5.2 Interpret an External Script to Configure a Cisco Device Using a REST API 350-501 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   Which authentication method for a Cisco device REST API involves sending a username and password in the HTTP Authorization header, encoded in Base64?

   • ABasic authentication
   • BAPI key authentication
   • CToken-based authentication
   • DOAuth 2.0 client credentials
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2. 2application · medium

   An engineer is reviewing a Python script that uses the requests library to interact with a Cisco IOS XE device via RESTCONF. The script includes the following code: response = requests.post('https://192.168.1.1/restconf/data/Cisco-IOS-XE-native:native/interface/GigabitEthernet', auth=('admin', 'secret'), json={...}, headers={'Content-Type': 'application/yang-data+json'}). The script receives a 201 status code. What does this indicate?

   • AThe request was accepted but the configuration has not been applied yet.
   • BThe request was unauthorized but the server returned 201 to avoid revealing the resource.
   • CThe request was successful but no content is returned.
   • DThe interface was successfully created.
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4. 3foundation · easy

   A REST API request to a Cisco device returns a 404 Not Found status. What is the most likely cause?

   • AThe server encountered an internal error while processing the request.
   • BThe request payload was malformed or invalid.
   • CThe requested resource or endpoint does not exist on the device.
   • DThe client provided invalid authentication credentials.
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5. 4application · medium

   An engineer is troubleshooting a RESTCONF script that is failing to delete a loopback interface on a Cisco IOS XE device. The script sends a DELETE request to /restconf/data/Cisco-IOS-XE-native:native/interface/Loopback=100. The response is 404 Not Found. What is the most likely cause?

   • AThe interface does not exist on the device.
   • BThe script is using the wrong HTTP method; it should use POST to delete.
   • CThe script is missing the 'Content-Type' header, so the server cannot process the request.
   • DThe script is using the wrong URL path; it should be /restconf/data/Cisco-IOS-XE-native:native/interface/Loopback/100.
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6. 5application · medium

   A Python script uses the requests library to configure a Cisco IOS XE device via RESTCONF. The script sends a PUT request to /restconf/data/Cisco-IOS-XE-native:native/interface/GigabitEthernet/2 with a JSON payload that includes 'description': 'Uplink to Core'. The script checks the response status code and expects 204. However, the script receives a 201 status code. What is the most likely reason for this difference?

   • AThe script sent the payload in XML format, so the server returned 201 instead of 204.
   • BThe script used the wrong HTTP method; it should have used POST to create the resource.
   • CThe server requires the 'If-Match' header to return 204; without it, it returns 201.
   • DThe interface did not exist before the PUT, so the server created it and returned 201 Created.
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