The answer is that Policy ID 10 was manually added on the device but is not present in the policy package on FortiManager. This warning appears because FortiManager performs a strict synchronization during an install preview, comparing the policy package against the device’s current configuration; any policy found on the device that is missing from the package is flagged for deletion to enforce consistency. On the Fortinet NSE 7 Advanced Security NSE7 exam, this scenario tests your understanding of FortiManager’s centralized policy management and its default behavior of overwriting device-level changes. A common trap is assuming the warning indicates a conflict or error in the package itself, but the key is recognizing that the device has an orphaned policy not tracked by FortiManager. Memory tip: think of FortiManager as the “source of truth”—if it doesn’t know about a policy, it will delete it.
NSE7 Enterprise Firewall and VDOMs Practice Question
This NSE7 practice question tests your understanding of enterprise firewall and vdoms. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 company uses FortiManager to manage multiple FortiGate firewalls. After making changes to a policy package, the administrator runs an install preview and sees a warning: 'Policy ID 10 will be deleted on device XYZ'. What is the most likely reason for this warning?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Policy ID 10 was manually added on the device but is not present in the policy package
The warning 'Policy ID 10 will be deleted on device XYZ' indicates that the policy package on FortiManager does not contain Policy ID 10, but the device currently has it. During an install, FortiManager synchronizes the device's policy set with the policy package, so any policy present on the device but absent from the package is flagged for deletion. This is a standard consistency check to prevent unintended policy loss.
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.
✓
Policy ID 10 was manually added on the device but is not present in the policy package
Why this is correct
The install preview shows actions to align the device with the package.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The policy package has been corrupted and needs to be re-imported
Why it's wrong here
Corruption would produce different errors.
✗
The device is in a different ADOM and cannot use the same policy ID
Why it's wrong here
ADOMs are separate, but the warning is about deletion.
✗
A revision history conflict exists that prevents the install
Why it's wrong here
Revision history tracks changes but doesn't directly cause this warning.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume the warning indicates an error or conflict, when in fact it is a normal behavior of FortiManager's policy synchronization to remove policies that were manually added on the device outside of FortiManager management.
Detailed technical explanation
How to think about this question
FortiManager uses a 'policy package' as the authoritative source for device configuration. When an install preview is run, FortiManager compares the current device configuration against the policy package and generates a diff. If a policy exists on the device but not in the package, it is marked for deletion. This behavior is controlled by the 'install-policy' operation and can be overridden using 'policy consistency check' settings, but by default, FortiManager enforces strict synchronization.
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 NSE7 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.
Enterprise Firewall and VDOMs — This question tests Enterprise Firewall and VDOMs — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Policy ID 10 was manually added on the device but is not present in the policy package — The warning 'Policy ID 10 will be deleted on device XYZ' indicates that the policy package on FortiManager does not contain Policy ID 10, but the device currently has it. During an install, FortiManager synchronizes the device's policy set with the policy package, so any policy present on the device but absent from the package is flagged for deletion. This is a standard consistency check to prevent unintended policy loss.
What should I do if I get this NSE7 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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