = socket.socket(server address)
- B. socket. socket (socket_domain, socket_type)
- C. socket = socket. socket (socket_domain, socket_type, server_address)
- D. socket = socket. socket (socket_number)
Answer: B
Explanation:
Explanation
A socket object is usually created using the socket() constructor provided by the socket module in Python. The correct invocation is socket.socket(socket_domain, socket_type). This creates a new socket object with the specified socket domain and type.
NEW QUESTION # 22
Select the true statements related to PEP 8 programming recommendations for code writing. (Select two answers:)
- A. You should use the not ... is operator (e.g. if not spam is None:), rather than the is not operator (e.g.if spam is notNone:), to increase readability.
- B. You should write code in a way that favors the CPython implementation over PyPy, Cython. and Jython.
- C. You should not write string literals that rely on significant trailing whitespaces as they may be visually indistinguishable, and certain editors may trim them
- D. You should make object type comparisons using the ismstanceQ method (e.g. if isinstance (obj, int) :) instead of comparing types directly (eg if type(obj) is type(i)).
Answer: C,D
Explanation:
Explanation
The two true statements related to PEP 8 programming recommendations for code writing are Option B and Option D.
Option B is true because PEP 8 recommends making object type comparisons using the isinstance() method instead of comparing types directly 1.
Option D is true because PEP 8 recommends not writing string literals that rely on significant trailing whitespaces as they may be visually indistinguishable, and certain editors may trim them 1.
NEW QUESTION # 23
Analyze the code and choose the best statement that describes it.
- A. The code is responsible for the support of the inequality operator i.e. i =
- B. The code is erroneous
- C. ___ne___() is not a built-in special method
- D. The code is responsible for the support of the negation operator e.g. a = - a.
Answer: A
Explanation:
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.
NEW QUESTION # 24
Analyze the following snippet and decide whether the code is correct and/or which method should be distinguished as a class method.
- A. The gexNumberOfcrosswords () and issrived methods should be decorated with @classzoechod.
- B. The getNumberofCrosswords () method should be decorated With @classmethod.
- C. The code is erroneous.
- D. There is only one initializer, so there is no need for a class method.
Answer: B
Explanation:
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.
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:
classCrossword:
numberofcrosswords =0
def __init__(self, author, title):
self.author = author
self.title = title
Crossword.numberofcrosswords +=1
@classmethod
defgetNumberofCrosswords(cls):
returncls.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.
NEW QUESTION # 25
Which of the following examples using line breaks and different indentation methods are compliant with PEP
8 recommendations? (Select two answers.)
- A.
- B.
- C.
- D.
Answer: B,C
Explanation:
Explanation
The correct answers are B. Option B and D. Option D. Both options B and D are compliant with PEP 8 recommendations for line breaks and indentation. PEP 8 recommends using 4 spaces per indentation level and breaking lines before binary operators. In option B, the arguments to the print function are aligned with the opening delimiter, which is another acceptable way toformat long lines according to PEP 8. In option D, the second line is indented by 4 spaces to distinguish it from the next logical line.
NEW QUESTION # 26
Look at the following code snippets and decide which ones follow PEP 8 recommendations for whitespacesin expressions and statements(Select two answers.)
- A. A whitespace immediately before a comma,semicolon, and colon:
- B. No whitespace immediately before the opening parenthesis that starts the list of arguments of a function call:
- C. No whitespace between a trailing comma and a following closing parenthesis:
- D. A whitespace immediately after the opening parenthesis that starts indexing or slicing:
Answer: B,C
Explanation:
Explanation
Option A is true because PEP 8 recommends avoiding extraneous whitespace immediately inside parentheses, brackets or braces 1.
Option C is true because PEP 8 recommends avoiding extraneous whitespace between a trailing comma and a following close parenthesis 1.
NEW QUESTION # 27
What is ElementTree?
- A. A Python library that contains an API used for parsing and manipulating JSON files.
- B. A Python built-in module that contains functions used for parsing and creating XML data.
- C. A Python built-in module that contains functions used for creating HTML files.
- D. A Python library that contains functions and tools used for manipulating text files in GUI Programming.
Answer: B
Explanation:
Explanation
ElementTree is a Python built-in module that provides a simple and efficient API for parsing and creating XML data. It allows you to access and manipulate XML data in a very straightforward way, making it easy to write XML processing applications.
NEW QUESTION # 28
Select the true statements about sockets. (Select two answers)
- A. A socket is always the secure means by which computers on a network can safely communicate, without the risk of exposure to an attack
- B. A socket is a connection point that enables a one-way communication only between remote processes
- C. A socket is a connection point that enables a two-way communication between programs running in a network.
- D. A socket can be used to establish a communication endpoint for processes running on the same or different machines.
Answer: C,D
Explanation:
Explanation
A socket is a connection point that enables a two-way communication between programs running in a network.
This statement is true because a socket is a software structure that serves as an endpoint for sending and receiving data across a network. A socket is defined by an application programming interface (API) for the networking architecture, such as TCP/IP. A socket can be used to establish a communication channel between two programs running on the same or different network nodes12.
A socket is always the secure means by which computers on a network can safely communicate, without the risk of exposure to an attack.
This statement is false because a socket by itself does not provide any security or encryption for the data transmitted over the network. A socket can be vulnerable to various types of attacks, such as eavesdropping, spoofing, hijacking, or denial-of-service. To ensure secure communication, a socket can use additional protocols or mechanisms, such as SSL/TLS, SSH, VPN, or firewall3.
A socket is a connection point that enables a one-way communication only between remote processes.
This statement is false because a socket can enable both one-way and two-way communication between processes running on the same or different network nodes. A socket can be used for connection-oriented or connectionless communication, depending on the type of protocol used. For example, TCP is a connection-oriented protocol that provides reliable and bidirectional data transfer, while UDP is a connectionless protocol that provides unreliable and unidirectional data transfer12.
A socket can be used to establish a communication endpoint for processes running on the same or different machines.
This statement is true because a socket can be used for inter-process communication (IPC) within a single machine or across different machines on a network. A socket can use different types of addresses to identify the processes involved in the communication, such as IP address and port number for network sockets, or file name or path for Unix domain sockets12.
References:
1: https://en.wikipedia.org/wiki/Network_socket 2:
https://www.geeksforgeeks.org/socket-in-computer-network/ 3:
https://www.tutorialspoint.com/what-is-a-network-socket-computer-networks
NEW QUESTION # 29
What isa___traceback___?
(Select two answers )
- A. An attribute that holds interesting information that is particularly useful when the programmer wants to store exception details in other objects
- B. A special method delivered by the traceback module to retrieve a full list of strings describing thetraceback
- C. An attribute that is added to every object when the traceback module is imported
- D. An attribute owned by every exception object
Answer: A,D
Explanation:
Explanation
The correct answers are A. An attribute owned by every exception object and D. An attribute that holds interesting information that is particularly useful when the programmer wants to store exception details in other objects. A traceback is an attribute of an exception object that contains a stack trace representing the call stack at the point where the exception was raised. The traceback attribute holds information about the sequence of function calls that led to the exception, which can be useful for debugging and error reporting.
NEW QUESTION # 30
If purple can be obtained from mixing red and blue, which color codes represent the two ingredients? Select two answers)
- A. #FFFFFF
- B. #0000FF
- C. #000000
- D. #FF0000
Answer: B,D
NEW QUESTION # 31
What will be the content of the co/ors.csv filewhen you run the following code?
A)
B)
C)
D)
An exception will be raised.
- A. Option A
- B. Option D
- C. Option C
- D. Option B
Answer: D
NEW QUESTION # 32
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