What is a benefit of FortiGates with an SDD disk when the connection to FAZ is lost?

The correct answer highlights the feature of FortiGates equipped with SSD disks that allows them to have a configurable buffer for storing logs when the connection to FortiAnalyzer (FAZ) is lost. This capability is significant because it ensures that log data generated during the loss of connectivity can be retained without being lost.

The use of a configurable buffer means that network administrators can set the size and duration for which logs will be held locally on the device. This ensures that even if the logging server (FAZ) is temporarily unreachable, valuable information is still captured and stored, which can later be sent to the FortiAnalyzer once the connectivity is restored. This mechanism is essential for maintaining a comprehensive log of events for security analysis, compliance, and troubleshooting, as it prevents data from being discarded during outages.

The other options do not accurately capture the logging capability related to an SDD disk and its behavior during connectivity issues. Storage of logs offline, automatic cleanup of old logs, or faster reconnection processes do not specifically address the buffer feature that enables logging continuity during brief interruptions in network connectivity.