The cascading replication disaster recovery solution establishes a cascading replication relationship for the storage devices used by the business to achieve intra-city disaster recovery + remote disaster recovery, with little impact on the performance of the production center.

• A.True
• B.False

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What is the correct process sequence for installing CommServe?

• A.Firewall configuration selection->Install .NET Framework->Install database->Configure DR path
• B.Install .NET Framework->Firewall configuration selection->Install database->Configure DR path
• C.Install .NET Framework->Firewall configuration selection->Configure DR path->Install database
• D.Install .NET Framework->Install database->Firewall configuration selection->Configure DR path

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Which of the following shows the correct sequence of planning tasks?
A = Determine DR strategy.
B = Determine the need for Virtualization.
C = inventory of current situation.
D = Calculate capacity requirements.
E = Determine the backup strategy.
F = Estimate future growth.

• A.C-D-F-B-A-E
• B.C-D-B-A-F-E
• C.B-D-C-F-E-A
• D.A-B-E-C-D-F

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The Erasure code redundancy technology used by Oceanstor 9000 supports higher reliability and more flexible redundancy strategies than traditional RAID algorithms. Which of the following description about the principle of Erasure code N+M is wrong?

• A.In the Erasure code storage mode, the system supports up to N hard drives
• B.Check blocks (M<N)
• C.When data is written, it is cut into N data blocks with the same size
• D.For every N consecutive data blocks, M check blocks are calculated through the Erasure Code algorithm (M<N)

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The remote reporting functionality called Cloud Service is:

• A.An additional Huawei Support Service.
• B.An integrated part of the OceanStor Toolkit.
• C.An integrated part of any Huawei storage device.
• D.An integrated part of any Huawei V3 storage device.

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