Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 71:

  What is the main purpose of a code review?

  A. to identify and review errors with the team

  B. to detect logical errors

  C. to ensure that all code is checked in simultaneously

  D. to provide the technical lead visibility into all code

  Correct Answer: A

• Question 72:

  Which Python data type resembles JSON data structures?

  A. list

  B. dictionary

  C. string

  D. tuple

  Correct Answer: B

• Question 73:

  What are two benefits of organizing code into classes, methods, functions, and modules? (Choose two.)

  A. improves readability

  B. improves reusability

  C. improves parallelism

  D. improves performance

  E. decreases complexity

  Correct Answer: AB

• Question 74:

  Refer to the exhibit.

  

  An engineer is comparing two files by using the unified diff format. What is determined by the content in the file2.py file?

  A. Line 93 of file.py is ‘DEVICE-STATS’.

  B. Line 92 of file2.py is ‘DEVICE-STATS’.

  C. Line 16 of file2.py is auth=HTTPBasicAuth(USERNAME, PASSWORD).

  D. Line 17 of file2.py is auth = HTTPBasicAuth(USERNAME, PASSWORD).

  Correct Answer: D

• Question 75:

  What is the reason for an HTTP 404 code returned from a REST API request?

  A. The requested URL exists, but the HTTP method is not applicable.

  B. The requested resource is not found.

  C. The request was missing or had an invalid authentication token.

  D. The request was successful, but nothing is in the response body.

  Correct Answer: B

• Question 76:

  Which HTTP method is used by webhooks and notifies a listener about an event change?

  A. PUT

  B. POST

  C. PATCH

  D. GET

  Correct Answer: B

• Question 77:

  A developer completed the creation of a script using Git. Before delivering it to the customer, the developer wants to be sure about all untracked files, without losing any information. Which command gathers this information?

  A. git clean -n

  B. git rm -f

  C. git clean -r

  D. git rm *

  Correct Answer: A

  The -n option will perform a "dry run" of git clean. This will show you which files are going to be removed without actually removing them. It is a best practice to always first perform a dry run of git clean.

• Question 78:

  A company deploys an application via containers in its local data center. As soon as the application goes into production, it starts to crash at specific hours of the day. After investigation, it is concluded that the crashes are due to too many users accessing the application simultaneously. The spikes must be addressed and allow for future growth without discarding the investment already made. Which deployment model must be used?

  A. hybrid cloud

  B. edge

  C. private cloud

  D. public cloud

  Correct Answer: A

  A hybrid configuration is excellent for keeping latency or security-sensitive applications close to home while accessing cloud-based resources as an extension of your infrastructure. A hybrid model also allows for the rapid deployment and deprecating of temporary equipment, eliminating the need to over-provision purchases to support business peaks.

  https://www.networkworld.com/article/3599213/what-are-data-centers-how-they-work-and-how-they-are-changing-in-size-and-scope.html

• Question 79:

  Which TCP port is used to connect to a network device by using Telnet?

  A. 23

  B. 69

  C. 400

  D. 830

  Correct Answer: A

• Question 80:

  Refer to the exhibit.

  

  Which action does the script perform?

  A. It queries user credentials from Cisco IOS XE devices.

  B. It retrieves device identification from Cisco DNA Center.

  C. It exports SSID information from Meraki dashboard.

  D. It collects group information from ACI.

  Correct Answer: D

  Tenants is related to cisco ACI:

  "Atenant is a logical container for application policies that enable an administrator to exercise domain-based access control. A tenant represents a unit of isolation from a policy perspective, but it does not represent a private network. Tenants

  can represent a customer in a service provider setting, an organization or domain in an enterprise setting, or just a convenient grouping of policies."

  https://www.cisco.com/c/en/us/td/docs/dcn/mso/3x/configuration/cisco-multi-site-configuration-guide-aci-331/mso-configuration-aci-managing-tenants-33x.pdf