This NSE7 practice question tests your understanding of enterprise firewall and vdoms. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 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?
The session is a TCP session that has been idle for 1 hour
Why wrong: The duration shows the age, not idle time.
The session is a UDP flow
Why wrong: Protocol 6 is TCP.
The session was established 1 hour ago and will expire in about 1 hour
Correct.
The session is in a half-open state
Why wrong: Proto_state '01' means established.
Answer choices
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` and `expire=3599`, meaning the session was established 3600 seconds (1 hour) ago and has 3599 seconds remaining before timeout. The `proto=6` indicates TCP (protocol 6), and `proto_state=01` corresponds to TCP state ESTABLISHED. Therefore, the session is active and will expire in about 1 hour from the current time, making option C correct.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
The session is a TCP session that has been idle for 1 hour
Why it's wrong here
The duration shows the age, not idle time.
The session is a UDP flow
Why it's wrong here
Protocol 6 is TCP.
The session was established 1 hour ago and will expire in about 1 hour
Why this is correct
Correct.
Related concept
Read the scenario before looking for a memorised answer.
The session is in a half-open state
Why it's wrong here
Proto_state '01' means established.
Common exam traps
The trap here is confusing `duration` (time since session started) with idle time, leading candidates to incorrectly assume the session has been idle for 1 hour instead of active for 1 hour.
Trap categories for this question
Command / output trap
The duration shows the age, not idle time.
Detailed technical explanation
In FortiGate's session table, `duration` tracks the elapsed time since session creation, while `expire` shows the remaining time before the session times out based on the protocol's idle timeout (e.g., TCP default 3600 seconds). The `proto_state` field uses a bitmask: 0x01 (ESTABLISHED), 0x02 (SYN_SENT), 0x04 (SYN_RECV), etc. Understanding these fields is critical for troubleshooting asymmetric routing or session timeouts in high-availability deployments.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the NSE7 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Enterprise Firewall and VDOMs — study guide chapter
Learn the concepts, then practise the questions
Enterprise Firewall and VDOMs practice questions
Targeted practice on this topic area only
All NSE7 questions
1,000 questions across all exam domains
Fortinet NSE 7 Advanced Security NSE7 study guide
Full concept coverage aligned to exam objectives
NSE7 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise NSE7 questions linked to Advanced Networking and SD-WAN.
Practise NSE7 questions linked to Advanced VPN and Zero Trust.
Practise NSE7 questions linked to Enterprise Firewall and VDOMs.
Practise NSE7 questions linked to Advanced Threat Protection.
Practise NSE7 questions linked to Troubleshooting and Diagnostics.
Practise NSE7 questions linked to NSE7 fundamentals.
Practise NSE7 questions linked to NSE7 scenario.
Practise NSE7 questions linked to NSE7 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Enterprise Firewall and VDOMs — This question tests Enterprise Firewall and VDOMs — Read the scenario before looking for a memorised answer..
The correct answer is: The session was established 1 hour ago and will expire in about 1 hour — The output shows `duration=3600` and `expire=3599`, meaning the session was established 3600 seconds (1 hour) ago and has 3599 seconds remaining before timeout. The `proto=6` indicates TCP (protocol 6), and `proto_state=01` corresponds to TCP state ESTABLISHED. Therefore, the session is active and will expire in about 1 hour from the current time, making option C correct.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 24, 2026
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.