Question 1
A financial services company is deploying a FortiGate HA cluster in active-passive mode between two data centers using a stretched VLAN for the HA heartbeat. During a network event, administrators observe that both FortiGates temporarily become master, creating a split-brain scenario. Which FortiOS HA setting is specifically designed to mitigate this condition by allowing a master to shut down monitored interfaces on the secondary unit if it fails to receive heartbeats?
Answer and explanation
Correct answer: B
The set link-failed-signal enable command is specifically designed to prevent split-brain scenarios in HA clusters, particularly those with remote links. When enabled on the master unit, if it stops receiving heartbeats from the slave, it sends a link-failed signal. This signal instructs the slave unit to shut down its monitored interfaces, preventing it from incorrectly taking over the master role and causing a network outage.