NSE4 Security Profiles Practice Question
An administrator has configured DLP sensors to detect credit card numbers in outgoing traffic. However, the administrator notices that traffic containing credit card numbers is still passing through undetected. The firewall policy uses flow-based inspection. What is the MOST likely reason DLP is not detecting the data?
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
✓
DLP requires proxy-based inspection to perform data leakage detection.
DLP requires proxy-based inspection to buffer and analyze the content. Flow-based inspection does not support DLP.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
DLP requires proxy-based inspection to perform data leakage detection.
Why this is correct
DLP scanning requires proxy-based inspection because it needs to buffer the content for pattern matching.
- ✗
The DLP sensor is not applied to the correct firewall policy.
Why it's wrong here
Even if applied, flow-based inspection does not support DLP.
- ✗
The DLP sensor is configured with the wrong regular expression.
Why it's wrong here
Configuration might be correct, but flow mode cannot detect it.
- ✗
The credit card numbers are encrypted by SSL and deep inspection is not enabled.
Why it's wrong here
This could be a secondary issue, but the primary issue is inspection mode.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.