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.
Which TWO statements are true regarding the Junos CLI? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The pipe (|) can be used to filter command output.
Option A is correct because the pipe (|) in the Junos CLI is used to filter command output, allowing you to apply modifiers like 'match', 'except', 'count', or 'display set' to refine the displayed information. This is a fundamental feature for efficiently managing large amounts of operational or configuration data.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
The pipe (|) can be used to filter command output.
Why this is correct
The pipe filters output.
Related concept
Read the scenario before looking for a memorised answer.
✗
The 'edit' command is used in operational mode to navigate the hierarchy.
Why it's wrong here
'edit' is used in configuration mode.
✗
The 'set' command is used in operational mode to set parameters.
Why it's wrong here
'set' is used in configuration mode.
✓
The 'commit' command applies the candidate configuration.
Why this is correct
'commit' applies changes.
Related concept
Read the scenario before looking for a memorised answer.
✗
The 'rollback 0' command discards the candidate configuration.
Why it's wrong here
'rollback 0' reverts to active config.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the use of 'edit', 'set', and 'rollback' commands between operational and configuration modes, mistakenly thinking they can be used interchangeably, when in fact they are strictly mode-specific.
Detailed technical explanation
How to think about this question
The Junos CLI operates in two primary modes: operational mode (for monitoring and troubleshooting) and configuration mode (for making changes). The pipe (|) supports powerful output filtering using regular expressions, such as 'show interfaces | match error' to quickly isolate error counters. Understanding the distinction between operational and configuration mode commands is critical, as misusing them can lead to syntax errors or unintended configuration changes.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
User Interfaces — This question tests User Interfaces — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The pipe (|) can be used to filter command output. — Option A is correct because the pipe (|) in the Junos CLI is used to filter command output, allowing you to apply modifiers like 'match', 'except', 'count', or 'display set' to refine the displayed information. This is a fundamental feature for efficiently managing large amounts of operational or configuration data.
What should I do if I get this JNCIA-JUNOS question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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