This JNCIA-JUNOS practice question tests your understanding of user interfaces. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A network engineer is in configuration mode and wants to see the configuration in a format that can be directly pasted into another router to reproduce the configuration. Which output modifier should they use?
| display inheritance
Why wrong: Shows inherited values, not a set of commands.
| display set
Produces 'set' commands that can be directly pasted into another Junos device.
| display xml
Why wrong: Shows XML, not directly pasteable as CLI commands.
| count
Why wrong: Counts lines, not useful for reproduction.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
| display set
The '| display set' output modifier converts the current Junos configuration into a series of 'set' commands. This format is directly pasteable into another router's CLI to reproduce the exact configuration, making it ideal for configuration migration or backup restoration.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
| display inheritance
Why it's wrong here
Shows inherited values, not a set of commands.
| display set
Why this is correct
Produces 'set' commands that can be directly pasted into another Junos device.
Related concept
Read the scenario before looking for a memorised answer.
| display xml
Why it's wrong here
Shows XML, not directly pasteable as CLI commands.
| count
Why it's wrong here
Counts lines, not useful for reproduction.
Common exam traps
The trap here is that candidates familiar with Cisco IOS often expect 'show running-config' to output pasteable commands, but Junos requires the explicit '| display set' modifier to achieve the same effect, leading them to choose '| display xml' or '| display inheritance' due to unfamiliarity with Junos output modifiers.
Trap categories for this question
Command / output trap
Shows inherited values, not a set of commands.
Detailed technical explanation
The 'display set' modifier works by flattening the hierarchical configuration into individual 'set' statements, each representing a single configuration element. This is particularly useful when comparing configurations between devices using 'diff' or when applying configurations via scripts, as 'set' commands are idempotent and can be safely merged with existing configurations. Under the hood, Junos processes these commands through the same commit engine as interactive configuration, ensuring consistency.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the JNCIA-JUNOS exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
User Interfaces — This question tests User Interfaces — Read the scenario before looking for a memorised answer..
The correct answer is: | display set — The '| display set' output modifier converts the current Junos configuration into a series of 'set' commands. This format is directly pasteable into another router's CLI to reproduce the exact configuration, making it ideal for configuration migration or backup restoration.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This JNCIA-JUNOS 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 JNCIA-JUNOS exam.
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