The answer is that the 'request system snapshot' command creates a bootable recovery media containing a full copy of the current Junos OS and configuration, making it a valid tool for system restoration after failure. This command essentially clones the active software and settings onto a secondary storage device, such as a USB drive or compact flash, allowing the device to boot directly from that media if the primary storage becomes corrupted or unbootable. On the JNCIA-Junos exam, this topic tests your understanding of operational recovery procedures, often appearing in multiple-choice questions that ask which statements about the command are true. A common trap is confusing a snapshot with a simple backup file—unlike a configuration archive, a snapshot is a bootable, self-contained system image. For memory, think of it as a “system safety net”: the snapshot lets you snap back to a working state by booting from the recovery media, not just restoring a config file.
JNCIA-JUNOS Operational Monitoring and Maintenance Practice Question
This JNCIA-JUNOS practice question tests your understanding of operational monitoring and maintenance. 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 THREE statements about the 'request system snapshot' command are true? (Choose three.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It creates a recovery media for the device.
Option A is correct because the 'request system snapshot' command creates a bootable recovery media (e.g., USB or compact flash) that contains a copy of the current Junos OS and configuration. This allows the device to boot from that media in case of a system failure, effectively serving as a recovery tool.
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.
Read the scenario before looking for a memorised answer.
✗
It compresses the backup to save space.
Why it's wrong here
Incorrect: Snapshots do not compress files.
✓
It backs up the current Junos OS and configuration to alternate media.
Why this is correct
Correct: Snapshots are used for backup and recovery.
Related concept
Read the scenario before looking for a memorised answer.
✗
It copies the active partition to the alternate partition on the same media.
Why it's wrong here
Incorrect: That describes 'request system partition' or 'request system software add'.
✓
It can be used to restore the software and configuration in case of failure.
Why this is correct
Correct: Snapshots are used for restoration.
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 that candidates confuse 'request system snapshot' with 'request system snapshot partition', which copies the active partition to the alternate partition on the same media, not to external media.
Detailed technical explanation
How to think about this question
The 'request system snapshot' command uses the 'dump' utility to create a byte-for-byte copy of the active Junos root filesystem (typically /dev/da0s1a) to the specified media. This snapshot includes the kernel, software packages, and configuration files, and the target media must be formatted with a UFS filesystem. In a dual-root partition setup (e.g., junos-1 and junos-2), the command without the 'partition' option copies to external media, not to the alternate internal partition.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
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.
Operational Monitoring and Maintenance — This question tests Operational Monitoring and Maintenance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: It creates a recovery media for the device. — Option A is correct because the 'request system snapshot' command creates a bootable recovery media (e.g., USB or compact flash) that contains a copy of the current Junos OS and configuration. This allows the device to boot from that media in case of a system failure, effectively serving as a recovery tool.
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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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.
Question Discussion
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