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[多选] Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master-slave replication.Which two statements are correct?()比较典型的分布式复制块设备(DRBD)和MySQL标准的主从复制复制。哪个有两种说法是对的?
A.Both technologies use the TCP/IP stack as their primary transmission medium. 这两种技术都使用TCP/IP协议栈作为它们的主要传输媒介。 B.DRBD uses shared-disk technology. C.Both technologies guarantee an identical copy of data on the secondary node. D.Only MySQL can maintain a time-delayed copy of data on the secondary node. 只有MySQL可以在辅助节点上维护数据的延时副本。
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