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Automation and DevOps, Specialist (JNCIS-DevOps)

The Automation and DevOps Track track enables you to demonstrate competency in common scripting languages and tools for automating device and network functions. JNCIS-DevOps, the specialist-level certification in this track, is designed for networking professionals with intermediate knowledge of automation tools and best practices. The written exam verifies your understanding of the application of scripting tools such as PyEZ, Python, and Ansible to Junos devices and networks.

This track includes two certifications:

JNCIA-DevOps: Automation and DevOps, Associate. 
JNCIS-DevOps: Automation and DevOps, Specialist.

Exam Details

• Exam code: JN0-421
• Administered by Pearson VUE
• Exam length: 90 minutes
• Exam type: 65 multiple-choice questions
• Pass/fail status is available immediately
• Prerequisite Certification: JNCIA-DevOps
• Software Versions: Software Release: 18.3

Exam Objectives

• Platform Automation Overview
• NETCONF/XML API
• Data Serialization and Templating
• Python
• Stateful Configuration (Ansible/SALT)
• Junos Automation Scripts
• YANG/OpenConfig
• Juniper Extension Toolkit

View Online Automation and DevOps, Specialist (JNCIS-DevOps) JN0-421 Free Questions

1.Which two automation frameworks are agentless when managing Junos devices?
A. Chef
B. Ansible
C. Puppet
D. SaltStack
Answer: BD

2.With the inclusion of Python in the Junos OS, what is an advantage that this feature provides administrators?
A. The ability to compile Python scripts on the device.
B. The ability to execute Python scripts on the device.
C. It provides compatibility with all Python versions.
D. It provides the Python command line (REPL) for testing
Answer: B

3.What are two benefits of network automation? (Choose two )
A. to enforce consistency in automated devices
B. increase programming language fluency
C. to provide historical configuration management
D. to improve product lifecycle management
Answer: AD

4.Which command is used to execute an Ansible playbook?
A. ansible-vault
B. ansible
C. ansible-galaxy
D. ansible-playbook
Answer: D

5.What are two attributes of the jsd JET service process? (Choose two.)
A. It executes APIs from multiple sessions in parallel
B. It executes one API request per session.
C. It creates a separate thread to service JET application requests
D. It supports only one client session at a time
Answer: AC