Which technologies can reduce write I/O latency in long-distance active-active scenarios? (Multiple choice)

• A.FastWrite
• B.RDMA
• C.Optimistic lock
• D.Gateway-free design

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What is the specification of the OceanStor Dorado V6 high-end controller?

• A.3 controllers per 3U
• B.2 controllers per 2U
• C.4 controllers per 4U
• D.4 controllers per 3U

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Which statement about the ROW technology for OceanStor V5 is true?

• A.One of the advantages of ROW is that it does not easily generate data fragments
• B.Block snapshots use the ROW technology
• C.ROW-based snapshots do not have extra data copies, and therefore the performance is better.

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What is the IO model for Vdbench performance testing on the test of "Random Read and Write Performance (With Data Reduction)?

• A.16KB_70%Read_100% Random
• B.8KB_100%Read_70%Radom
• C.8KB_70%Read_100%Random

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Which statements about dynamic reconstruction are true? (Multiple choice)

• A.The data redundancy decreases.
• B.The number of RAID members decreases.
• C.Dynamic reconstruction is faster than ordinary reconstruction.
• D.The number of RAID members remains unchanged.

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