The correct answer is that the output indicates one IKE SA and two IPsec SAs, which is normal for a single VPN tunnel. This is because IPsec establishes a single Phase 1 IKE SA for key management and authentication, while Phase 2 creates two unidirectional IPsec SAs—one for inbound and one for outbound traffic—to protect data flows. On the Fortinet NSE 7 Advanced Security NSE7 exam, this question tests your ability to interpret the `diagnose vpn ike stats` command and distinguish between normal behavior and misconfigurations; a common trap is assuming two IPsec SAs signal a duplicate tunnel or error. Remember, a single VPN tunnel always requires one IKE SA to negotiate two IPsec SAs for bidirectional traffic—think of it as one key (IKE) opening two doors (IPsec) for data to travel in and out.
NSE7 Advanced VPN and Zero Trust Practice Question
This NSE7 practice question tests your understanding of advanced vpn and zero trust. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The tunnel has one IKE SA and two IPsec SAs, which is normal for a single VPN tunnel.
The 'diagnose vpn ike stats' output shows one IKE SA (phase 1) and two IPsec SAs (phase 2). This is normal for a single VPN tunnel when using IPsec with both inbound and outbound SAs, or when the tunnel is configured with separate SAs for different traffic selectors. The presence of two IPsec SAs under one IKE SA does not indicate an error or vulnerability; it is the expected behavior for a standard IPsec VPN tunnel.
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 tunnel is vulnerable to a man-in-the-middle attack because the IPsec SAs are using the same encryption algorithm.
Why it's wrong here
Using the same algorithm is not a vulnerability; it is standard.
✗
The tunnel configuration is incorrect because there are two IPsec SAs under one IKE SA.
Why it's wrong here
This is normal behavior for a single tunnel.
✗
The tunnel is using two IKE SAs for redundancy.
Why it's wrong here
Only one IKE SA is listed.
✓
The tunnel has one IKE SA and two IPsec SAs, which is normal for a single VPN tunnel.
Why this is correct
A single tunnel uses two IPsec SAs (one for each direction) under one IKE SA.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may misinterpret the presence of two IPsec SAs as a redundancy or error, when in fact it is the normal and expected result of IPsec's directional SA model.
Detailed technical explanation
How to think about this question
In IPsec, an IKE SA (phase 1) establishes a secure channel for key exchange, while IPsec SAs (phase 2) are created for actual data encryption and authentication. The 'diagnose vpn ike stats' command lists the IKE SA and its associated IPsec SAs; two IPsec SAs are typical because each direction (inbound and outbound) requires its own SA, or because multiple traffic selectors (e.g., different subnets) each get their own SA. This behavior is defined in RFC 4301 and is not a sign of misconfiguration.
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.
Advanced VPN and Zero Trust — This question tests Advanced VPN and Zero Trust — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The tunnel has one IKE SA and two IPsec SAs, which is normal for a single VPN tunnel. — The 'diagnose vpn ike stats' output shows one IKE SA (phase 1) and two IPsec SAs (phase 2). This is normal for a single VPN tunnel when using IPsec with both inbound and outbound SAs, or when the tunnel is configured with separate SAs for different traffic selectors. The presence of two IPsec SAs under one IKE SA does not indicate an error or vulnerability; it is the expected behavior for a standard IPsec VPN tunnel.
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.
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 →
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.
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.