Construct a Python Script Using the Cisco DNA Center APIs to Retrieve and Display Wireless Health Information 350-901 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Which HTTP method and endpoint path are used to obtain an authentication token from the Cisco DNA Center API?

   • APOST /dna/intent/api/v1/auth/token
   • BPOST /dna/system/api/v1/auth/token
   • CGET /dna/intent/api/v1/auth/token
   • DGET /dna/system/api/v1/auth/token
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2. 12application · medium

   A Python script that retrieves wireless health data from Cisco DNA Center sometimes fails with an HTTP 401 error. The developer wants to handle this specific error and retry authentication once before giving up. Which error-handling approach is most appropriate?

   • AIgnore the error and continue with the next request.
   • BUse a while loop that retries the request indefinitely until it succeeds.
   • CCatch requests.exceptions.HTTPError, check if the status code is 401, re-authenticate, and retry the original request once.
   • DCatch all exceptions with a bare except clause and print the error message.
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4. 13application · medium

   A developer wants to display the wireless health data in a human-readable format, including a summary line that shows the average health score across all sites. The data is a list of dictionaries with a 'score' key. Which approach correctly calculates and displays the average?

   • Aaverage = sum(site['score'] for site in data) / len(data) print(average)
   • Bprint(f'Average health score: {sum(site["score"] for site in data) / len(data)}')
   • Caverage = sum(data['score']) / len(data) print(f'Average health score: {average}')
   • Dscores = [site['score'] for site in data] average = sum(scores) / len(scores) print(f'Average health score: {average:.2f}')
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5. 14foundation · easy

   What is the purpose of wrapping API calls in a try-except block in a Python script?

   • ATo convert all errors into warnings.
   • BTo automatically retry failed requests.
   • CTo handle errors gracefully and prevent the script from crashing.
   • DTo make the script run faster.
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6. 15expert · medium

   A developer is writing a script to display wireless health data from Cisco DNA Center. The data may contain sites with a health score of None, indicating that the score is not available. The developer wants to display these sites as 'N/A' and also calculate the average score excluding the None values. Which approach correctly handles this?

   • ASkip sites with None scores entirely when printing and calculating the average.
   • BRaise an exception if a None score is encountered.
   • CConvert None scores to 0 before calculating the average, and print 0 for those sites.
   • DFilter out None scores when calculating the average, and use a conditional expression when printing to display 'N/A' for None.
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