NSE7 Enterprise Firewall and VDOMs Practice Question
A FortiGate in HA mode has two VDOMs: VDOM1 and VDOM2. The administrator needs to ensure that if the active unit fails, the standby unit takes over with minimal disruption. Which TWO steps should be taken?
⚠ Common exam trap
A common mix-up: candidates think enabling HA on each VDOM individually is required (Option C), but FortiGate HA is a global feature that automatically synchronizes all VDOM configurations across cluster members, and per-VDOM HA configuration does not exist.
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
✓
Enable session synchronization
Session synchronization ensures that stateful firewall sessions (e.g., TCP/UDP connections) are replicated from the active FortiGate to the standby unit. In HA active-passive mode, this allows the standby to seamlessly take over active sessions upon failover, minimizing disruption. Without session synchronization, all existing connections would be dropped and must be re-established.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enable session synchronization
Why this is correct
Session sync ensures active sessions are preserved on failover.
- ✗
Set the HA mode to active-active
Why it's wrong here
Active-active is possible but not required for minimal disruption; active-passive also works.
- ✗
Enable HA on each VDOM individually
Why it's wrong here
HA is configured globally, not per VDOM.
- ✓
Configure the same VDOMs on both units
Why this is correct
Both HA units must have identical VDOM configurations.
- ✗
Use VDOM link for inter-VDOM traffic
Why it's wrong here
Not required for HA failover.
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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.