Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 21:

  Before which process is code review performed when version control is used?

  A. checkout of code

  B. merge of code

  C. committing code

  D. branching code

  Correct Answer: B

  Good branching code is here: https://stackoverflow.com/questions/17839235/what-exactly-is-code-branching

• Question 22:

  Which detail is included in a routing table?

  A. broadcast address

  B. TCP or UDP port number

  C. IP protocol

  D. destination next hop or outgoing interface

  Correct Answer: D

  Reference: https://geek-university.com/ccna/routing-table-explained/

• Question 23:

  Which status code is used by a REST API to indicate that the submitted payload is incorrect?

  A. 400

  B. 403

  C. 405

  D. 429

  Correct Answer: A

  Reference: https://community.cisco.com/t5/application-centric/apic-rest-api-produces-inconsistent-response/td-p/2758230

• Question 24:

  What are two roles of an artifact repository in a CI/CD pipeline? (Choose two.)

  A. stores files needed and generated during the build process

  B. provides traceability, search, and management of binary files

  C. is required for CI/CD pipelines executed on a public cloud infrastructure

  D. allows for comparing and merging changes in the source code

  E. is required for managing open source software

  Correct Answer: AB

• Question 25:

  Which principle is a value from the manifesto for Agile software development?

  A. processes and tools over teams and interactions

  B. detailed documentation over working software

  C. adhering to a plan over responding to requirements

  D. customer collaboration over contract negotiation

  Correct Answer: D

  Reference: https://www.cisco.com/c/dam/global/en_hk/solutions/collaboration/files/ agile_product_development.pdf

• Question 26:

  Which statement about authenticating a RESTCONF API session with a router that runs Cisco IOS XE Software is true?

  A. No authentication is required.

  B. OAuth must be used.

  C. A token must be retrieved and the associated string must be embedded in the X-Auth-Token header.

  D. Basic authentication must be used.

  Correct Answer: D

  https://www.cisco.com/c/en/us/td/docs/routers/csr1000/software/restapi/restapi/RESTAPIclient.html

• Question 27:

  What are two advantages of the Model-View-Controller software design pattern? (Choose two.)

  A. allows for multiple views of the same model

  B. separates responsibilities of the code, which makes future modifications easier

  C. simplifies network automation

  D. makes code easier to deploy using CI/CD pipelines

  E. reduces need for error handling

  Correct Answer: AB

• Question 28:

  Refer to the exhibit.

  

  What does the Python function do?

  A. It returns HTTP Basic Authentication.

  B. It returns DNAC user and password.

  C. It reads a token from a local JSON file and posts the token to the DNAC URL.

  D. It returns an authorization token.

  Correct Answer: D

  import requests

  from requests.auth import HTTPBasicAuth

  def get_auth_token():

  url = 'https://sandboxdnac.cisco.com/dna/system/api/v1/auth/token'

  resp = requests.post(url, auth=HTTPBasicAuth("devnetuser", "Cisco123!"))

  token = resp.json()['Token']

  print(token)

  return token

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  Reference: https://community.cisco.com/t5/cisco-digital-network/how-can-i-make-this-script-to-run/td- p/3882782

• Question 29:

  Which Cisco DevNet resource allows access to products in a development lab to explore, learn, and build applications that use Cisco APIs?

  A. DevNet Code Exchange

  B. DevNet Sandbox

  C. DevNet Communities

  D. DevNet Automation Exchange

  Correct Answer: B

  Reference: https://developer.cisco.com/site/sandbox/

• Question 30:

  Which way should be used to safely store the API keys?

  A. in an environment variable unique to the system database

  B. encrypted in a configuration file that is separate from the code

  C. plain text in the code as a constant

  D. encrypted in the code in a function

  Correct Answer: A