A-All databases are backed up to the output file. This is true because the --all-databases option tells mysqldump to dump all databases. C-All binary logs are deleted from the master. This is true because the --delete-master-logs option tells mysqldump to delete all binary logs on the master server2. However, it’s important to note that deleting the MySQL binary logs with mysqldump --delete-master-logs can be dangerous if your server is a replication source server, because replicas might not yet fully have processed the contents of the binary log