Question 680
At Riverton Utilities, the operational network security team administers FortiGate-based protection for distributed field operations and private monitoring systems under requirements for limited administrative access and auditable controls. The security reviewer verifies a claimed fix for: An administrator creates a route referencing the wrong outgoing VLAN subinterface, causing packets to leave through an unrelated access network. Which observed outcome BEST demonstrates that the intended correction works?
Explanation
Correct Answer
A scoped packet capture confirms the test destination traffic exits the intended VLAN interface and not the unrelated network. This outcome validates the intended correction for: An administrator creates a route referencing the wrong outgoing VLAN subinterface, causing packets to leave through an unrelated access network. The associated approved corrective action is: Correct the static route's next-hop and FortiGate interface association using the actual connected subnet information. The Riverton Utilities 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 Riverton Utilities issue: An administrator creates a route referencing the wrong outgoing VLAN subinterface, causing packets to leave through an unrelated access network. The relevant acceptance evidence is: A scoped packet capture confirms the test destination traffic exits the intended VLAN interface and not the unrelated network.
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 Riverton Utilities issue: An administrator creates a route referencing the wrong outgoing VLAN subinterface, causing packets to leave through an unrelated access network. The relevant acceptance evidence is: A scoped packet capture confirms the test destination traffic exits the intended VLAN interface and not the unrelated network.
The selected branch flow is steered to its intended member and unrelated clients follow their ordinary SD-WAN routing policy. This would verify a separate corrective action: Narrow the SD-WAN service rule's source and destination selectors to the approved application traffic. That separate change addresses: An SD-WAN application steering rule matches every source address because a broad firewall source group replaced the intended branch subnet. It does not validate the current Riverton Utilities issue: An administrator creates a route referencing the wrong outgoing VLAN subinterface, causing packets to leave through an unrelated access network. The relevant acceptance evidence is: A scoped packet capture confirms the test destination traffic exits the intended VLAN interface and not the unrelated network.