Question 670
At Silvercrest University, the campus network defense team administers FortiGate-based protection for student and staff network services across buildings under requirements for separated identities and protected learning services. Following the approved change, the team must validate: Two FortiGate default static routes are unintentionally load-balanced when the business requirement calls for deterministic primary and secondary WAN use. Which observed outcome BEST demonstrates that the intended correction works?
Explanation
Correct Answer
Controlled sessions use the preferred WAN under normal conditions and reach the backup only when the primary route is unavailable. This outcome validates the intended correction for: Two FortiGate default static routes are unintentionally load-balanced when the business requirement calls for deterministic primary and secondary WAN use. The associated approved corrective action is: Review equal-cost route eligibility and set distances or priorities to reflect the intended primary-backup architecture. The Silvercrest University reviewer can therefore distinguish observable protection from an untested configuration claim.
Incorrect Answers
A fresh controlled flow matches the targeted service rule and a separate generic flow retains its standard route. This would verify a separate corrective action: Adjust rule ordering and match criteria so the most specific business traffic is evaluated by its intended SD-WAN policy. That separate change addresses: A test client does not receive the expected preferred link because a higher-priority SD-WAN service rule matches the same traffic first. It does not validate the current Silvercrest University issue: Two FortiGate default static routes are unintentionally load-balanced when the business requirement calls for deterministic primary and secondary WAN use. The relevant acceptance evidence is: Controlled sessions use the preferred WAN under normal conditions and reach the backup only when the primary route is unavailable.
A controlled flow shows both the correct firewall allow policy and the intended SD-WAN member selection in diagnostic output. This would verify a separate corrective action: Inspect the SD-WAN service rule match, member health and routing decision independently of the forward security policy. That separate change addresses: FortiGate logs show an internet flow matched a permissive forward policy but the engineer cannot explain its SD-WAN link choice. It does not validate the current Silvercrest University issue: Two FortiGate default static routes are unintentionally load-balanced when the business requirement calls for deterministic primary and secondary WAN use. The relevant acceptance evidence is: Controlled sessions use the preferred WAN under normal conditions and reach the backup only when the primary route is unavailable.
A representative backup transfer uses the cheaper eligible link while latency-sensitive traffic follows its separate policy. This would verify a separate corrective action: Apply the supported cost-oriented SD-WAN member selection strategy with suitable link costs and business traffic classification. That separate change addresses: A cost-sensitive backup service uses an expensive link despite an available low-cost connection because the SD-WAN strategy ignores link cost. It does not validate the current Silvercrest University issue: Two FortiGate default static routes are unintentionally load-balanced when the business requirement calls for deterministic primary and secondary WAN use. The relevant acceptance evidence is: Controlled sessions use the preferred WAN under normal conditions and reach the backup only when the primary route is unavailable.