Question 540
An engineer upgrades one HA member directly to an unsupported image and leaves the cluster split between incompatible FortiOS versions. Which diagnostic evidence should the FortiGate administrator check FIRST?
Explanation
Correct Answer
Inspect reserved management configuration, independent management routes, peer access, HA firmware upgrade status, pre/post checksums and cluster election events. This distinguishes the relevant FortiGate device, session or controller evidence. Access to the virtual cluster primary is not the same as independent access to each physical peer, and an HA firmware upgrade requires build compatibility and sequence planning. The corresponding action is: Provide out-of-band access to each HA member through supported reserved management interfaces, and stage firmware upgrades with cluster health and rollback checks. Scenario: An engineer upgrades one HA member directly to an unsupported image and leaves the cluster split between incompatible FortiOS versions.
Incorrect Answers
Check interface administrative-access flags, admin trusted-host entries, role profiles, management service ports, certificate warnings and successful authorized logins. This diagnostic is related to FortiGate administrator access and trusted management surfaces rather than the controlling evidence for this scenario. Examine instead: Inspect reserved management configuration, independent management routes, peer access, HA firmware upgrade status, pre/post checksums and cluster election events. Scenario: An engineer upgrades one HA member directly to an unsupported image and leaves the cluster split between incompatible FortiOS versions.
Inspect HA group name and password, heartbeat link status, cluster member health, firmware/build compatibility, priority settings and synchronization checksums. This diagnostic is related to FGCP cluster heartbeat, synchronization and election settings rather than the controlling evidence for this scenario. Examine instead: Inspect reserved management configuration, independent management routes, peer access, HA firmware upgrade status, pre/post checksums and cluster election events. Scenario: An engineer upgrades one HA member directly to an unsupported image and leaves the cluster split between incompatible FortiOS versions.
Compare connected PoP, endpoint tunnel state, DNS resolution, traffic steering mode, cloud security inspection result, private-app connector health and remote-user event logs. This diagnostic is related to FortiSASE PoP policy steering and remote diagnostics rather than the controlling evidence for this scenario. Examine instead: Inspect reserved management configuration, independent management routes, peer access, HA firmware upgrade status, pre/post checksums and cluster election events. Scenario: An engineer upgrades one HA member directly to an unsupported image and leaves the cluster split between incompatible FortiOS versions.