Refer to Exhibit:What does the data point at 21:20 indicate?

Exact Extract: Study Guide p.141: Insert Rate is the rate logs are indexed; Receive Rate is the rate raw logs reach FortiAnalyzer.

Technical Deep Dive: The correct answer is A. At the indicated time, the insert-rate value is higher than the receive-rate value, which means FortiAnalyzer is indexing logs faster than new logs are arriving. This can happen when the database is catching up with previously received logs. Option B is too literal and unsupported; the graph shows rates, not a one-log daemon lead. Option C is wrong because a rebuild is not indicated by a single favorable rate point. Option D would apply when received logs are waiting because indexing is behind, which is the reverse condition.