You must find a specific security event log in the FortiAnalyzer logs displayed in FortiView,...

Exact Extract: Study Guide p.39 and p.63: FortiView displays analytics logs, while archive logs are offline and data policy controls retention.

Technical Deep Dive: The correct answers are C and D. If a specific security log is not visible in FortiView, the analyst should verify whether the ADOM data policy has purged or moved analytics logs outside the available window and check the logs through the appropriate log-browsing/search interface. Option A is wrong because .gz archive logs are offline and are not directly opened in FortiView. Option B is too aggressive as a first troubleshooting step; rebuilding the SQL database is not the normal explanation when the issue may simply be retention or archive status.