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| Section | Weight | Objectives |
|---|---|---|
| Network Programming | 18% | - TCP/IP & Socket Programming - REST API Basics - JSON/XML Data Exchange - HTTP & Client-Server Communication |
| GUI Programming | 20% | - Dialogs & Application Structure - Event-Driven Paradigm - Tkinter Basics & Widgets - Event Handling & Callbacks |
| Modules, Packages & Advanced Features | 10% | - Import System & Namespaces - Functional Programming Tools - Decorators & Context Managers |
| File & Data Processing | 15% | - SQLite3 Database Operations - CSV & Configuration Files - Logging & System Interaction - XML & JSON Parsing |
| Coding Conventions, Best Practices & Standardization | 12% | - Pythonic Principles - PEP 1, PEP 8, PEP 20, PEP 257 - Code Readability & Documentation |
| Advanced Object-Oriented Programming | 25% | - Shallow vs Deep Copy & Serialization - Advanced Exceptions & Exception Chaining - Design Patterns - Multiple Inheritance & Mixins - Metaclasses & Metaprogramming - Abstract Base Classes - Attribute Access & Descriptors |
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NEW QUESTION # 25
Select the true statements about the sqlite3 module. (Select two answers.)
Answer: A,B
Explanation:
C). 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.
D). 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 # 26
Analyze the following snippet and select the statement that best describes it.
Answer: C
Explanation:
Explanation
In the given code snippet, an instance of OwnMath exception is raised with an explicitly specified __cause__ attribute that refers to the original exception (ZeroDivisionError). This is an example of explicitly chaining exceptions in Python.
NEW QUESTION # 27
What is a static method?
Answer: C
Explanation:
Explanation
A static method is a method that belongs to a class rather than an instance of the class. It is defined using the @staticmethod decorator and does not take a self or cls parameter. Static methods are often used to define utility functions that do not depend on the state of an instance or the class itself.
NEW QUESTION # 28
Which of the following methods allow you to load a configuration using ConfigParser? (Select two answers.)
Answer: B,D
Explanation:
ConfigParser is a built-in library in Python that allows you to read and write configuration files. The read method is used to read the configuration file which can be in any of the supported file formats, such as INI, YAML, and JSON. The read_dict method is used to read the configuration from a Python dictionary. The read_conf and read_str options are not valid methods in the ConfigParser module.
Therefore, the correct options to load a configuration using ConfigParser are A. read and D. read_string.
Reference: Official Python documentation on ConfigParser: https://docs.python.org/3/library/configparser.
html
NEW QUESTION # 29
Select the true statements about the following invocation:
(Select two answers.)
Answer: B,D
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 # 30
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