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NSE 5 - FortiSASE and SD-WAN 7.6 Core Administrator Exam Materials-Question 2 Discussion
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Refer to the exhibit, which shows the SD-WAN rule status and configuration. Based on the exhibit, which change in the measured packet loss will make HUB1-VPN3 the new preferred member? (Choose one answer)

  • A. When all three members have the same packet loss
  • B. When HUB1-VPN1 has 4% packet loss
  • C. When HUB1-VPN1 has 12% packet loss
  • D. When HUB1-VPN3 has 4% packet loss
Correct Answer: C

Brave-Dump Clients Votes

A 71.43%
C 28.57%

Comments



Miguel 2025-12-10 00:13:05

Selected Answers: A


The correct answer is A. When all three members have the same packet loss.

In this rule, SD-WAN is using Best Quality with link-cost-factor packet-loss and link-cost-threshold 0.
That means FortiGate always selects the member with the lowest packet loss, and only if the packet loss is equal it uses the priority-members list (6 4 5) as a tiebreaker.
If all three members have the same loss, the highest-priority member (seq 6 = HUB1-VPN3) becomes the preferred one.

Option C is wrong because if HUB1-VPN1 has 12% loss, the losses are:

HUB1-VPN1: 12%

HUB1-VPN2: 4%

HUB1-VPN3: 12%

The lowest loss is 4%, so HUB1-VPN2 would be selected, not HUB1-VPN3.
I don´t understand why select C in the solution.
  • Miguel 2025-12-15 13:26:51
    OH , the test mode said ""priority"", ""not"" ""Best quality"", in priority mode the correct is C Because the question assumes priority mode with tie-breaker: when HUB1-VPN1 reaches 12%, it is no longer the best, and the system may re-evaluate based on configured priorities (members 6 4 5). If HUB1-VPN1 becomes unhealthy or exceeds threshold, HUB1-VPN3 could be selected due to priority order.
  • Guilherme Bastos 2026-08-24 20:18:31
    "Actually, the 'Best Quality' strategy is defined in the CLI with the command set mode priority. Therefore, Option A is undeniably the correct answer. In Best Quality mode, FortiGate evaluates the link-cost-factor (packet loss in this case). If all three members have the same packet loss (Option A), a tie occurs. When there is a tie, FortiGate uses the priority-members list (6 4 5) as the tie-breaker, making member 6 (HUB1-VPN3) the preferred one. Option C is mathematically impossible: if HUB1-VPN1 drops in quality and reaches 12% packet loss, the SD-WAN engine will simply select HUB1-VPN2, which is currently sitting at a healthy 4% packet loss. It would never skip a healthy 4% link to choose a degraded 12% link (HUB1-VPN3) just because of the priority list."
  • Guilherme Bastos 2026-08-24 20:18:59
    "Actually, the 'Best Quality' strategy is defined in the CLI with the command set mode priority. Therefore, Option A is undeniably the correct answer. In Best Quality mode, FortiGate evaluates the link-cost-factor (packet loss in this case). If all three members have the same packet loss (Option A), a tie occurs. When there is a tie, FortiGate uses the priority-members list (6 4 5) as the tie-breaker, making member 6 (HUB1-VPN3) the preferred one. Option C is mathematically impossible: if HUB1-VPN1 drops in quality and reaches 12% packet loss, the SD-WAN engine will simply select HUB1-VPN2, which is currently sitting at a healthy 4% packet loss. It would never skip a healthy 4% link to choose a degraded 12% link (HUB1-VPN3) just because of the priority list."

Miguel 2025-12-15 13:27:14

Selected Answers: C


Because the question assumes priority mode with tie-breaker: when HUB1-VPN1 reaches 12%, it is no longer the best, and the system may re-evaluate based on configured priorities (members 6 4 5). If HUB1-VPN1 becomes unhealthy or exceeds threshold, HUB1-VPN3 could be selected due to priority order.
  • Brave-Dumps.com Admin 2025-12-15 13:44:01
    Thanks

Diaa El-rayse 2026-04-23 18:43:29

Selected Answers: A


Best answer is A , when all three have the same packet loss , it will select based on the configured priority

Diaa El-rayse 2026-04-28 10:11:10

Selected Answers: A


From the Fortinet Guide --> If you set link-cost-threshold to 0, then FortiGate performs a strict metric comparison. That is, there is no advantage, and the member with the best metric becomes preferred. If two or more members have the same metric, FortiGate uses the member priority (configuration order) as the tiebreaker.

gowtham devaraju 2026-08-07 01:21:59

Selected Answers: A


Via CLI priority means best quality

Mohammed Qashqesh 2026-08-11 09:45:40

Selected Answers: A


The answer is A because there is no threshold specified in the question, so we rely on the actual values. Therefore, the path with the lowest latency will be preferred.

If the latency values are equal, the tie-breaker is the priority. In this case, Hub1-VPN3 has the highest priority, so it will be selected as the preferred path.

Therefore, A is the correct answer.

aliseifeddine 2026-09-06 15:21:31

Selected Answers: C


C