Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 81:

  What is the purpose of grouping devices in a VLAN?

  A. Devices communicate as if they are connected on the same wire.

  B. Multicast network traffic is limited to the VLAN connected devices.

  C. Unicast messages are limited to the clients connected on the same VLAN.

  D. Network traffic is load balanced between the devices connected to the VLAN.

  Correct Answer: A

  When devices are grouped into a VLAN, they can communicate as if they are connected on the same wire, even if they are physically located on different parts of the network. This can be useful for reducing the number of physical cables needed and for improving network performance. However, there are other purposes for grouping devices in a VLAN as well, such as limiting multicast network traffic to the VLAN connected devices and controlling which devices can communicate with each other.

• Question 82:

  Which network device forwards packets between networks?

  A. router

  B. load balancer

  C. firewall

  D. switch

  Correct Answer: D

• Question 83:

  Refer to the exhibit.

  

  A developer creates a Python script to query a REST API by using an HTTP GET request. The remote server will authorize the request only if it includes HTTP Basic Auth parameters. The username is admin and the password is devnet123. Which line of code needs to be placed on the snippet where the code is missing?

  A. requests.get(url, auth= ('admin','devnet123'))

  B. requests.get(url, auth=HTTPDigestAuth('admin','devnet123'))

  C. requests.get(url, auth=HTTPBasicAuth('admin',:'devnet123'))

  D. requests.get(url, 'admin', 'devnet123')

  Correct Answer: A

• Question 84:

  What are two advantages of model-driven programmability as compared to traditional network management? (Choose two.)

  A. standardized transport protocol

  B. better performance

  C. better visibility and control

  D. device abstraction

  E. access to more routing features

  Correct Answer: CD

• Question 85:

  Which cloud-based security solution is focused on DNS resolution?

  A. Cisco AMP

  B. Cisco Meraki Dashboard

  C. Cisco DNA Center

  D. Cisco Umbrella

  Correct Answer: D

• Question 86:

  Refer to the exhibit.

  

  An engineer needs to construct a Bash command to create a new backup folder and then copy all files from the current folder to the backup folder. Which code snippet must be placed on the blank in the code?

  A. for file in $ (cd); B. for file in $ (ls);

  C. for files in $ (ls);

  D. for file in files;

  Correct Answer: B

• Question 87:

  The API documentation has this requirement for a REST API request:

  “For methods that accept request parameters, the platform accepts either application/json or application/x-www-form-urlencoded content types and currently only supports returning data in application/json format”.

  Which field returns content in the required format?

  A. Accept: application/xml; q=0.5, application/json

  B. Content-Type: application/json

  C. Content-Type: application/xml; q=0.5, application/json

  D. Expect: application/json

  Correct Answer: B

• Question 88:

  A developer checks the performance of a web application. The application is in the local data center and used a REST-based API. Based on the API logs, it is discovered that many users abandon API requests. Also, the response is taking too long to get back. What is the reason for this issue?

  A. Token-based authentication is disabled.

  B. Pagination is not implemented.

  C. Rate limiting is not implemented.

  D. Token-based authentication is enabled.

  Correct Answer: C

• Question 89:

  How do the processes used by the Agile methodology compare with the processes used by the Lean methodology?

  A. Agile concentrates on optimizing the development process, and Lean concentrates on optimizing the production process.

  B. Agile and Lean concentrate on optimizing the production process.

  C. Agile and Lean concentrate on optimizing the development process.

  D. Agile concentrates on optimizing the production process, and Lean concentrates on optimizing the development process.

  Correct Answer: A

• Question 90:

  A developer is working on a new feature named ‘feat434370483’ in a branch. A file named ‘devasc321345515.jpg’ has accidentally been staged. The developer needs to remove this so that the commit is performed and branches are merged. Which Git command must be used to unstage the file?

  A. get delete HEAD devasc321345515.jpg

  B. get reset HEAD devasc321345515.jpg

  C. git remove HEAD devasc321345515.jpg

  D. git revert HEAD devasc321345515.jpg

  Correct Answer: B