多选题Compare a typical Distributed Replicated Block Device (DRBD) with MySQL Standard Replication using master-slave replication. Which two statements are correct?（）ABoth technologies guarantee an identical copy of data on the secondary nodeBOnly MySQL can maintain a time-delayed copy of data on the secondary nodeCBoth technologies use the TCP/IP stack as their primary transmission mediumDDRBD uses shared-disk technology
多选题
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
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