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| Section | Weight | Objectives |
|---|---|---|
| Advanced Object-Oriented Programming | 25% | - Metaclasses & Metaprogramming - Advanced Exceptions & Exception Chaining - Multiple Inheritance & Mixins - Attribute Access & Descriptors - Abstract Base Classes - Design Patterns - Shallow vs Deep Copy & Serialization |
| Coding Conventions, Best Practices & Standardization | 12% | - PEP 1, PEP 8, PEP 20, PEP 257 - Code Readability & Documentation - Pythonic Principles |
| GUI Programming | 20% | - Tkinter Basics & Widgets - Event Handling & Callbacks - Dialogs & Application Structure - Event-Driven Paradigm |
| File & Data Processing | 15% | - SQLite3 Database Operations - XML & JSON Parsing - Logging & System Interaction - CSV & Configuration Files |
| Modules, Packages & Advanced Features | 10% | - Import System & Namespaces - Decorators & Context Managers - Functional Programming Tools |
| Network Programming | 18% | - TCP/IP & Socket Programming - REST API Basics - HTTP & Client-Server Communication - JSON/XML Data Exchange |
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NEW QUESTION # 16
In the JSON processing context, the term serialization:
Answer: C
Explanation:
Explanation
In the JSON processing context, the term serialization: A. names a process in which Python data is turned into a JSON string.
Serialization refers to the process of converting a data object, such as a Python object, into a format that can be easily transferred over a network or stored in a file. In the case of JSON, serialization refers to converting Python data into a string representation using the JSON format. This string can be sent over a network or stored as a file, and later deserialized back into the original Python data object.
NEW QUESTION # 17
Select the true statements about the following invocation:
(Select two answers.)
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 # 18
Which of the following examples using line breaks and different indentation methods are compliant with PEP
8 recommendations? (Select two answers.)
Answer: A,D
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 # 19
Which of the following statements related to :memory: are true?
(Select two answers.)
Answer: B,C
Explanation:
The correct answers are C and D. In Python's sqlite3 module, the string ':memory:' is passed to sqlite3.
connect() to create an in-memory SQLite database. This establishes a valid database connection, but the database exists only in RAM and normally disappears when the connection is closed. It is useful for testing, temporary storage, fast operations, and examples where no persistent database file is required.
Option A is wrong because :memory: does not load an existing file-based database into memory. Option B is also incorrect because it is not a deletion command or database management operation. It is simply a special database name recognized by SQLite to create a temporary in-memory database.
NEW QUESTION # 20
Select a log that matches the following format:
'%(name)s[%(levelname)s][%(asctime)s] :%(message)s'
Answer: D
NEW QUESTION # 21
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