Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 341:

  Refer to the exhibit.

  

  Which Python data structure does my_json contain?

  A. map

  B. list

  C. json

  D. dict

  Correct Answer: D

  Reference: https://stackoverflow.com/questions/34764979/loading-python-string-with-u-as-json?noredirect=1andlq=1

• Question 342:

  On which port does NETCONF operate by default?

  A. 23

  B. 443

  C. 822

  D. 830

  Correct Answer: D

• Question 343:

  Which device is a system that monitors and controls incoming and outgoing network traffic based on predetermined security roles?

  A. router

  B. switch

  C. load balancer

  D. firewall

  Correct Answer: D

• Question 344:

  Which two statements are true about Cisco UCS Manager, Cisco UCS Director, or Cisco Intersight APIs? (Choose two.)

  A. UCS Manager uses JSON to encode API interactions and utilizes Base64-encoded credentials in the HTTP header for authentication.

  B. UCS Director API interactions can be XML- or JSON-encoded and require an API key in the HTTP header for authentication.

  C. Cisco Intersight uses XML to encode API interactions and requires an API key pair for authentication.

  D. UCS Manager API interactions are XML-encoded and require a cookie in the method for authentication.

  E. Cisco Intersight API interactions can be encoded in XML or JSON and require an API key in the HTTP header for authentication.

  Correct Answer: BD

  Reference: https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/ucs-director/rest-api-getting-started-guide/6-5/cisco-ucs-director-REST-API-getting-started-65.html https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/api/b_ucs_api_book.pdf

• Question 345:

  Which description of a default gateway is true?

  A. It is a security feature that denies certain traffic.

  B. It is a device that receives IP packets that have no explicit next-hop in the routing table.

  C. It is a feature that translates between public and private addresses.

  D. It is a device that receives Layer 2 frames with an unknown destination address.

  Correct Answer: D

  Reference: https://www.certificationkits.com/cisco-certification/ccna-articles/cisco-ccna-intro-to-routing-basics/cisco-ccna-default-gateway-a-default-routes/

• Question 346:

  Which product provides network controller-level management features?

  A. Cisco ISE

  B. Cisco DNA Center

  C. Cisco UCS Manager

  D. Cisco NX-OS

  Correct Answer: B

  Reference: https://www.cisco.com/c/en/us/products/cloud-systems-management/index.html

• Question 347:

  Refer to the exhibit.

  

  A process on the host wants to access the service running inside this Docker container.

  Which port is used to make a connection?

  A. only outbound connections between 3000 and 5000 are possible

  B. port 3000

  C. any port between 3000 and 5000

  D. port 5000

  Correct Answer: B

  https://docs.docker.com/desktop/networking/

  Port Mapping

  When you run a container with the -p argument, for example:

  docker run -p 80:80 -d nginx

  Docker Desktop makes whatever is running on port 80 in the container (in this case, nginx) available on port 80 of localhost.

  In this example, the host and container ports are the same.

  If, for example, you already have something running on port 80 of your host machine, you can connect the container to a

  different port:

  docker run -p 8000:80 -d nginx

  Now, connections to localhost:8000 are sent to port 80 in the container.

  The syntax for -p is HOST_PORT:CLIENT_PORT.

• Question 348:

  What is a benefit of using functions in the code for the development process?

  A. better user experience in the end product

  B. improves code performance

  C. easier to compile the code

  D. faster code development

  Correct Answer: D

  https://www.techwalla.com/articles/the-advantages-disadvantages-of-using-functions-procedures-in-computer-programming#:~:text=An%20advantage%20of%20using%20functions,cut%20and%20paste%20the%20routine

• Question 349:

  What is a functionality of the Waterfall method as compared to the Agile method for software development?

  A. Waterfall increases agility to implement faster while Agile promotes reliability.

  B. A phase begins after the previous phase has ended in Waterfall while Agile phases run in parallel.

  C. Customers get feedback during the process in Waterfall while they can see the result at the end in Agile.

  D. Requirements can be updated in Waterfall while in Agile it should be gathered in the beginning.

  Correct Answer: B

  The key difference between Agile vs. Waterfall is that Waterfall breaks down software development into isolated phases that flow into each other, while Agile advocates iterative development cycles in which multiple lifecycle phases can run in parallel.

• Question 350:

  Which two statements describe the advantages of using a version control system? (Choose two.)

  A. It allows for branching and merging so that different tasks are worked on in isolation before they are merged into a feature or master branch.

  B. It provides tooling to automate application builds and infrastructure provisioning.

  C. It allows multiple engineers to work against the same code and configuration files and manage differences and conflicts.

  D. It provides a system to track User Stories and allocate to backlogs.

  E. It allows developers to write effective unit tests.

  Correct Answer: AC