PDF Version DemoA Juniper certification remains one of the clearest career accelerators in IT. The Juniper Automation and DevOps, Specialist (JNCIS-DevOps) exam stands in the way, and the 66 practice questions at ActualPDF are the direct route through it.
Juniper JN0-421 Exam Overview:
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Juniper Automation and DevOps, Specialist (JNCIS-DevOps) |
| Exam Number: | JN0-421 |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Exam Format: | Scenario-based questions, Multiple response, Multiple choice |
| Exam Price: | $300 USD (may vary by region) |
| Available Languages: | English |
| Real Exam Qty: | 60-65 |
| Related Certifications: | JNCIA-DevOps JNCIS-DevOps |
| Recommended Training: | Juniper Networks Training (Automation & DevOps) |
| Exam Registration: | Pearson VUE Juniper Exams Juniper Certifications Registration |
| Sample Questions: |  |
| Exam Way: | Online proctored or in-person test center via Pearson VUE |
| Pre Condition: | No formal prerequisite, but Juniper recommends JNCIA-DevOps knowledge before attempting this exam. |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/certification-tracks/automation-and-devops-track.html |
Juniper JN0-421 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Scripting and Tooling | - Git and version control basics for automation workflows - Ansible automation with Junos devices - Python for network automation |
| Juniper Platforms and Junos Automation | - Junos OS automation features - Commit scripts and event scripts |
| CI/CD and Operational Automation | - Testing and validation of automation workflows - CI/CD pipelines in network automation |
| APIs and Data Formats | - REST APIs and Junos REST API - Data formats (JSON, XML, YAML) |
| Automation Fundamentals | - DevOps principles and workflows - Automation concepts and use cases in networking |
JN0-421 Exam FAQ: Before You Book Your Seat
Juniper Automation and DevOps, Specialist (JNCIS-DevOps) is an official Juniper Networks exam, listed under exam code JN0-421. A passing result earns you the Juniper Automation and DevOps, Specialist (JNCIS-DevOps) certification at the Specialist level. It also ties into JNCIA-DevOps, JNCIS-DevOps, extending its value across your certification roadmap. Employers read this credential as verified competence, which is why it keeps appearing in job requirements.
Expect 60-65 questions inside 90 minutes on the Juniper Automation and DevOps, Specialist (JNCIS-DevOps) exam. That pace punishes hesitation, so rehearse it: the ActualPDF software engine simulates the real exam scene, reminds you of the questions you got wrong, and pushes you to re-practice them until the clock stops being your enemy.
No formal prerequisite, but Juniper recommends JNCIA-DevOps knowledge before attempting this exam.
Requirements evolve, so confirm the current conditions before registering on the official exam page.
Registration for Juniper Automation and DevOps, Specialist (JNCIS-DevOps) goes through the official channels listed here.
When you schedule, note that the exam is delivered Online proctored or in-person test center via Pearson VUE.
Juniper Networks recommends the following training for Juniper Automation and DevOps, Specialist (JNCIS-DevOps) candidates.
Follow any course with the 66 practice questions in the ActualPDF JN0-421 package; the software engine will even remind you which mistakes need another round.
Yes. ActualPDF provides a free download demo of the Juniper Automation and DevOps, Specialist (JNCIS-DevOps) material, so you can check the content before choosing a version. After purchase, a one-year warranty covers you: the latest version is sent to you as it releases, free for 365 days, and after expiry you can extend the update service at a 50% discount.
Your purchase is covered by a 100% money-back guarantee with clear conditions. Take the Juniper Automation and DevOps, Specialist (JNCIS-DevOps) exam within 60 days of purchase; if you fail, provide your unqualified result by submitting a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and the full refund is processed within 7 days. The exam must match your product, candidate and payer names must match, and attempts within 3 days of purchase, unused downloads, free materials, and expired orders are not covered. Alternatively, exchange for two other exam products of equal value, free, or wait for updates while keeping your original product's update service.
Delivery is instant: files unlock for download at payment and are emailed within one minute. If nothing arrives within 2 hours, check spam and contact customer service, which works 7/24 and normally replies within two hours. Installation is unlimited across your computers.
The Juniper Automation and DevOps, Specialist (JNCIS-DevOps) syllabus spans 5 domains, led by Scripting and Tooling, Automation Fundamentals, and CI/CD and Operational Automation. The complete topic list is published above; candidates who study the map first rarely get lost later.
Juniper Automation and DevOps, Specialist (JNCIS-DevOps) Sample Questions:
What is the purpose of an __init__.py file?
- A. An __init__.py file contains strings for additional directories that the Python interpreter adds to sys.path
[] - B. __init__.py file sets all magic attributes with the __init__.prefix with the appropriate default values
- C. An __init__.py file indicates to the Python interpreter that a directory contains Python packages or modules
- D. An __init__.py file initializes a Python application with default values for instantiated objects
Correct Answer: C 🗳️
Click the Exhibit button.
Exhibit:
You are using RubyEZ to interact with a Junos device: however, you are not successfully connecting to the device.
Referring to the exhibit, what is the problem?
- A. Argument passed to Netconf:: SSH.new statement must be referenced as variables
- B. Netconf::SSH.new statement arguments must be hashes
- C. Netconf::SSH.new statement only expects an IP address of the target device
- D. A Junos::Ez::Provider statement is missing before the Netconf::SSH. New statement
Correct Answer: A 🗳️
By default, Python event scripts and SNMP scripts configured on a Junos device execute as which user?
- A. root
- B. wheel
- C. nobody
- D. snmpd
Correct Answer: C 🗳️
What are three supported languages for operational scripts on Junos devices? (Choose three)
- A. SLAX
- B. PHP
- C. Java
- D. XSLT
- E. Python
Correct Answer: A,D,E 🗳️
Explanation: Only visible for ActualPDF members. You can sign-up / login (it's free).
Which statement describes the purpose of Ansible roles?
- A. A collection of permissions for users of your Ansible setup
- B. A collection of Ansible playbooks
- C. A collection of tasks to be run on a given set of hosts
- D. A collection of hosts that have been categorized by purpose
Correct Answer: C 🗳️
