What is the purpose of a log group in FortiAnalyzer?

The purpose of a log group in FortiAnalyzer is to virtually group devices without additional storage needs. This allows administrators to organize and manage log data from multiple devices efficiently. By creating log groups, users can streamline the analysis process, making it easier to generate reports or monitor security events across various devices without duplicating log storage requirements. Log groups provide a logical structure to the logs, enabling better management and analysis without necessitating extra physical storage resources.

The other options do not accurately represent the purpose of a log group. While logs may be physically stored for each device, the main function of a log group is not to serve as a storage mechanism. Additionally, log groups do not directly create backups nor are they solely intended for reporting requirements; their primary function is to enable easier data management and organization across multiple devices.