Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 11:

  A developer is writing an application that uses a REST API and the application requires a valid response from the API. Which element of the response is used in the conditional check?

  A. body

  B. headers

  C. link

  D. URL

  E. status code

  Correct Answer: E

• Question 12:

  Refer to the exhibit.

  

  What is the action of the Bash script that is shown?

  A. For all directories in the current folder, the script goes into the directory and makes a new directory.

  B. The script waits until input is entered. If the directory exists, the script goes into it until there is no directory with the same name, then it creates a new directory.

  C. The script waits until input is entered, then it goes into the directory entered and creates a new directory with the same name.

  D. The script goes into the directory called "$ndir" and makes a new directory called "$ndir".

  Correct Answer: B

• Question 13:

  Which two descriptions can be given to an application that is interacting with a webhook? (Choose two.)

  A. receiver

  B. transaction monitor

  C. codec

  D. processor

  E. listener

  Correct Answer: AE

• Question 14:

  What is an advantage of using network programmability?

  A. Manual configuration is faster.

  B. No cloud abstraction occurs.

  C. It removes CLI access for devices.

  D. It provides for more scalable and replicable network provisioning.

  Correct Answer: D

• Question 15:

  In Python, which expression checks whether the script returns a success status code when the Requests library is used?

  A. response.status_code == requests.codes.ok

  B. response.code == requests.codes.ok

  C. response.status_code == requests.ok

  D. response.status_code != requests.codes.ok

  Correct Answer: A

  Reference: https://realpython.com/python-requests/

• Question 16:

  What is an example of a network interface hardware address?

  A. workstation name

  B. IP address

  C. domain name

  D. MAC address

  Correct Answer: D

• Question 17:

  An application calls a REST API and expects a result set of more than 550 records, but each time the call is made, only 25 are returned. Which feature limits the amount of data that is returned by the API?

  A. pagination

  B. payload limit

  C. service timeouts

  D. rate limiting

  Correct Answer: A

  https://developer.atlassian.com/server/confluence/pagination-in-the-rest-api/

• Question 18:

  What is the Git command to delete a local branch named "experiment" without a warning?

  A. git branch -rm experiment

  B. git branch -n experiment

  C. git branch -f experiment

  D. git branch -D experiment

  Correct Answer: D

  Reference: https://www.atlassian.com/git/tutorials/using-branches

• Question 19:

  Which two concepts describe test-driven development? (Choose two.)

  A. User acceptance testers develop the test requirements.

  B. It enables code refactoring.

  C. Tests are created when code is ready for release.

  D. Implementation is driven by incremental testing of release candidates.

  E. Write a test before writing code.

  Correct Answer: BE

  https://www.tutorialspoint.com/software_testing_dictionary/release_candidate.htm

• Question 20:

  Refer to the exhibits.

  

  A developer is troubleshooting an API with the given API documentation and cURL command. What is the cause of this problem?

  A. The authorization header is missing or incomplete.

  B. The request body is missing or incomplete.

  C. The API token specified is expired.

  D. The user is not allowed to post messages from their account.

  Correct Answer: A

  Not B because you would get a 400 error.

  Not C since the token in the page showed is always valid for 12h since last page refresh (so showing the page somehow implies the usage of a valid token). Not D since that would produce another type of error about insufficient priviledges

  for that user (but authorization to use the API would occur correctly), like a 403 forbidden or something similar.