Regarding the description of the data protection function of the Huawei Oceanstor 9000 system, which of the following options is wrong?

• A.After physical domain partitioning is enabled, the failure of hard disks or nodes in a single domain will result in degradation or failure of data reliability in other domains
• B.Oceanstor 9000 realizes redundant storage of metadata through mirroring
• C.Oceanstor 9000 realizes N+M redundant storage of data through ErasureCode
• D.When the protection level is N+1, the minimum number of nodes required by the cluster is 3

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SmartCache can support both SAN and NAS services.

• A.TRUE
• B.FALSE

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Internet company A uses Huawei's hyper-converged infrastructure to build the company's information platform, which significantly improves the reliability of the platform. Which of the following reflect this feature? (Multiple choice)

• A.Compatible with mainstream backup software in the industry
• B.Support dual-active, support zero business interruption
• C.Factory Preset
• D.Support asynchronous replication, short RPO time

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An interface module should be replaced within:

• A.15 seconds
• B.5 seconds
• C.120 seconds (2 minutes)
• D.300 seconds (5 minutes)

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The permission priority of IAM Policy is determined according to the following rule: explicit deny > allow > default deny.

• A.TRUE
• B.FALSE

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