NSE7 Enterprise Firewall and VDOMs Practice Question
A FortiGate administrator is configuring inter-VDOM routing between two VDOMs: VDOM-A and VDOM-B. The administrator wants to allow traffic from VDOM-A to reach a server in VDOM-B while keeping the VDOMs logically separated. Which configuration step is REQUIRED?
⚠ Common exam trap
Test-takers frequently assume inter-VDOM routing is automatically enabled or can be achieved with static routes alone, overlooking the mandatory VDOM link and firewall policies that enforce logical separation.
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
✓
Create a VDOM link between VDOM-A and VDOM-B and configure firewall policies on both sides
Inter-VDOM routing on FortiGate requires a VDOM link, which is a logical interface pair that connects two VDOMs. Firewall policies must be configured on both sides of the VDOM link to explicitly allow traffic between the VDOMs, ensuring logical separation while enabling controlled communication. Without these policies, traffic will be dropped even if routes exist.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure a static route in VDOM-A pointing to the server's subnet via the VDOM-B gateway
Why it's wrong here
Routing alone is insufficient; the VDOM link and policies are required.
- ✓
Create a VDOM link between VDOM-A and VDOM-B and configure firewall policies on both sides
Why this is correct
A VDOM link is the standard method for inter-VDOM routing. Each VDOM needs a policy to allow traffic out and in.
- ✗
Enable inter-VDOM routing under system settings globally
Why it's wrong here
There is no global inter-VDOM routing toggle. The VDOM link is the required mechanism.
- ✗
Assign the same physical interface to both VDOMs and configure routing
Why it's wrong here
A physical interface can only belong to one VDOM. You cannot share it across VDOMs.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.