Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 321:

  Which two statements about JSON and XML are true? (Choose two.)

  A. The syntax of JSON contains tags, elements, and attributes.

  B. XML objects are collections of key-value pairs.

  C. JSON objects are collections of key-value pairs.

  D. JSON arrays are an unordered set of key-value pairs.

  E. The syntax of XML contains tags, elements, and attributes.

  Correct Answer: CE

• Question 322:

  What is the purpose of a MAC address?

  A. to uniquely identify a switch in a LAN

  B. to uniquely identify a router in a LAN

  C. to uniquely identify a network interface in a LAN

  D. to uniquely identify a device on the Internet

  Correct Answer: C

• Question 323:

  Which two NETCONF operations cover the RESTCONF GET operation? (Choose two.)

  A.

  B.

  C.

  D.

  E.

  Correct Answer: AB

  Reference: https://www.cisco.com/c/en/us/support/docs/storage-networking/management/200933-YANG-NETCONF-Configuration-Validation.html

• Question 324:

  What is the purpose of the Cisco VIRL software tool?

  A. to verify configurations against compliance standards

  B. to automate API workflows

  C. to simulate and model networks

  D. to test performance of an application

  Correct Answer: C

  Reference: https://www.speaknetworks.com/cisco-virl-better-gns3/

• Question 325:

  Which CI/CD tool is an automation tool used to build, test, and deploy software?

  A. Git

  B. Gradle

  C. Nagios

  D. Jenkins

  Correct Answer: D

  Reference: https://www.infoworld.com/article/3271126/what-is-cicd-continuous-integration-and-continuous-delivery-explained.html

• Question 326:

  Refer to the exhibit.

  

  The definition of the YANG module and a RESTCONF query sent to a Cisco IOS XE device is shown. Which statement is correct if the RESTCONF interface responds with a 204 status code?

  A. The query retrieved the logging severity level.

  B. The query updated the logging severity level or created it if not present on the device.

  C. The query failed at retrieving the logging severity level.

  D. The query failed to set the logging severity level due to an invalid path.

  Correct Answer: B

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/1611/ b_1611_programmability_cg/restconf_programmable_interface.html

• Question 327:

  Which two types of NAT are used in a network? (Choose two.)

  A. routed NAT

  B. static NAT

  C. multicast NAT

  D. normal NAT

  E. dynamic NAT

  Correct Answer: BE

  Reference: https://www.dummies.com/programming/networking/cisco/types-of-network-address-translation/

• Question 328:

  Refer to the exhibit.

  

  What is represented in this YANG module?

  A. interface management

  B. BGP

  C. OpenFlow

  D. topology

  Correct Answer: A

  Reference: https://github.com/CiscoDevNet/dnav3-code/blob/master/intro-mdp/yang/models/Cisco-IOS-XE-interfaces-oper.yang

• Question 329:

  A developer is reviewing a code that was written by a colleague. It runs fine, but there are many lines of code to do a seemingly simple task repeatedly. Which action organizes the code?

  A. Refactor the code by removing any unnecessary tests.

  B. Reverse engineer and rewrite the code logic.

  C. Using functions, rewrite any pieces of code that are repeated.

  D. Modify the code to use loops.

  Correct Answer: C

  Functions are used to avoid repetitions

• Question 330:

  Which model-driven programmability protocol does Cisco IOS XE Software support?

  A. gNMI

  B. SOAP

  C. SSH

  D. CORBA

  Correct Answer: A

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/1610/ b_1610_programmability_cg/gnmi_protocol.html