Which statements about Huawei's geo-redundant 3DC DR solution are true? (Multiple choice)

• A.HyperMetro SAN support DR Star.
• B.HyperMetro NAS supports DR Star.
• C.Interworking of DR services among entry-level mid-range, and high-end storage arrays is supported.
• D.Visual DR management and one-click DR drill and recovery are supported.

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Which of me following technologies can be used to switch the number of RFs dynamically?

• A.OFDMA
• B.SDR
• C.MU-MIMO
• D.1024-QAM

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QceanStor Dorado V6 supports SAS SSDs only.

• A.True
• B.False

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Which of the following contribute to the high reliability of Dorado high-end systems? (Multiple Choice)

• A.Smart DAE
• B.Front-end and back-end interconnect (shared) I/O modules
• C.NDU
• D.FastWrite

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Two quorum devices are deployed at the third-place site.
Both quorum devices can be used for arbitration at the same time.

• A.True
• B.False

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