- A
Health-check probes can be sent from any interface, including loopback.
Why wrong: Health-check probes are sent from the SD-WAN member interfaces themselves, not from loopback.
- B
Health-check can only be configured on physical interfaces, not VLANs or subinterfaces.
Why wrong: Health-check can be configured on any SD-WAN member, including VLANs and subinterfaces.
- C
Health-check can be configured with multiple thresholds for jitter, latency, and packet loss.
Performance SLA thresholds can be defined for jitter, latency, and packet loss.
- D
Health-check can update the routing table by setting 'update-static-route' to enable fallback.
When enabled, health-check failure can remove the static route, and recovery can re-add it.
- E
Health-check can be configured to use HTTP or DNS protocols to verify link health.
HTTP and DNS are valid protocol options for health-check probes.
Quick Answer
The correct answer is that health-check can be configured to use HTTP or DNS protocols to verify link health, as this allows FortiGate to assess actual application-layer connectivity rather than just basic IP reachability. This is true because the SD-WAN health-check configuration supports multiple customizable thresholds for jitter, latency, and packet loss, enabling granular link quality assessment—if any threshold is exceeded, the link is marked as failed, providing precise control over traffic steering. On the Fortinet NSE 7 Advanced Security NSE7 exam, this concept tests your understanding of how SD-WAN rules interact with real-time link performance metrics, often appearing in scenario-based questions where a link passes a ping test but fails a DNS or HTTP health check due to high jitter. A common trap is assuming ICMP echo alone is sufficient for health checks, but the exam emphasizes that protocol-specific checks and threshold tuning are critical for accurate link monitoring. Remember the mnemonic “JLP” for Jitter, Latency, and Packet loss—the three thresholds that must be configured to truly validate SD-WAN health.
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.
Which THREE statements are true about FortiGate SD-WAN health-check configuration?
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
Health-check can be configured with multiple thresholds for jitter, latency, and packet loss.
Option C is correct because FortiGate SD-WAN health-check allows configuring multiple thresholds for jitter, latency, and packet loss. These thresholds are used to determine the quality of a link; if any threshold is exceeded, the link is considered failed. This enables granular control over link health assessment beyond simple reachability.
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.
- ✗
Health-check probes can be sent from any interface, including loopback.
Why it's wrong here
Health-check probes are sent from the SD-WAN member interfaces themselves, not from loopback.
- ✗
Health-check can only be configured on physical interfaces, not VLANs or subinterfaces.
Why it's wrong here
Health-check can be configured on any SD-WAN member, including VLANs and subinterfaces.
- ✓
Health-check can be configured with multiple thresholds for jitter, latency, and packet loss.
Why this is correct
Performance SLA thresholds can be defined for jitter, latency, and packet loss.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Health-check can update the routing table by setting 'update-static-route' to enable fallback.
Why this is correct
When enabled, health-check failure can remove the static route, and recovery can re-add it.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Health-check can be configured to use HTTP or DNS protocols to verify link health.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume health-check can use any interface as a source (like loopback) or that it only works on physical interfaces, but FortiGate restricts probe source to the member interface and supports VLANs and aggregates.
Detailed technical explanation
How to think about this question
Under the hood, FortiGate SD-WAN health-check uses ICMP, TCP, HTTP, or DNS probes sent at configurable intervals. The thresholds for jitter, latency, and packet loss are evaluated per probe response; if the measured values exceed the configured thresholds for a specified number of consecutive probes, the link is marked as dead. This mechanism integrates with route table updates via 'update-static-route' to trigger failover to backup links, which is critical in multi-WAN deployments where link quality fluctuates.
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 help-desk technician troubleshoots why a newly connected PC cannot reach shared printers on the same floor. The cable is good, the switch port is active, but the PC is in VLAN 20 and the printers are in VLAN 10. The uplink trunk only allows VLAN 10. A trunk being up does not mean every VLAN crosses it.
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.
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FAQ
Questions learners often ask
What does this NSE7 question test?
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: Health-check can be configured with multiple thresholds for jitter, latency, and packet loss. — Option C is correct because FortiGate SD-WAN health-check allows configuring multiple thresholds for jitter, latency, and packet loss. These thresholds are used to determine the quality of a link; if any threshold is exceeded, the link is considered failed. This enables granular control over link health assessment beyond simple reachability.
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.
About these practice questions
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Last reviewed: Jun 11, 2026
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.
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