5. Explain the Benefits of Organizing Code into Methods / Functions, Classes, and Modules 200-901 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A network automation team is reviewing a monolithic Python script that configures devices, collects logs, and sends email notifications. The script is hard to test because every run performs all actions. The team wants to write unit tests for the log-collection logic without triggering device configuration or email sends. Which refactoring approach best enables this?

   • ABreak the script into separate functions for each task and allow the main function to call them conditionally.
   • BAdd a global flag that skips email sending when set to True.
   • CWrap the entire script in a try-except block to catch errors during testing.
   • DUse print statements to trace the execution flow during testing.
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2. 12foundation · easy

   A network automation engineer writes a Python script that performs the same device login and configuration sequence in multiple places. Which benefit of using a function is most directly realized by replacing those repeated blocks with a single function call?

   • AThe script automatically handles all possible error conditions.
   • BThe script runs faster because the function is compiled once.
   • CThe script no longer needs to import external modules.
   • DThe script becomes easier to maintain because changes are made in one place.
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4. 13foundation · easy

   How do modules help manage naming conflicts in a large Python codebase?

   • AThey automatically rename all variables to be unique.
   • BThey prevent the use of global variables entirely.
   • CThey require all names to be prefixed with the module name.
   • DThey create separate namespaces for their contents.
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5. 14expert · hard

   A developer is writing a Python script that needs to perform the same sequence of operations on multiple devices: connect, authenticate, retrieve config, and disconnect. The sequence is identical except for the device address and credentials. The developer wants to avoid repeating the sequence code for each device. What is the best way to implement this?

   • ACreate a separate module for each device and import the sequence from each module.
   • BDefine a function that takes the device address and credentials as parameters and performs the sequence, then call it for each device.
   • CUse a global variable to store the current device and update it before each sequence.
   • DCopy the sequence code into a loop and change the device variables inside the loop.
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6. 15expert · hard

   A developer is writing a Python script that processes network device logs. The script currently has a function that reads a log file, parses it, and returns a list of events. The developer wants to reuse this function in a different script that processes logs from a different source (e.g., a network stream instead of a file). What is the best way to modify the function to support both sources?

   • AUse a global variable to hold the current source and have the function read from it.
   • BRefactor the function to accept a file-like object instead of a file path, so it can read from any source that provides a read() method.
   • CCreate a second function that duplicates the parsing logic but reads from a stream.
   • DAdd a parameter to the function that specifies the source type and use if-else to handle each type.
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