- A
The gateway will automatically create new phase2 selectors for any remote subnet
Why wrong: Auto-discovery is not about automatic phase2 selectors; it is a feature of ADVPN to enable dynamic shortcut tunnels.
- B
The gateway is acting as an ADVPN hub and will advertise routes to spokes for shortcut tunnel creation
When auto-discovery is enabled on a gateway, it can act as an ADVPN hub, sending route information to spokes to allow direct spoke-to-spoke tunnels.
- C
The gateway will automatically renegotiate IKEv2 keys before expiration
Why wrong: Key renegotiation is controlled by the 'rekey' timer, not the auto-discovery setting.
- D
The gateway will discover other VPN gateways on the same network and form peer relationships
Why wrong: Auto-discovery in FortiGate VPN is specifically for ADVPN shortcut tunnels, not for discovering new peers automatically.
Quick Answer
The answer is that the gateway is acting as an ADVPN hub and will advertise routes to spokes for shortcut tunnel creation. This is correct because when auto-discovery is enabled on an IKE gateway in FortiOS, it instructs the hub to send shortcut route advertisements to its spokes, allowing those spokes to learn each other’s public IP addresses and establish direct tunnels without traversing the hub. On the Fortinet NSE 7 Advanced Security NSE7 exam, this output tests your ability to interpret real-world diagnostic commands and distinguish between a hub and a spoke in an ADVPN topology—a common trap is confusing this with a simple dynamic VPN or assuming auto-discovery only applies to spokes. Remember the key distinction: the hub enables auto-discovery to facilitate shortcut creation, while spokes receive those advertisements to initiate the shortcuts. A useful memory tip is “Hub advertises, Spoke shortcuts”—if you see auto-discovery enabled on the hub’s gateway list, think of it as the hub broadcasting the invitation for direct spoke-to-spoke tunnels.
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.
You run 'diagnose vpn ike gateway list' and see the following: gateway name: HUB_GW version: IKEv2 state: UP mode: main local: 10.0.0.1:500 remote: 203.0.113.5:500 auth: psk dpd: on rekey: 86400 num_peers: 2 total_tunnels: 2 auto-discovery: enabled What does the 'auto-discovery: enabled' indicate about this VPN gateway?
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 gateway is acting as an ADVPN hub and will advertise routes to spokes for shortcut tunnel creation
In an ADVPN setup, enabling auto-discovery on the hub allows it to send shortcut route advertisements to spokes, which then can establish direct tunnels. The output confirms the gateway is configured to participate in ADVPN as a hub or as a spoke that can initiate shortcuts.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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 gateway will automatically create new phase2 selectors for any remote subnet
Why it's wrong here
Auto-discovery is not about automatic phase2 selectors; it is a feature of ADVPN to enable dynamic shortcut tunnels.
- ✓
The gateway is acting as an ADVPN hub and will advertise routes to spokes for shortcut tunnel creation
- ✗
The gateway will automatically renegotiate IKEv2 keys before expiration
Why it's wrong here
Key renegotiation is controlled by the 'rekey' timer, not the auto-discovery setting.
- ✗
The gateway will discover other VPN gateways on the same network and form peer relationships
Why it's wrong here
Auto-discovery in FortiGate VPN is specifically for ADVPN shortcut tunnels, not for discovering new peers automatically.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related NSE7 subnetting questions on CIDR, address ranges, and subnet selection.
- →
Advanced VPN and Zero Trust — study guide chapter
Learn the concepts, then practise the questions
- →
Advanced VPN and Zero Trust 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
Related NSE7 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Advanced Networking and SD-WAN practice questions
Practise NSE7 questions linked to Advanced Networking and SD-WAN.
Advanced VPN and Zero Trust practice questions
Practise NSE7 questions linked to Advanced VPN and Zero Trust.
Enterprise Firewall and VDOMs practice questions
Practise NSE7 questions linked to Enterprise Firewall and VDOMs.
Advanced Threat Protection practice questions
Practise NSE7 questions linked to Advanced Threat Protection.
Troubleshooting and Diagnostics practice questions
Practise NSE7 questions linked to Troubleshooting and Diagnostics.
NSE7 fundamentals practice questions
Practise NSE7 questions linked to NSE7 fundamentals.
NSE7 scenario practice questions
Practise NSE7 questions linked to NSE7 scenario.
NSE7 troubleshooting practice questions
Practise NSE7 questions linked to NSE7 troubleshooting.
Practice this exam
Start a free NSE7 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this NSE7 question test?
Advanced VPN and Zero Trust — This question tests Advanced VPN and Zero Trust — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: The gateway is acting as an ADVPN hub and will advertise routes to spokes for shortcut tunnel creation — In an ADVPN setup, enabling auto-discovery on the hub allows it to send shortcut route advertisements to spokes, which then can establish direct tunnels. The output confirms the gateway is configured to participate in ADVPN as a hub or as a spoke that can initiate shortcuts.
What should I do if I get this NSE7 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related NSE7 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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 21, 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.