Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 51:

  Which statement describes the benefit of using functions in programming?

  A. Functions ensure that a developer understands the inner logic contained before using them as part of a script or application.

  B. Functions create the implementation of secret and encrypted algorithms.

  C. Functions allow problems to be split into simpler, smaller groups, and reduce code repetition, which makes the code easier to read.

  D. Functions store mutable values within a script or application.

  Correct Answer: C

• Question 52:

  Which platform is run directly on top of a hypervisor?

  A. bare metal systems

  B. virtual machines

  C. containers

  D. applications

  Correct Answer: B

• Question 53:

  What are two advantages of version control software? (Choose two.)

  A. It supports tracking and comparison of changes in binary format files.

  B. It allows new team members to access the current code and history.

  C. It supports comparisons between revisions of source code files.

  D. It provides wiki collaboration software for documentation.

  E. It allows old versions of packaged applications to be hosted on the Internet.

  Correct Answer: BC

  Version control is a way to keep a track of the changes in the code so that if something goes wrong, we can make comparisons in different code versions and revert to any previous version that we want. It is very much required where multiple developers are continuously working on /changing the source code.

• Question 54:

  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 55:

  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 56:

  When a Cisco IOS XE networking device is configured using RESTCONF, what is the default data- encoding method?

  A. JSON

  B. YAML

  C. XML

  D. x-form-encoding

  Correct Answer: C

• Question 57:

  In DNS, which record specifies an alias that refers to another name that ultimately resolves to an IP address?

  A. CNAME

  B. NS

  C. AAA

  D. SOA

  Correct Answer: A

  Reference: https://ns1.com/resources/dns-types-records-servers-and-queries

• Question 58:

  Which two elements are foundational principles of DevOps? (Choose two.)

  A. organizing cross-functional teams over organizational silos

  B. designing applications as microservices

  C. encouraging containers for the deployment of applications

  D. automating over documenting

  E. optimizing the cost of infrastructures

  Correct Answer: AD

• Question 59:

  On which port does NETCONF operate by default?

  A. 23

  B. 443

  C. 822

  D. 830

  Correct Answer: D

• Question 60:

  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