Cisco Cisco Certified DevNet Professional 350-901 Questions & Answers

• Question 261:

  Refer to the exhibit.

  

  The cURL POST request creates an OAuth access token for authentication with FDM API requests. What is the purpose of the file "@token_data" that cURL is handling?

  A. This file is a container to log possible error responses in the request.

  B. This file is given as input to store the access token received from FDM.

  C. This file is used to send authentication related headers.

  D. This file contains raw data that is needed for token authentication.

  Correct Answer: D

• Question 262:

  

  Refer to the exhibit above and click on the IETF Routing tab in the top left corner to help with this question. A developer is trying to update the routing instance by adding a new route to the routes list using the URL in the exhibit. What action must be taken to fix the error being received?

  A. Fix the body being sent to update the routes list.

  B. Update the authorization credentials.

  C. Change the url to ''/ietf-routing:routing/routing-instance=default''.

  D. Change the URL to ''/ietf-routing:routing-instance/default''.

  E. Change the HTTP Method being used to make the change

  Correct Answer: C

• Question 263:

  Refer to the exhibit.

  

  An application's REST API GET call is tested to the inventory database. Which missing code must be included to limit the number of values that are returned from the query to 20?

  A. Inventory=20

  B. limit=?2Q

  C. inventory=limit?20

  D. inventory? Iimit20

  Correct Answer: D

• Question 264:

  Which statement about microservices architecture is true?

  A. Applications are written in a single unit.

  B. It is a complex application composed of multiple independent parts.

  C. It is often a challenge to scale individual parts.

  D. A single faulty service can bring the whole application down.

  Correct Answer: B

• Question 265:

  Refer to the exhibit.

  

  A Python developer is creating a wireless network device inventory application for local deployment of Cisco access points The developer is retrieving an access point ID by using a REST API The output indicates that there was a KeyError when parsing the JSON response. What returns the expected output of 266 at line 14?

  

  A. B. C. D.

  Correct Answer: A

• Question 266:

  Into which two areas are AppDynamics APIs categorized? (Choose two.)

  A. application-centric

  B. analytics-events

  C. database-visibility

  D. platform-side

  E. agent-side

  Correct Answer: DE

• Question 267:

  An application has been developed for monitoring rooms in Cisco Webex. An engineer uses the application to retrieve all the messages from a Cisco Webex room, but the results are slowly presented. Which action optimizes calls to retrieve the messages from the /v1/messages endpoint?

  A. Define the ma property by using the pagination functionality.

  B. Set the beforeMessage property to retrieve the messages sent before a specific message ID.

  C. Avoid unnecessary calls by using a prior request to /v1/rooms to retrieve the last activity property.

  D. Filter the response results by specifying the created property in the request.

  Correct Answer: A

  Reference: https://apphub.webex.com/messaging/applications/paginate-cisco-systems- 82277

• Question 268:

  Refer to the exhibit.

  

  An application uses an API to periodically sync a large data set. Based on the HTTP message sequence provided, which statements are true about the caching behavior seen in the scenario? (Choose two.)

  A. The full dataset was transmitted to the client twice.

  B. The dataset changed sometime between message #4 and #5.

  C. A partial dataset was transmitted to the client in message #4.

  D. The dataset did not change during the scenario.

  E. Messages #3 and #5 are equivalent.

  Correct Answer: AD

• Question 269:

  A cloud native project is being worked on in which all source code and dependencies are written in Python, Ruby, and/or JavaScipt. A change in code triggers a notification to the CI/CD tool to run the CI/CD pipeline. Which step should be omitted from the pipeline?

  A. Deploy the code to one or more environments, such as staging and/or production.

  B. Build one of more containers that package up code and all its dependencies.

  C. Compile code.

  D. Run automated tests to validate the correctness.

  Correct Answer: C

• Question 270:

  Refer to the exhibit.

  

  A network engineer needs to handle API errors in their requests when users do not have permission to access the resource, even if they are authenticated and authorized. Which line of code needs to be placed on the snippet where the code is missing to handle these API errors?

  A. if r.status_code == 403

  B. il if r.raise for status() == 403

  C. if r.raise for_status() = 401

  D. if r.status_code = 401

  Correct Answer: B