JN0-223: Automation and DevOps, AssociateDemo

By Juniper · Browse Mode
About the Exam

This associate-level exam covered Junos automation and DevOps concepts for Juniper devices and solutions. It targeted networking professionals with introductory knowledge of automation tools and best practices, and passing demonstrated foundational competency with scripting, NETCONF/XML API, data serialization, Python/PyEZ, and Junos REST API topics. Juniper retired JN0-223 on February 16, 2025.

Exam Topics

  • Junos Automation Stack and DevOps Concepts20%
  • NETCONF/XML API20%
  • Data Serialization10%
  • Python/PyEZ20%
  • REST API20%

How to Use This Practice Exam

  1. Browse — Read each question, select your answer, and reveal the explanation.
  2. Exam Mode — Simulate real exam conditions with a timed session and score report.
  3. Learn Mode — Spaced repetition schedules questions you struggle with for long-term retention.

Download the Full Exam PDF

Get every question and answer in a clean, printable PDF built for offline study. Purchase once, keep permanent access, and re-download the latest version anytime.

Get PDF
Learn More

Last updated August 25, 2025 at 4:35 AM

Topic filter
Retired questions
Question sort

QuestionQ1

Data Serialization

Which two data structures are used by YAML?

Choose two
  • A arrays
  • B mappings
  • C sequences
  • D objects
Explanation

YAML represents collections as mappings for key-value pairs and sequences for ordered items.

Community Discussion

No comments yet. Be the first to start the discussion!

QuestionQ2

Junos Automation Stack and DevOps Concepts

Which type of on-box automation script is intended to run whenever a user performs a configuration change?

  • A event
  • B SNMP
  • C commit
  • D operation
Explanation

Junos OS invokes enabled commit scripts during each commit operation. They validate the candidate configuration and can generate warnings, errors, or configuration changes before the configuration becomes active.

Learn more

Community Discussion

No comments yet. Be the first to start the discussion!

QuestionQ3

Python/PyEZ

Which Junos configuration database does PyEZ update by default?

  • A shared
  • B dynamic
  • C private
  • D ephemeral
Explanation

Junos PyEZ updates the candidate global configuration by default, which Juniper also calls the shared configuration database. Private, dynamic, and ephemeral databases are selected only by explicitly setting a different configuration mode.

Learn more

Community Discussion

No comments yet. Be the first to start the discussion!

QuestionQ4

Python/PyEZ

What is the proper sequence for executing a Python script?

  • A The code is translated to byte code, the byte code is executed in runtime, and then the code is interpreted.
  • B The code is interpreted, the code is translated to byte code, and then the byte code is executed in runtime.C. The code is translated to byte code, the code is interpreted, and then the byte code is executed in runtime.
  • D The byte code is executed in runtime, the code is interpreted, and then the code is translated to byte code.
Explanation

Python source is translated into bytecode before the Python runtime interprets and executes that bytecode on the Python virtual machine. This makes the sequence that begins with bytecode translation and proceeds to interpretation and runtime execution correct.

Community Discussion

No comments yet. Be the first to start the discussion!

QuestionQ5

REST API

Using the set rest control configuration command, which two methods can control access to the REST API running on a Junos device?

Choose two
  • A Limit management access to only SSH.
  • B Limit management access to specific users.
  • C Limit the number of simultaneous connections.
  • D Limit access to only certain source IP addresses.
Explanation

The REST API control configuration supports allowed-sources to permit only specified source IP addresses and connection-limit to set the maximum number of simultaneous HTTP and HTTPS connections.

Learn more

Community Discussion

No comments yet. Be the first to start the discussion!

That's the end of the preview

It's free

100% of the questions are free for all users.
No strings attached.

Sign up freeLog in
Topics covered
Junos Automation Stack and DevOps ConceptsNETCONF/XML APIData SerializationPython/PyEZREST API
Know a question that should be here? Contribute to this exam
Back home