NSE7 Enterprise Firewall and VDOMs Practice Question
This NSE7 practice question tests your understanding of enterprise firewall and vdoms. 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.
An administrator needs to ensure that traffic between two VDOMs (VDOM_A and VDOM_B) is inspected by an IPS profile. Which TWO configuration elements are required? (Choose TWO.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
An inter-VDOM link with IP addresses in the same subnet
An inter-VDOM link is required to route traffic between VDOMs, and placing IP addresses in the same subnet on both ends ensures direct Layer 2 connectivity without routing overhead. This allows the firewall policies in each VDOM to control traffic flow, and applying an IPS profile on the policy in VDOM_A (with the inter-VDOM link as the destination interface) ensures that all traffic leaving VDOM_A toward VDOM_B is inspected by IPS.
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.
✓
An inter-VDOM link with IP addresses in the same subnet
Why this is correct
Inter-VDOM links are necessary to route traffic between VDOMs.
Related concept
Read the scenario before looking for a memorised answer.
✗
NAT enabled on the inter-VDOM link
Why it's wrong here
NAT is optional and not required for IPS inspection.
✗
A firewall policy on VDOM_B with the source as the inter-VDOM link
Why it's wrong here
Only one policy is needed on the source VDOM for inter-VDOM traffic.
A firewall policy on VDOM_A with the inter-VDOM link as the destination interface and an IPS profile applied
Why this is correct
The policy allows traffic and applies the IPS profile.
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 often assume an IPsecVPN or NAT is needed for inter-VDOM communication, but FortiGate uses inter-VDOM links with same-subnet IPs and firewall policies to enable direct, inspectable traffic flow.
Detailed technical explanation
How to think about this question
Inter-VDOM links are implemented as virtual interfaces that belong to different VDOMs but share a common kernel data path, allowing traffic to be forwarded between VDOMs without leaving the FortiGate. The IPS profile is applied at the firewall policy level, and when traffic traverses the inter-VDOM link, it is subject to the security profiles configured on the egress policy of the source VDOM. In a real-world scenario, this design is used to enforce separate security policies for different departments or customers while still allowing controlled, inspected traffic flow between them.
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: An inter-VDOM link with IP addresses in the same subnet — An inter-VDOM link is required to route traffic between VDOMs, and placing IP addresses in the same subnet on both ends ensures direct Layer 2 connectivity without routing overhead. This allows the firewall policies in each VDOM to control traffic flow, and applying an IPS profile on the policy in VDOM_A (with the inter-VDOM link as the destination interface) ensures that all traffic leaving VDOM_A toward VDOM_B is inspected by IPS.
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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