Choose the best answer.
You have a MySQL system with 500 GB of data that needs frequent backups.
您有一个具有500 GB数据的MySQL系统，需要频繁备份
You use a mix of MyISAM and InnoDB storage engines for your data.
您可以混合使用MyISAM和InnoDB存储引擎来进行数据处理
Examine your backup requirements:
检查您的备份需求：
·The MySQL system being backed up can never be unavailable or locked to the client applications.
正在备份的MySQL系统永远不能不可用或被锁定到客户端应用程序中
·The recovery from the backup must work on any system.
从备份中的恢复必须在任何系统上工作
·Only 1 hour of data can be lost on recovery of the backup.
在恢复备份时，只能丢失1小时的数据。
Which option fulfills all backup requirements?
使用哪个选项可以满足所有的备份要求？
A) Take a physical backup of the MySQL system.
B) Take a logical backup of the MySQL system.
C) Use the Clone Plugin to copy the data to another MySQL system.
D) Take your backup from a slave of the MySQL system.
从MySQL系统的从服务器中获取备份。
Answer: D
