Question 10
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: New office clients cannot obtain network settings because the FortiGate LAN interface has no DHCP server or valid lease range. Which observed outcome BEST demonstrates that the intended correction works?
Explanation
Correct Answer
An approved client receives a valid lease in the intended subnet and can reach its configured default gateway and DNS resolver. This outcome validates the intended correction for: New office clients cannot obtain network settings because the FortiGate LAN interface has no DHCP server or valid lease range. The associated approved corrective action is: Configure the FortiGate DHCP server on the intended LAN interface with an appropriate address pool, gateway and DNS options. The Juniper Media reviewer can therefore distinguish observable protection from an untested configuration claim.
Incorrect Answers
The corrected cluster displays the documented primary and secondary roles with healthy heartbeat paths and no policy changes made blindly. This would verify a separate corrective action: Inspect HA status, uptime, priorities, override and monitored-interface health to identify the actual election cause. That separate change addresses: An HA cluster shows an unexpected primary member after startup, but engineers change traffic policies instead of diagnosing heartbeat and election state. It does not validate the current Juniper Media issue: New office clients cannot obtain network settings because the FortiGate LAN interface has no DHCP server or valid lease range. The relevant acceptance evidence is: An approved client receives a valid lease in the intended subnet and can reach its configured default gateway and DNS resolver.
Both appliances form the expected HA cluster and report healthy configuration synchronization and a clear primary or secondary role. This would verify a separate corrective action: Align the cluster members to a supported compatible FortiOS version and configure matching HA settings and heartbeat connectivity. That separate change addresses: Two FortiGate appliances expected to form an FGCP high-availability cluster use incompatible firmware versions and do not synchronize. It does not validate the current Juniper Media issue: New office clients cannot obtain network settings because the FortiGate LAN interface has no DHCP server or valid lease range. The relevant acceptance evidence is: An approved client receives a valid lease in the intended subnet and can reach its configured default gateway and DNS resolver.
A controlled loss of the monitored primary link triggers the expected cluster transition without changing unrelated firewall policies. This would verify a separate corrective action: Configure HA interface monitoring for the required upstream links and test the designed failover behavior. That separate change addresses: A FortiGate active-passive HA pair keeps serving through a failed primary WAN port because the critical interface is not monitored. It does not validate the current Juniper Media issue: New office clients cannot obtain network settings because the FortiGate LAN interface has no DHCP server or valid lease range. The relevant acceptance evidence is: An approved client receives a valid lease in the intended subnet and can reach its configured default gateway and DNS resolver.