Juniper Automation and DevOps JN0-221 Questions & Answers

• Question 51:

  What is a valid JSON object?

  A. "hostname:vmx-1"

  B. { "hostname": "vmx-1"}

  C. ["vmx-1:172.25.11.1"]

  D. {"vmx-1", "172.25.11.1"}

  Correct Answer: A

  Reference: https://www.juniper.net/documentation/en_US/day-one-books/DO_Automating_SALT.pdf (53)

• Question 52:

  As part of an application to manage network devices, you must query hundreds of network devices and return the unique set of IP prefixes blocked by configured firewall filters. To accomplish this task, you will require a mutable data type that contains unordered, unique elements.

  Which Python data type will fulfill these requirements?

  A. dictionaries

  B. lists

  C. tuples

  D. sets

  Correct Answer: C

  Reference: https://docs.python.org/2/library/sets.html

• Question 53:

  What are two popular methods of data serialization? (Choose two.)

  A. Python

  B. JSON

  C. SLAX

  D. YAML

  Correct Answer: AD

  Reference: https://docs.python-guide.org/scenarios/serialization/

• Question 54:

  Which two statements are correct about Junos PyEZ Tables and Views? (Choose two.)

  A. PyEZ Tables and Views are defined using YAML

  B. The juniper_junos_config module enables the use of PyEZ Tables and Views

  C. PyEZ Tables and Views are defined using CSV

  D. The juniper_junos_table module enables the use of PyEZ Tables and Views

  Correct Answer: AD

  Reference: https://www.juniper.net/documentation/en_US/junos-ansible/topics/topic-map/junos-ansibledata-retrieving-using-junos-pyez-tables.html

• Question 55:

  What is the default port for NETCONF connections over SSH?

  A. 22

  B. 830

  C. 443

  D. 8080

  Correct Answer: A

  Reference: https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/ port-edit-system-services-netconf.html#:~:text=The%20default%20SSH%20port%20(22,in%20the% 20login%20event%20script

• Question 56:

  Click the Exhibit button.

  

  Referring to the exhibit, which two code blocks are an equivalent representation in JSON? (Choose two.)

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: BD

• Question 57:

  Click the Exhibit button.

  

  Referring to the exhibit, which statement about the Ansible Playbook is correct?

  A. The Ansible Playbook will report a syntax error

  B. The Ansible Playbook execution will fail

  C. The Ansible Playbook will prompt for credentials

  D. The Ansible Playbook will execute successfully

  Correct Answer: C

• Question 58:

  Click the Exhibit button.

  

  Referring to the exhibit, this snippet of code would represent which type of data?

  A. JSON object

  B. JSON array

  C. YAML sequence

  D. YAML mapping

  Correct Answer: A

  Reference: https://www.juniper.net/documentation/en_US/junos-salt/topics/topic-map/junos-saltconfiguration-loading-commiting.html

• Question 59:

  Junos PyEZ is a microframework used to operate the Junos OS using which language?

  A. Puppet

  B. Chef

  C. Python

  D. Ruby

  Correct Answer: C

  Reference: https://www.juniper.net/documentation/en_US/junos-pyez/topics/concept/junos-pyezoverview.html#:~:text=Junos%20PyEZ%20is%20a%20microframework,operating%20system%20(Junos% 20OS).

• Question 60:

  Click the Exhibit button.

  

  Which command produces the output shown in the exhibit?

  A. user@router> show version | display xml

  B. user@router# show version | display xml

  C. user@router> show version | display json

  D. user@router> show version | display xml rpc

  Correct Answer: A

  Reference: https://www.juniper.net/documentation/en_US/junos/topics/task/operational/junos-xml-protocolrpcs-and-xml-mapping.html