4. Explain Common HTTP Response Codes Associated with REST APIs 200-901 Practice Questions (Page 6)

Questions 26–30

1. 26application · medium

   A network management application is trying to access a REST API endpoint that has been permanently moved to a new URL. The application receives a 301 Moved Permanently response. What should the application do?

   • AContinue using the old URL because the move is temporary.
   • BCheck the authentication token because it may have expired.
   • CRetry the request after a short delay.
   • DUpdate its configuration to use the new URL provided in the Location header.
   Reveal Solution Discussion Select an answer first
2. 27application · medium

   A network automation script sends a POST request to create a new VLAN on a switch. The API returns 400 Bad Request. What is the most likely cause?

   • AThe request body is malformed or contains invalid data, such as a VLAN ID out of range.
   • BThe VLAN already exists.
   • CThe client is not authenticated.
   • DThe server is temporarily unavailable.
   Reveal Solution Discussion Select an answer first
4. 28expert · hard

   A network automation platform needs to create a large number of configuration changes on multiple devices. The API supports asynchronous processing. The platform sends a POST request to create a configuration change, and the API returns 202 Accepted. What should the platform do next?

   • APoll the status endpoint indicated in the response until the operation completes.
   • BAssume the change is complete and proceed to the next device.
   • CSend the same request again to ensure it is processed.
   • DWait for a fixed 30 seconds before continuing.
   Reveal Solution Discussion Select an answer first
5. 29expert · hard

   A network management application is experiencing intermittent 503 Service Unavailable responses from a REST API. The application is configured to retry immediately three times. The retries are failing. What is the best approach to improve reliability?

   • ASwitch from GET to POST requests.
   • BIgnore the 503 responses and assume the request succeeded.
   • CImplement exponential backoff with a maximum delay and jitter.
   • DIncrease the number of immediate retries to five.
   Reveal Solution Discussion Select an answer first
6. 30foundation · easy

   An API client receives a 400 Bad Request response when sending a JSON payload to a REST API. What is the most likely cause?

   • AThe client is not authenticated.
   • BThe requested resource does not exist.
   • CThe server encountered an internal error while processing the request.
   • DThe JSON payload is malformed or contains invalid syntax.
   Reveal Solution Discussion Select an answer first