JN0-106 Junos OS Fundamentals Practice Question
Which command saves the current operational state information to a file that can be provided to Juniper support for troubleshooting?
⚠ Common exam trap
It's easy for candidates to confuse 'show system information' with a support data collection tool, not realizing it only displays a brief summary and does not generate a comprehensive, saveable file for support.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
request support information
The 'request support information' command collects a comprehensive snapshot of the current operational state, including configuration, logs, routing tables, and interface statistics, and packages it into a file (e.g., /var/tmp/support-info-date-time.tgz) that can be directly provided to Juniper support for troubleshooting. This is the standard Junos method for gathering diagnostic data.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
request support information
Why this is correct
request support information invokes a Junos operational-mode script that bundles the configuration, routing tables, interface statistics, logs, and core dumps into a timestamped archive (e.g., juniper.support.tgz) under /var/tmp. It is the automated equivalent of a full 'tech-support' bundle for JTAC analysis and is the only option here that automatically captures and persists operational state to a file.
- ✗
monitor traffic
Why it's wrong here
monitor traffic does not interact with saved state; instead, it initiates a live libpcap-based packet capture on a specified interface or protocol, decoding packets in real time until interrupted. It is designed for data-plane debugging and never writes a support archive to disk, so it cannot save the operational state of the system.
- ✗
show system information
Why it's wrong here
show system information displays a one-shot inventory summary that includes the hostname, model, Junos version, uptime, and build information, outputting it only to the terminal. It is a single show command, not an automated collection routine, and unless the user manually pipes the output to '| save' it does not create any file. Even when redirected, it captures only that command's output, not the full operational snapshot that request support information gathers.
- ✗
file copy
Why it's wrong here
file copy is the Junos file-management utility for moving existing files over FTP, SCP, HTTP, or local paths; it simply duplicates files from one location to another. It generates no diagnostic data and cannot capture operational state. In a troubleshooting workflow, file copy would typically be used to transfer a support bundle off the device after request support information creates it, but it is not the command that creates that bundle.
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About these practice questions
Courseiva writes every JN0-106 question from scratch — 326 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This JN0-106 practice question is part of Courseiva's free Juniper Networks certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the JN0-106 exam.