The answer is to configure a virtual cluster with the load-balance method set to source IP. This is correct because in a FortiGate active-active HA VDOM environment, a virtual cluster allows you to apply per-VDOM load balancing, and setting the method to source IP ensures that traffic from the same source is consistently hashed to the same unit, providing session persistence while distributing the load across both cluster members. On the Fortinet NSE 7 Advanced Security NSE7 exam, this question tests your understanding of how active-active HA interacts with VDOMs—a common trap is confusing global load balancing with per-VDOM load balancing, which requires a virtual cluster. Remember the key distinction: without a virtual cluster, active-active HA treats all VDOMs as a single load-balancing domain. Memory tip: think "VDOM cluster = virtual cluster, source IP sticks the session."
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.
A network engineer is designing a FortiGate HA cluster with two units operating in active-active mode. The cluster will be placed in a VDOM-enabled environment. The engineer wants to ensure that traffic from a specific VDOM is load-balanced across both units based on source IP address. Which setting must be configured on the cluster to achieve this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure a virtual cluster with load-balance method source IP
In a VDOM-enabled active-active HA cluster, per-VDOM load balancing is achieved by configuring a virtual cluster and setting the load-balance method to source IP. This allows the cluster to distribute traffic for that specific VDOM across both units based on the source IP hash, ensuring session persistence while balancing the load.
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.
✗
Configure randomize-vip under config system ha
Why it's wrong here
randomize-vip randomizes VIP traffic, not general forwarding.
✓
Configure a virtual cluster with load-balance method source IP
Why this is correct
Virtual cluster with load-balance method distributes traffic per source IP.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure vdom-load-balance under config system ha
Why it's wrong here
vdom-load-balance assigns VDOMs to cluster members, not per-packet load balancing.
✗
Enable session pickup and set session-pickup-delay to 0
Why it's wrong here
Session pickup affects session synchronization, not load balancing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'vdom-load-balance' with a real command, or assume that session pickup alone can distribute traffic, when in fact virtual clusters with an explicit load-balance method are required for per-VDOM source IP-based load balancing.
Detailed technical explanation
How to think about this question
Virtual clusters in FortiGate HA allow you to assign specific VDOMs to a virtual cluster and define a load-balance algorithm (e.g., source IP, least connection) for that cluster. Under the hood, the cluster uses a hash of the source IP to deterministically select the primary unit for each session, ensuring that all packets from the same source IP are processed by the same unit. This is critical in environments like branch offices where source IP-based persistence is required for applications such as VPN or web sessions.
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 practitioner preparing for the NSE7 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
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: Configure a virtual cluster with load-balance method source IP — In a VDOM-enabled active-active HA cluster, per-VDOM load balancing is achieved by configuring a virtual cluster and setting the load-balance method to source IP. This allows the cluster to distribute traffic for that specific VDOM across both units based on the source IP hash, ensuring session persistence while balancing the load.
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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