NSE7 Enterprise Firewall and VDOMs Practice Question
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.
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?
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.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Related concept
Read the scenario before looking for a memorised answer.
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.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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.
Detailed technical explanation
How to think about this question
In FortiGate, `diagnose sys session filter dport 443` filters sessions by destination port 443, and the output shows session details including protocol number (6 for TCP), TCP state (01 for ESTABLISHED), session duration in seconds, and session expiry timeout in seconds. The session timeout is dynamically calculated based on the protocol and state; for an established TCP session, the default timeout is typically 3600 seconds (1 hour) unless modified by firewall policies or application-layer inspection. This command is critical for troubleshooting connectivity issues, as it reveals whether a session is still active or has been prematurely aged out.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Enterprise Firewall and VDOMs — This question tests Enterprise Firewall and VDOMs — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: 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.
What should I do if I get this NSE7 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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