A network automation team is troubleshooting a script that fails to update a device's NTP configuration. The script sends a PUT request to /api/v1/ntp with a JSON body containing 'server': '10.0.0.1'. The API returns HTTP 400 Bad Request. The engineer reviews the API documentation and finds that the 'server' field expects an array of strings, not a single string. What is the most likely cause?

The API requires a POST method instead of PUT.

The API expects the server address in a different format.

The request body does not match the expected schema because 'server' should be an array.

The API requires an authentication header.

An engineer is troubleshooting a script that calls a network device API. The script receives HTTP 400 Bad Request. The engineer reviews the API documentation and confirms the request method, URL, and headers are correct. What should the engineer examine next?

The API server logs to see if the request was blocked by a firewall.

The network connectivity between the script and the API server.

The request body to ensure it matches the required JSON schema.

The authentication token to ensure it has not expired.

A network automation engineer is troubleshooting a script that calls a Cisco DNA Center API to retrieve site health. The script uses a GET request with an API token. The response is HTTP 401 Unauthorized. The engineer verifies that the token is not expired and is correctly formatted. What should the engineer check next?

Whether the server is experiencing an outage

Whether the Authorization header is being sent correctly (e.g., 'Bearer ')

Whether the endpoint URL is correct

Whether the request body is valid JSON

An API's documentation shows the following error response example for a validation failure: HTTP/1.1 400 Bad Request Content-Type: application/json {"error": "Invalid field: 'speed' must be an integer"} What does this documentation tell the developer about handling such errors?

The client should retry the request with the same body after a short delay.

The client should ignore the response body and only rely on the status code.

The client should treat this as a server-side error and contact the API administrator.

The client should check the 'error' field in the response body to identify the invalid field and correct the request.

CiscoCertified Network Associate Automation (CCNA Automation)

Domain 2Objective 5

5. Troubleshoot a Problem Given the HTTP Response Code, Request and API Documentation 200-901 Practice Questions (Page 4)

Part of the 2.0 Understanding and Using APIs domain, which accounts for 20% of the 200-901 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–2 from this objective — we provide 35 practice questions to prepare you well beyond it. (estimate)

35questions here

7free pages

4concepts

20%of the exam

Questions 16–20

16expert · hard
A network automation team is troubleshooting a script that fails to update a device's NTP configuration. The script sends a PUT request to /api/v1/ntp with a JSON body containing 'server': '10.0.0.1'. The API returns HTTP 400 Bad Request. The engineer reviews the API documentation and finds that the 'server' field expects an array of strings, not a single string. What is the most likely cause?
Select an answer first
17application · medium
An engineer is troubleshooting a script that calls a network device API. The script receives HTTP 400 Bad Request. The engineer reviews the API documentation and confirms the request method, URL, and headers are correct. What should the engineer examine next?
Select an answer first
18expert · hard
A network automation engineer is troubleshooting a script that calls a Cisco DNA Center API to retrieve site health. The script uses a GET request with an API token. The response is HTTP 401 Unauthorized. The engineer verifies that the token is not expired and is correctly formatted. What should the engineer check next?
Select an answer first
19foundation · easy
An API's documentation shows the following error response example for a validation failure: HTTP/1.1 400 Bad Request Content-Type: application/json {"error": "Invalid field: 'speed' must be an integer"} What does this documentation tell the developer about handling such errors?
Select an answer first
20foundation · easy
Given the following HTTP request, which component identifies the HTTP method? POST /api/v1/devices HTTP/1.1 Host: controller.example.com Content-Type: application/json {"name": "Router1"}
Select an answer first

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5. Troubleshoot a Problem Given the HTTP Response Code, Request and API Documentation 200-901 Practice Questions (Page 4)

Questions 16–20

An engineer is troubleshooting a script that calls a network device API. The script receives HTTP 400 Bad Request. The engineer reviews the API documentation and confirms the request method, URL, and headers are correct. What should the engineer examine next?

An API's documentation shows the following error response example for a validation failure: HTTP/1.1 400 Bad Request Content-Type: application/json {"error": "Invalid field: 'speed' must be an integer"} What does this documentation tell the developer about handling such errors?

Given the following HTTP request, which component identifies the HTTP method? POST /api/v1/devices HTTP/1.1 Host: controller.example.com Content-Type: application/json {"name": "Router1"}

Keep studying — 2.0 Understanding and Using APIs