350-401 Automation Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  import requests url = 'https://192.168.1.1/restconf/data/ietf-interfaces:interfaces/interface=GigabitEthernet1' headers = {'Accept': 'application/yang-data+json'} response = requests.get(url, headers=headers, auth=('admin', 'password'), verify=False) hostname = response.json()['name']

  Why it's wrong here

  This URL retrieves interface information, not the hostname. The response would contain interface details, and the key 'name' would give the interface name, not the device hostname. This does not meet the requirement of retrieving the configured hostname. The URL path is for interfaces, not the native hostname.

• ✗

  import requests url = 'https://192.168.1.1/restconf/data/Cisco-IOS-XE-native:native/hostname' headers = {'Accept': 'application/yang-data+json'} response = requests.get(url, headers=headers, verify=False) hostname = response.json()['Cisco-IOS-XE-native:hostname']

  Why it's wrong here

  This snippet omits authentication credentials. RESTCONF on Cisco IOS XE requires authentication; without it, the request will return a 401 Unauthorized error. The URL and headers are correct, but the lack of auth makes it fail. Basic authentication must be provided via the auth parameter or a session.

• ✗

  import requests url = 'https://192.168.1.1/restconf/data/Cisco-IOS-XE-native:native/hostname' headers = {'Content-Type': 'application/yang-data+json'} response = requests.get(url, headers=headers, auth=('admin', 'password'), verify=False) hostname = response.json()['hostname']

  Why it's wrong here

  This uses the Content-Type header instead of Accept. For a GET request, Accept is used to specify the desired response format. Content-Type is for the request body, which is not present here. Also, the JSON key is missing the 'Cisco-IOS-XE-native:' prefix, so the key would be incorrect. This snippet would likely fail to parse the hostname.

• ✓

  import requests url = 'https://192.168.1.1/restconf/data/Cisco-IOS-XE-native:native/hostname' headers = {'Accept': 'application/yang-data+json'} response = requests.get(url, headers=headers, auth=('admin', 'password'), verify=False) hostname = response.json()['Cisco-IOS-XE-native:hostname']

  Why this is correct

  This snippet uses the correct RESTCONF URL for the hostname, sets the Accept header to 'application/yang-data+json', provides basic authentication credentials, and disables SSL verification. The JSON response for this leaf is a dictionary with the key 'Cisco-IOS-XE-native:hostname'. This correctly retrieves the hostname.

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