Which of the following options are concepts in Keystone? (Multiple choice)

• A.Token
• B.Role
• C.Tenant
• D.User

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Huawei OceanStor 9000 is a storage platform that suits the characteristics of big data. The platform employs the scale-out architecture and uses hardware that adopts the general-purpose x86 architecture.

• A.FALSE
• B.TRUE

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Regarding source deduplication, which of the following descriptions is wrong?

• A.When the data is transmitted from the source to the target, the transmitted data block is hashed and deduplicated at the source first.
• B.It is only necessary to transfer the data of the new data block to the target end, and there is no need to transmit the information related to the old data block
• C.Occupy source end resources for deduplication processing.
• D.Compared with target end deduplication, it can save transmission bandwidth.

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Backup networking LAN-Base is one of the most common networking methods. What are its advantages? (Multiple choice)

• A.Both control data and backup data are transmitted through the business network.
• B.Make full use of the existing network and save costs.
• C.Does not affect the performance of the production host.
• D.Good backup performance.

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OceanStor SystemReporter can be used to monitor an OceanStor 9000, including which resource objects? (Multiple Choice)

• A.Client
• B.Disk
• C.Cluster
• D.Network port
• E.Node

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