Which two statements are true regarding FortiAnalyzer operating modes? (Choose two.)

Which two statements are true regarding FortiAnalyzer operating modes? (Choose two.)
A . When in collector mode, FortiAnalyzer collects logs from multiple devices and forwards these logs in the original binary format.
B. Collector mode is the default operating mode.
C. When in collector mode. FortiAnalyzer supports event management and reporting features.
D. By deploying different FortiAnalyzer devices with collector and analyzer mode in a network, you can improve the overall performance of log receiving, analysis, and reporting

Answer: A,D

Explanation:

Reference:

https://docs.fortinet.com/document/fortianalyzer/7.0.0/administration-guide/227478/collector-mode

https://docs.fortinet.com/document/fortianalyzer/7.0.0/administration-guide/312644/analyzer-collector-collaboration