In 2026, classroom training is feasible but rarely fits an office worker's calendar. With 66 practice questions from GuideTorrent for the JN0-421 exam, the Juniper Automation and DevOps, Specialist (JNCIS-DevOps) study plan bends around your schedule instead of the other way around.
Juniper JN0-421 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Serialization and Templating | - Serialization Formats and Templates
|
| Platform Automation Overview | - Junos Platform Automation Concepts
|
| NETCONF and XML API | - Automation Access Methods
|
| YANG and OpenConfig | - Data Modeling and Open Standards
|
| Python Automation | - Python Tools for Junos Automation
|
| Junos Automation Scripts | - Automation Script Concepts
|
| Automation Frameworks | - Salt for Junos Automation
|
Frequently Asked Questions About JN0-421 Preparation
Valid JNCIA-DevOps certification is required.
The JN0-421 exam contains 65 questions and lasts 90 minutes minutes, so pacing matters as much as knowledge. Practicing under a real timer on GuideTorrent helps you learn how long to spend on each item.
The Juniper Automation and DevOps, Specialist (JNCIS-DevOps) material is written by a group of IT experts and certified trainers. Beyond assembling verified questions, they organize the bank into a study strategy for candidates, so you always know which section to tackle next instead of paging through questions at random.
The online engine recreates the atmosphere of the formal test, so the real JN0-421 exam feels familiar rather than intimidating. It runs on Windows, Mac, Android, and iOS, places no limit on the number of installations, and lets you review at any time and from any location, which fits naturally around an IT worker's schedule.
This package includes 66 practice questions for the JN0-421 exam. Every answer has been verified by our IT experts and certified trainers before release.
- Automation Frameworks ()
- Platform Automation Overview ()
- NETCONF and XML API ()
Study the sections in the order that matches your weakest areas first.
Juniper Automation and DevOps, Specialist (JNCIS-DevOps) Sample Questions:
What is the purpose of an __init__.py file?
- A. An __init__.py file initializes a Python application with default values for instantiated objects
- B. An __init__.py file indicates to the Python interpreter that a directory contains Python packages or modules
- C. An __init__.py file contains strings for additional directories that the Python interpreter adds to sys.path
[] - D. __init__.py file sets all magic attributes with the __init__.prefix with the appropriate default values
Correct Answer: B 🗳️
Click the Exhibit button.
Exhibit:
You need to programmatically extract interface information using PyEZ from your MX Series device. You log in and use the show interfaces terse | display xml rpc command and see the information shown in the exhibit.
What is the correct PyEZ syntax to accomplish this task?
- A. dev.rpc.get-interface-information()
- B. dev.rpc.get_interface_information(terse=True)
- C. dev.rpc.get_interface_information()
- D. dev.rpc.get-interface-information(terse=True)
Correct Answer: B 🗳️
Your organization is creating a custom YANG module. You are asked to create a leaf node called timeout with a data type of duration.
In this scenario, what is the appropriate syntax for this leaf node?
- A. Option D
- B. Option A
- C. Option C
- D. Option B
Correct Answer: A 🗳️
Using the RESTful API on a Junos device, you are able to retrieve configuration information in which three formats? (Choose three)
- A. GPB
- B. JSON
- C. YAML
- D. XML
- E. plain text
Correct Answer: B,D,E 🗳️
Click the Exhibit button.
Exhibit:
Ansible playbook:
The r0 device is currently in a factory-default state. The console connection of r0 is reachable using Telnet on TCP port 555 of the console_server host.
Referring to the exhibit, which statement is true?
- A. The device does not require configuration changes for the playbook to run successfully
- B. The NETCONF service must be configured for the playbook to run successfully
- C. A password for the root user must be configured for the playbook to run successfully
- D. The Telnet service must be configured for the playbook to run successfully
Correct Answer: B 🗳️
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