JN0-221 Online Practice Questions and Answers

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

Which two Python packages use NETCONF to interact with Junos devices? (Choose two.)

A. numpy

B. jsnapy

C. junos-eznc

D. pyyaml

What are two examples of XPath axes? (Choose two.)

A. grandchild

B. sibling

C. parent

D. grandparent

Which Ansible Playbook play parameter will prevent the system from copying the playbook to the Junos devices?

A. serial

B. gather_facts

C. environment

D. connection

Click the Exhibit button.

Referring to the exhibit, where would the junos.conf file be found?

A. a directory on juniper_junos_config

B. a directory located on R1

C. a local directory on the Ansible control machine

D. a directory on the device list in inventory_hostname

Which two statements about Ansible are correct? (Choose two.)

A. All Ansible host and group variables must be defined in the /etc/ansible/hosts directory

B. Groups can be nested and a device is allowed to participate in multiple groups

C. Separate host and group variable files can be used for larger environments

D. Groups cannot be nested and a device is allowed to participate only a single group

Which API does the Junos CLI use to modify the configuration database?

A. REST API

B. XML API

C. JET API

D. RPC API

Click the Exhibit button.

Referring to the exhibit, which two statements about the script are correct? (Choose two.)

A. The script prints interface information for each interface name

B. The script prints the name of each configured interface

C. The script retrieves the interface configuration in JSON

D. The script retrieves the interface configuration in XML

Which statement about using Ansible with a Junos device is correct?

A. Ansible modules are executed on the control server

B. SFTP must be used to allow communication between the Ansible control server and the Junos device

C. An Ansible agent must be installed and running on the Junos device

D. An Ansible playbook is a set of tasks written in XML

What are two components of the Waterfall model of software development? (Choose two.)

A. a large volume of code changes between releases

B. a small volume of code changes between releases

C. a short interval of time between releases

D. a long interval of time between releases