Question 760
At Juniper Media, the edge security operations team administers FortiGate-based protection for a global content production and publishing platform under requirements for application visibility and stable internet connectivity. Following the approved change, the team must validate: An administrator expects SD-WAN to migrate all active TCP sessions across providers seamlessly when public SNAT source addresses change. Which observed outcome BEST demonstrates that the intended correction works?
Explanation
Correct Answer
The test report distinguishes new connections succeeding on backup WAN from existing sessions requiring a safe reconnection. This outcome validates the intended correction for: An administrator expects SD-WAN to migrate all active TCP sessions across providers seamlessly when public SNAT source addresses change. The associated approved corrective action is: Document session continuity limitations and configure suitable failover behavior and application reconnect handling for the required protocols. The Juniper Media reviewer can therefore distinguish observable protection from an untested configuration claim.
Incorrect Answers
A controlled request to the obsolete prefix is discarded locally while more specific valid routes continue to forward traffic. This would verify a separate corrective action: Use an appropriately scoped blackhole route for the obsolete destination prefix with a deliberate distance and precedence. That separate change addresses: A routing loop sends packets toward a decommissioned network because no explicit safe discard route exists for an obsolete summary prefix. It does not validate the current Juniper Media issue: An administrator expects SD-WAN to migrate all active TCP sessions across providers seamlessly when public SNAT source addresses change. The relevant acceptance evidence is: The test report distinguishes new connections succeeding on backup WAN from existing sessions requiring a safe reconnection.
The routing table installs the intended destination route and a new test flow reaches the specified remote prefix. This would verify a separate corrective action: Add or correct the supporting reachable next-hop route and verify the candidate static route resolves to a valid egress interface. That separate change addresses: A remote prefix depends on a recursively resolved gateway but the FortiGate has no valid path to resolve that gateway address. It does not validate the current Juniper Media issue: An administrator expects SD-WAN to migrate all active TCP sessions across providers seamlessly when public SNAT source addresses change. The relevant acceptance evidence is: The test report distinguishes new connections succeeding on backup WAN from existing sessions requiring a safe reconnection.
When the approved gateway test fails, the ineffective static route is withdrawn or deprioritized and traffic uses the healthy alternate. This would verify a separate corrective action: Configure supported link or gateway health monitoring and tie route availability to the documented connectivity requirement. That separate change addresses: A FortiGate static route stays selected after its WAN gateway stops responding because interface link state remains up. It does not validate the current Juniper Media issue: An administrator expects SD-WAN to migrate all active TCP sessions across providers seamlessly when public SNAT source addresses change. The relevant acceptance evidence is: The test report distinguishes new connections succeeding on backup WAN from existing sessions requiring a safe reconnection.