Juniper Automation and DevOps JN0-220 Questions & Answers

• Question 21:

  PyEZ is an extension library for which programming tool?

  A. Ruby

  B. Puppet

  C. Chef

  D. Python

  Correct Answer: D

  Reference: https://github.com/Juniper/py-junos-eznc

• Question 22:

  Ansible code modules are typically written in which language?

  A. SLAX

  B. Python

  C. YAML

  D. XML

  Correct Answer: B

• Question 23:

  Given the username XML code, what is the entire string, including the opening and closing tags, called?

  A. element node

  B. name node

  C. text node

  D. data node

  Correct Answer: A

• Question 24:

  YAML was designed as a superset of which format?

  A. XML

  B. XSD

  C. Ansible D. JSON

  Correct Answer: D

  Reference: https://medium.com/@williamhayes/yaml-is-a-superset-of-json-it-is-explained-in-more-detailhere-1d758a069508

• Question 25:

  The REST API uses which two protocols for transport? (Choose two.)

  A. HTTPS

  B. HTTP

  C. TELNET

  D. SSH

  Correct Answer: AD

• Question 26:

  Which statement is correct about Python?

  A. The Python interpreter is written using the Visual Basic programming language

  B. Python strictly enforces the use of indentation and white space

  C. Python requires that you manually delete unused objects from memory

  D. Python behavior is influenced by the host OS

  Correct Answer: D

• Question 27:

  What is Python?

  A. Python is a product developed by Juniper to facilitate automation

  B. Python is the name of a switch that Juniper sells

  C. Python is the name of a router that Juniper sells

  D. Python is a programming language

  Correct Answer: D

• Question 28:

  Which statement is correct about automation?

  A. Automation increases the amount of time it takes to retrieve information from a large number of devices

  B. Automation reduces the costs of managing a large number of devices

  C. Automation increases the number of commands in the CLI

  D. Automation increases the amount of time needed to make changes to large numbers of devices

  Correct Answer: B

• Question 29:

  The REST API retrieves data from a connected device in which two formats? (Choose two.)

  A. XML

  B. YAML

  C. binary

  D. JSON

  Correct Answer: AD

  Reference: https://www.juniper.net/documentation/en_US/junos/information-products/pathway-pages/restapi/rest-api.pdf (13)

• Question 30:

  Which two statements are true for Network Reliability Engineering (NRE)? (Choose two.)

  A. NRE is a proactive process against network failures and monitors every meaningful performance indicator

  B. NRE focuses on customer satisfaction instead of service functionality

  C. NRE embraces failure and ensures that the same failure does not happen again

  D. NRE provides an understanding that the network is separate from its connected systems and applications

  Correct Answer: AC