6.1 Interpret Basic Python Components and Scripts 350-401 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A network engineer is debugging a Python script that uses netmiko to configure switches. The script runs without errors but does not apply the intended configuration. The engineer suspects that the script is not sending the commands correctly. Which debugging technique would be most effective to confirm this?

   • AUse the Python debugger (pdb) to step through the script line by line.
   • BCheck the script's syntax with a linter.
   • CAdd print statements to display the commands being sent and the output received from each device.
   • DRun the script with the -O flag to optimize bytecode.
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2. 12application · medium

   A network engineer runs a Python script that reads a configuration file. The script fails with a FileNotFoundError because the file path is incorrect. The engineer wants to add error handling to the script so that it prints a user-friendly message and exits gracefully. Which code snippet should be used?

   • Awith open('config.txt') as f: data = f.read() print('Configuration file not found.')
   • Btry: with open('config.txt') as f: data = f.read() except FileNotFoundError: print('Configuration file not found.')
   • Ctry: data = open('config.txt').read() except: print('Configuration file not found.')
   • Dif not os.path.exists('config.txt'): print('Configuration file not found.') else: with open('config.txt') as f: data = f.read()
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4. 13foundation · easy

   Which Python library is commonly used to make HTTP requests to REST APIs?

   • Asocket
   • Bparamiko
   • Crequests
   • Dnetmiko
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5. 14foundation · easy

   Which statement correctly imports the 'math' module in Python?

   • Ainclude math
   • Bfrom math import *
   • Cimport math
   • Dusing math
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6. 15application · medium

   A network engineer is writing a Python script to automate VLAN creation on multiple switches. The script reads a list of VLAN IDs from a file and uses netmiko to send commands. The engineer notices that the script only processes the first VLAN ID and then stops. Which of the following is the most likely cause?

   • AThe file read operation uses 'readline()' instead of iterating over the file object.
   • BThe VLAN IDs are stored in a tuple, which is immutable.
   • CThe for loop is missing a colon at the end of its definition.
   • DThe script uses 'return' instead of 'continue' inside the loop.
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