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 administrator wants to quickly review only the parts of the Junos configuration that differ from the factory defaults, to identify custom settings. Which command is most appropriate?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "which command"
Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
show configuration | no-more
Why wrong: Disables paging but still shows the full configuration.
show configuration
Why wrong: Shows the entire configuration, including default values.
show configuration | display omit
Correctly omits default configuration statements, showing only non-default settings.
show | compare
Why wrong: Compares the candidate configuration with the active configuration, not with defaults.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
show configuration | display omit
Option C is correct because the 'display omit' pipe modifier filters out configuration statements that match the factory-default values, showing only the lines that differ from the defaults. This allows the administrator to quickly review custom settings without manually comparing against a baseline.
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.
show configuration | no-more
Why it's wrong here
Disables paging but still shows the full configuration.
show configuration
Why it's wrong here
Shows the entire configuration, including default values.
show configuration | display omit
Why this is correct
Correctly omits default configuration statements, showing only non-default settings.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
show | compare
Why it's wrong here
Compares the candidate configuration with the active configuration, not with defaults.
Common exam traps
The trap here is that candidates often confuse 'display omit' with 'display set' or 'show | compare', mistakenly thinking that comparing candidate vs. active configuration is the same as filtering out factory defaults.
Trap categories for this question
Command / output trap
Disables paging but still shows the full configuration.
Detailed technical explanation
The 'display omit' pipe modifier works by comparing each configuration statement against the internal factory-default database stored in the Junos OS. When a statement matches the default value, it is suppressed from the output, leaving only non-default statements visible. This is particularly useful for auditing or troubleshooting, as it highlights only the administrator's customizations without needing to know the exact default values.
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
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
User Interfaces — study guide chapter
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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: show configuration | display omit — Option C is correct because the 'display omit' pipe modifier filters out configuration statements that match the factory-default values, showing only the lines that differ from the defaults. This allows the administrator to quickly review custom settings without manually comparing against a baseline.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
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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