NSE7 Enterprise Firewall and VDOMs Practice Question
A network admin runs 'diagnose sys session filter dport 443' and sees the following output: proto=6 proto_state=01 duration=3600 expire=3599 What does this indicate?
⚠ Common exam trap
The trap here is that candidates often misinterpret `expire=3599` as the total session lifetime rather than the remaining time until expiry, leading them to incorrectly calculate the session's age or remaining duration.
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
✓
The session was established 1 hour ago and will expire in about 1 hour
The output shows `duration=3600`, meaning the session has been active for 3600 seconds (1 hour), and `expire=3599`, meaning the session will expire in 3599 seconds (approximately 1 hour). The `proto=6` indicates TCP (protocol 6), and `proto_state=01` corresponds to TCP state ESTABLISHED. Therefore, the session was established 1 hour ago and will expire in about 1 hour, making option A correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The session was established 1 hour ago and will expire in about 1 hour
Why this is correct
Duration=3600 seconds (1 hour), expire=3599 seconds (almost 1 hour remaining). Total session lifetime is about 2 hours.
- ✗
The session is using UDP port 443
Why it's wrong here
Proto=6 indicates TCP, not UDP.
- ✗
The session is for HTTP traffic and has 3599 seconds left
Why it's wrong here
Port 443 is HTTPS, not HTTP.
- ✗
The session is for HTTPS traffic and is halfway through its expected lifetime
Why it's wrong here
The duration and expire values are both high, not halfway.
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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.