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 about the 'commit confirmed' command? (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 default timeout is 10 minutes.
Option B is correct because the default timeout for the 'commit confirmed' command in Junos is 10 minutes. If no confirmation commit is issued within that period, the system automatically rolls back to the previous configuration, ensuring network stability during remote changes.
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.
✗
It is used to schedule a commit at a future time.
Why it's wrong here
That is 'commit at', not 'commit confirmed'.
✓
The default timeout is 10 minutes.
Why this is correct
The default timeout is 10 minutes if not specified.
Related concept
Read the scenario before looking for a memorised answer.
✗
It saves the configuration to a file before applying.
Why it's wrong here
Commit confirmed does not save to a file; it just sets a rollback timer.
✗
The timeout can be set only in multiples of 5 minutes.
Why it's wrong here
The timeout can be any integer from 1 to 65535.
✓
It requires a confirmation within the specified time to make the commit permanent.
Why this is correct
If not confirmed, the configuration rolls back.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing 'commit confirmed' with 'commit at' (scheduling) or assuming the timeout is restricted to 5-minute increments, when in fact it accepts any integer minute value.
Detailed technical explanation
How to think about this question
The 'commit confirmed' command works by immediately applying the candidate configuration and starting a rollback timer. If the administrator does not issue a 'commit' (or 'commit check' followed by 'commit') within the timeout period, Junos automatically reverts to the previously active configuration. This is critical during remote maintenance to prevent lockout due to a misconfiguration, and the timer can be adjusted per session using the 'commit confirmed <minutes>' syntax.
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 default timeout is 10 minutes. — Option B is correct because the default timeout for the 'commit confirmed' command in Junos is 10 minutes. If no confirmation commit is issued within that period, the system automatically rolls back to the previous configuration, ensuring network stability during remote changes.
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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