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多项选择题Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master-slave replication. Which two statements are correct?()

A、Both technologies guarantee an identical copy of data on the secondary node

B、Only MySQL can maintain a time-delayed copy of data on the secondary node

C、Both technologies use the TCP/IP stack as their primary transmission medium

D、DRBD uses shared-disk technology

  • B,C
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