Quick Answer
The answer is the Data Leak Prevention (DLP) profile. This is correct because a DLP profile is specifically designed to inspect file content for sensitive data patterns, such as credit card numbers, and can enforce actions like blocking uploads when those patterns are detected via web forms. On the Fortinet NSE 4 Network Security Professional NSE4 exam, this question tests your understanding of which security profile handles content inspection for data loss, distinguishing it from profiles like Web Filter or Application Control, which focus on categories or signatures rather than content scanning. A common trap is confusing DLP with the Web Filter profile, but remember that only DLP performs deep content analysis for sensitive data like credit card numbers. Memory tip: DLP stands for “Don’t Leak Payment” data—think of it as the guard that reads the fine print before letting files through.
This NSE4 practice question tests your understanding of security profiles. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
An administrator wants to block upload of files containing credit card numbers via web forms. Which security profile should be used?
Antivirus profile
Why wrong: Antivirus looks for malware, not credit card numbers.
Web filter profile
Why wrong: Web filter blocks URLs/categories, not content within forms.
Application control profile
Why wrong: Application control manages apps, not content inspection.
Data leak prevention (DLP) profile
DLP is designed to detect and prevent data loss.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Data leak prevention (DLP) profile
Option A is correct: DLP (Data Leak Prevention) profile can inspect content for sensitive data patterns like credit card numbers and block uploads.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Antivirus profile
Why it's wrong here
Antivirus looks for malware, not credit card numbers.
Web filter profile
Why it's wrong here
Web filter blocks URLs/categories, not content within forms.
Application control profile
Why it's wrong here
Application control manages apps, not content inspection.
Data leak prevention (DLP) profile
Why this is correct
DLP is designed to detect and prevent data loss.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
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
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related NSE4 NAT questions on configuration and troubleshooting.
Security Profiles — study guide chapter
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FAQ
Security Profiles — This question tests Security Profiles — Static NAT maps one inside address to one outside address..
The correct answer is: Data leak prevention (DLP) profile — Option A is correct: DLP (Data Leak Prevention) profile can inspect content for sensitive data patterns like credit card numbers and block uploads.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related NSE4 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. An administrator needs to block users from uploading files containing credit card numbers to external websites. Which TWO actions must be configured? (Choose two.)
mediumWhy B: Option B is correct because SSL deep inspection is required to decrypt HTTPS traffic so the firewall can inspect the content of encrypted uploads for sensitive data like credit card numbers. Without decryption, the DLP profile cannot see the payload of encrypted sessions, rendering the DLP sensor ineffective.
Last reviewed: Jun 21, 2026
This NSE4 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 NSE4 exam.
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