Implement Control Flow of Consumer Code for Unrecoverable REST API Errors 350-901 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A developer is writing a Python function that calls the Meraki API to update a switch port's VLAN assignment. The function must handle the case where the switch port does not exist (HTTP 404). The developer wants the function to raise a custom exception so the caller can handle it. Which control flow construct best achieves this?

   • AUse a pass statement to ignore the 404 and continue execution
   • BUse a for loop to iterate over all switch ports and find the matching one
   • CUse an if statement to check the response status code and raise the custom exception
   • DUse a while loop that retries the request until a non-404 response is received
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2. 2application · medium

   A script authenticates to the Cisco SD-WAN vManage API and receives an HTTP 401 Unauthorized response. The script's token was valid 10 minutes ago, and the system clock on the server is correct. The script currently retries the request three times. What is the most likely classification of this error?

   • ARecoverable, because the token may be refreshed and the request retried
   • BUnrecoverable, because the API key is permanently invalid
   • CRecoverable, because the server will accept the request if retried without changes
   • DUnrecoverable, because 401 always indicates a permanent failure
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4. 3application · medium

   A network automation script queries the Meraki API to fetch an organization's inventory. The script receives an HTTP 403 Forbidden response with a JSON body indicating the API key lacks the 'read-only' scope for the organization. The script currently retries the request three times with exponential backoff before failing. What is the most appropriate control flow change?

   • ARetry the request with a different HTTP method (POST instead of GET)
   • BIgnore the 403 and continue processing with an empty inventory list
   • CKeep the retry logic but increase the backoff interval to 30 seconds
   • DTreat the 403 as unrecoverable, log the error, and terminate the script without retrying
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5. 4foundation · easy

   In consumer code, what is the appropriate control flow action when an unrecoverable REST API error is detected?

   • ARetry the request with exponential backoff
   • BChange the HTTP method and retry
   • CTerminate the operation and log the error
   • DSilently ignore the error and continue
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6. 5expert · hard

   A developer is building a script that calls the Cisco Webex API to create a team and then add members. The script receives an HTTP 403 Forbidden when adding a member, with a JSON body stating 'User is not in the same organization'. The script's current logic treats all 403 responses as unrecoverable and terminates. The team wants to distinguish between a 403 caused by a permanent permission issue and a 403 caused by a transient condition. What is the most appropriate approach?

   • ATreat all 403 responses as recoverable and retry with backoff
   • BRetry the 403 once, and if it fails again, terminate
   • CInspect the error body to determine if the 403 is permanent or transient before deciding to retry or terminate
   • DTreat all 403 responses as unrecoverable and terminate
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