The answer is to set the load balancing algorithm to 'session' and ensure the SD-WAN rule matches HTTP traffic, typically by specifying destination port 80. This configuration works because the session algorithm distributes new sessions evenly across the selected WAN links by counting the number of active sessions per link, rather than considering bandwidth or latency, making it ideal for HTTP traffic where each user request creates a separate session. On the Fortinet NSE 7 Advanced Security NSE7 exam, this question tests your understanding of how SD-WAN load balancing algorithms map to specific traffic types; a common trap is confusing 'session' with 'volume' or 'spillover' algorithms, which handle data differently. Remember that for HTTP traffic, you want equal session distribution, not equal byte distribution. A helpful memory tip: think "Sessions for Services" — use the session algorithm when your goal is to balance the number of user connections, not the amount of data transferred.
NSE7 Advanced Networking and SD-WAN Practice Question
This NSE7 practice question tests your understanding of advanced networking and sd-wan. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 administrator is configuring SD-WAN rules with load balancing. They want to distribute HTTP traffic evenly across two WAN links based on the number of sessions. Which TWO settings should they use? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Ensure the SD-WAN rule matches HTTP traffic (e.g., using protocol or port criteria).
To distribute HTTP sessions evenly, the load balancing algorithm should be 'session', and the SD-WAN rule must match HTTP traffic using appropriate criteria (e.g., destination port 80).
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Ensure the SD-WAN rule matches HTTP traffic (e.g., using protocol or port criteria).
Why this is correct
The rule must match HTTP traffic to apply the load balancing algorithm to that traffic.
Related concept
Static NAT maps one inside address to one outside address.
✗
Set the load balancing algorithm to 'volume'.
Why it's wrong here
Volume algorithm distributes based on traffic volume, not sessions.
✗
Create a performance SLA to monitor the links.
Why it's wrong here
Performance SLA is for quality measurement, not session distribution.
✗
Enable 'set update-static-route' on the SD-WAN rule.
Why it's wrong here
That setting updates static routes, not session distribution.
✓
Set the load balancing algorithm to 'session'.
Why this is correct
Session-based algorithm distributes new sessions evenly across members.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related NSE7 NAT questions on configuration and troubleshooting.
Advanced Networking and SD-WAN — This question tests Advanced Networking and SD-WAN — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Ensure the SD-WAN rule matches HTTP traffic (e.g., using protocol or port criteria). — To distribute HTTP sessions evenly, the load balancing algorithm should be 'session', and the SD-WAN rule must match HTTP traffic using appropriate criteria (e.g., destination port 80).
What should I do if I get this NSE7 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related NSE7 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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