NSE7 Advanced Threat Protection Practice Question
A FortiGate administrator notices that traffic classified as 'unknown' by the antivirus is being allowed. The administrator wants to ensure that such files are submitted to FortiSandbox for analysis and blocked until a verdict is received. Which configuration is required?
⚠ Common exam trap
Many candidates confuse 'Action for unknown files' with 'Action for known files' or mistakenly think that outbreak prevention (which uses FortiGuard outbreak signatures) is sufficient to block unknown files, when in fact only the sandbox integration with the 'Block' action provides the required submission and blocking behavior.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable FortiSandbox in the antivirus profile and set 'Action for unknown files' to 'Block'
When FortiSandbox is enabled in the antivirus profile and 'Action for unknown files' is set to 'Block', the FortiGate will submit files that cannot be identified by the local antivirus engine to FortiSandbox for analysis. While the file is being analyzed, it is blocked from reaching the client, ensuring that no potentially malicious content is delivered until a verdict (clean or malicious) is received. This directly addresses the administrator's requirement to block unknown files pending sandbox analysis.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a custom IPS signature for unknown files
Why it's wrong here
IPS does not handle file submission to FortiSandbox.
- ✓
Enable FortiSandbox in the antivirus profile and set 'Action for unknown files' to 'Block'
Why this is correct
This configuration submits unknown files to FortiSandbox and blocks them until a verdict is returned.
- ✗
Enable outbreak prevention in the antivirus profile
Why it's wrong here
Outbreak prevention uses machine learning but does not submit to FortiSandbox.
- ✗
Enable FortiSandbox in the antivirus profile and set 'Action for known files' to 'Block'
Why it's wrong here
That blocks known malicious files, not unknown.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This NSE7 practice question is part of Courseiva's free Fortinet 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 NSE7 exam.