NSE7 Enterprise Firewall and VDOMs Practice Question
This NSE7 practice question tests your understanding of enterprise firewall and vdoms. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Exhibit
Refer to the exhibit.
config vdom
edit "VDOM1"
config system interface
edit "port1"
set vdom "VDOM1"
set ip 192.168.1.1 255.255.255.0
set allowaccess ping https
next
end
config router static
edit 1
set device "port1"
set gateway 192.168.1.254
next
end
end
config vdom
edit "VDOM2"
config system interface
edit "port2"
set vdom "VDOM2"
set ip 10.10.10.1 255.255.255.0
set allowaccess ping
next
end
config router static
edit 1
set device "port2"
set gateway 10.10.10.254
next
end
end
An administrator configures two VDOMs as shown in the exhibit. They create an inter-VDOM link between VDOM1 and VDOM2. They then add a firewall policy in VDOM1 allowing traffic from port1 to the inter-VDOM link, and a policy in VDOM2 allowing traffic from the inter-VDOM link to port2. However, traffic from 192.168.1.10 to 10.10.10.50 fails. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Refer to the exhibit.
config vdom
edit "VDOM1"
config system interface
edit "port1"
set vdom "VDOM1"
set ip 192.168.1.1 255.255.255.0
set allowaccess ping https
next
end
config router static
edit 1
set device "port1"
set gateway 192.168.1.254
next
end
end
config vdom
edit "VDOM2"
config system interface
edit "port2"
set vdom "VDOM2"
set ip 10.10.10.1 255.255.255.0
set allowaccess ping
next
end
config router static
edit 1
set device "port2"
set gateway 10.10.10.254
next
end
end
A
Firewall policies are not correctly configured
Why wrong: Policies are configured as described.
B
The inter-VDOM link is not configured
Why wrong: The problem states an inter-VDOM link was created.
C
Missing route in VDOM1 for the 10.10.10.0/24 network
VDOM1 needs a route to the destination network via the inter-VDOM link.
D
The allowaccess setting on port2 does not include ping
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Missing route in VDOM1 for the 10.10.10.0/24 network
Option C is correct because inter-VDOM link traffic requires routing in both VDOMs. Even with correct firewall policies, VDOM1 must have a route to the destination network (10.10.10.0/24) pointing to the inter-VDOM link interface. Without this route, VDOM1 drops the packet before it can be forwarded across the link, causing the failure.
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.
✗
Firewall policies are not correctly configured
Why it's wrong here
Policies are configured as described.
✗
The inter-VDOM link is not configured
Why it's wrong here
The problem states an inter-VDOM link was created.
✓
Missing route in VDOM1 for the 10.10.10.0/24 network
Why this is correct
VDOM1 needs a route to the destination network via the inter-VDOM link.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The allowaccess setting on port2 does not include ping
Why it's wrong here
The issue is routing, not access.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume firewall policies alone control inter-VDOM traffic, overlooking that routing is a prerequisite for forwarding packets across the inter-VDOM link.
Detailed technical explanation
How to think about this question
In FortiGate VDOMs, inter-VDOM links are logical point-to-point interfaces that require explicit static or dynamic routes in each VDOM to forward traffic across the link. Without a route in VDOM1 for the 10.10.10.0/24 network, the FortiGate performs a routing lookup, finds no match, and drops the packet (or sends an ICMP unreachable). This is analogous to routing between VRFs in Cisco IOS, where a route leak or static route is needed for inter-VRF communication.
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 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.
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: Missing route in VDOM1 for the 10.10.10.0/24 network — Option C is correct because inter-VDOM link traffic requires routing in both VDOMs. Even with correct firewall policies, VDOM1 must have a route to the destination network (10.10.10.0/24) pointing to the inter-VDOM link interface. Without this route, VDOM1 drops the packet before it can be forwarded across the link, causing the failure.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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.