For which two purposes would you use the command set log checksum? (Choose two.)

For which two purposes would you use the command set log checksum? (Choose two.)
A . To help protect against man-in-the-middle attacks during log upload from FortiAnalyzer to an SFTP server
B. To prevent log modification or tampering
C. To encrypt log communications
D. To send an identical set of logs to a second logging server

Answer: A,B