The answer is to use static routes with the appropriate VRF tags to leak routes between VRFs. This is correct because FortiGate VRFs are inherently isolated routing tables, and without explicit route leaking, traffic from VRF 10 cannot reach a server in VRF 20. Route leaking bridges this isolation by injecting routes from one VRF into another, typically configured under `config router leak` or via route redistribution with VRF tags, ensuring the destination network is reachable across VRF boundaries. On the Fortinet NSE 7 Advanced Security NSE7 exam, this concept tests your understanding of multi-VRF segmentation and inter-VRF routing, often appearing in scenario-based questions where a common trap is to forget that VRFs do not share routes by default. A key memory tip is to think of VRF tags as passports: without a valid tag (route leak), the traffic is denied entry into another VRF.
NSE7 Advanced Networking and SD-WAN Practice Question
This NSE7 practice question tests your understanding of advanced networking and sd-wan. 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 FortiGate is configured with multiple VRF instances. The administrator needs to ensure that traffic from VRF 10 can reach a server in VRF 20. Which configuration is required?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use static routes with the appropriate VRF tags to leak routes between VRFs
To route between VRFs, you must configure route leaking. This is done using 'config router leak' or by using route redistribution with VRF tags. Without route leaking, VRFs are isolated.
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.
✗
Enable inter-VRF routing by setting 'vrf-leak enable' on the VRF instances
Why it's wrong here
No such command; route leaking is explicit.
✗
Configure a firewall policy that allows traffic between the VRFs
Why it's wrong here
Firewall policies require routing first; they do not enable routing between VRFs.
✗
Place both interfaces in the same VRF
Why it's wrong here
That would defeat the purpose of separate VRFs.
✓
Use static routes with the appropriate VRF tags to leak routes between VRFs
Why this is correct
Route leaking can be done with static routes or redistribution.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
No such command; route leaking is explicit.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 NSE7 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Advanced Networking and SD-WAN — This question tests Advanced Networking and SD-WAN — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use static routes with the appropriate VRF tags to leak routes between VRFs — To route between VRFs, you must configure route leaking. This is done using 'config router leak' or by using route redistribution with VRF tags. Without route leaking, VRFs are isolated.
What should I do if I get this NSE7 question wrong?
Identify which NSE7 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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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