NSE7 Enterprise Firewall and VDOMs Practice Question
An administrator runs 'diagnose debug application fnbam 3' and sees many entries with state 'sctp'. The FortiGate has flow-based inspection enabled. What is being indicated?
⚠ Common exam trap
The trap here is that candidates see 'sctp' and immediately think of the Stream Control Transmission Protocol (SCTP) rather than recognizing it as a FortiGate-specific acronym for 'Session Control Traffic Path' in the NPU offload context.
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
✓
Traffic is being fast-forwarded without security profile inspection
The 'diagnose debug application fnbam 3' command shows the FortiGate's flow-based Network Processor (NPU) session offload status. When entries show state 'sctp', it indicates that the traffic is being handled by the SCTP (Session Control Traffic Path) fast-path, meaning the session is offloaded to the NPU for hardware acceleration and bypasses security profile inspection. This is normal for flow-based inspection when traffic matches fast-path criteria, not an indication of SCTP protocol inspection or attacks.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Traffic is being fast-forwarded without security profile inspection
Why this is correct
fnbam entries with 'sctp' indicate sessions that bypass full scanning.
- ✗
The FortiGate is performing SCTP deep inspection
Why it's wrong here
SCTP deep inspection is not shown by fnbam.
- ✗
The FortiGate is using proxy-based inspection
Why it's wrong here
Proxy-based inspection would not show fnbam entries.
- ✗
There is an SCTP-based attack in progress
Why it's wrong here
fnbam is not an attack detection tool.
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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.