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Advanced Python Programming Quiz Questions and Answers

Answer :
  • Use try-except block to catch specific OSError exceptions.

Explanation :

Using a `try-except` block to specifically catch `OSError` allows the script to handle file path errors gracefully and take corrective actions without interrupting the program flow.--- The above questions and scenario provide a challenging exploration of the os modules capabilities and are in line with practical and conceptual learning objectives in Advanced Python Programming courses.
Answer :
  • It increases the risk of data breaches; implement strong authentication

Explanation :

Without a proper firewall and port policies, a server becomes vulnerable to unauthorized access and potential data breaches; therefore, implementing strong authentication and access control measures is crucial for security.
Answer :
  • SAX processes XML document as a stream, resulting in lower memory consumption.

Explanation :

SAX (Simple API for XML) processes XML data through event-driven parsing, reading one node at a time, which significantly reduces memory consumption compared to DOM, which loads the entire document into memory.
Answer :
  • `os.environ.get()`

Explanation :

The `os.environ.get()` function is used in Python to retrieve environment variables. If the variable is not found, the function can return a default value, which can be specified as the second argument.
Answer :
  • select

Explanation :

The `select` library provides mechanisms to monitor multiple file descriptors, waiting for them to become ready for I/O operations, and is ideal for managing multiple socket connections efficiently.---
Answer :
  • Simplifies SSL terminations and enhances performance

Explanation :

A reverse proxy server can simplify SSL terminations by centralizing the SSL encryption and decryption process, which can enhance overall server performance and manage multiple services efficiently.
Answer :
  • It models arrival and service rates to predict and optimize load

Explanation :

Queueing theory mathematically models the arrival and service rates of client requests, which can help in predicting server load and optimizing performance by managing request handling efficiently.
Answer :
  • none of the above

Explanation :

Neither of 0.1, 0.2 and 0.3 can be represented accurately in binary. The round off errors from 0.1 and 0.2 accumulate and hence there is a difference of 5.5511e-17 between (0.1 + 0.2) and 0.3.
Answer :
  • `xmltojson`

Explanation :

`xmltojson` is a Python library specifically designed to convert XML data to JSON format directly, making it easier to manipulate and integrate with modern data architectures that prefer JSON.