The correct answer is application, as SD-WAN rules in FortiOS can match traffic based on application signatures, along with other criteria like destination, source, and internet service. This is because SD-WAN rule match criteria leverage Fortinet’s deep packet inspection to identify over 5,000 application signatures, allowing granular traffic steering without relying solely on IP addresses or ports. On the Fortinet NSE 7 Advanced Security NSE7 exam, this concept tests your understanding of how SD-WAN rules differ from traditional policy-based routing, often appearing in scenario-based questions where you must choose the correct match criteria from a list that includes traps like “protocol number” or “VLAN ID.” A common memory tip is to remember that SD-WAN rules are application-aware, not just network-layer aware, so think “app-first” when evaluating match options. For quick recall, use the mnemonic “A-D-S-I” (Application, Destination, Source, Internet Service) to remember the four primary match criteria.
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.
An administrator is configuring SD-WAN rules to direct specific traffic types. Which TWO of the following criteria can be used in an SD-WAN rule to match traffic?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Destination IP address
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Source interface
Why it's wrong here
SD-WAN rules match on incoming interface (the interface where traffic enters the FortiGate), not source interface.
✗
Time of day
Why it's wrong here
Time-based rules are not available in SD-WAN rules; they are a feature of firewall policies.
✓
Destination IP address
Why this is correct
Destination IP can be used as a match criterion.
Related concept
Static NAT maps one inside address to one outside address.
✓
Application
Why this is correct
Application control can be used to match traffic by application.
Related concept
Static NAT maps one inside address to one outside address.
✗
URL category
Why it's wrong here
URL category is used in web filtering, not directly in SD-WAN rules.
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: Destination IP address
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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Question Discussion
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