After the user migrates the host using the HUAWEI CLOUD SMS service, which of the following will change between the destination end and the source end?

• A.Certificate
• B.Registry / Startup item
• C.Application configuration
• D.Username

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When users use Huawei Cloud DDM distributed database middleware, they need to configure corresponding strategies according to their own business needs.
Which of the following configuration methods of the database read strategy in Huawei Cloud DDM is wrong?

• A.When the business needs strong consistent reading, configure the full read main library strategy.
• B.When the business hopes that reads will not affect the primary instance and cannot accept that the data is inconsistent for a short time, configure a read-only instance balance strategy.
• C.When the business reading pressure is high and the teaching data can be inconsistent for a short time, configure the read load balancing strategy.
• D.The business wants to control the ratio of read masters when the read pressure is high and can accept that the data is inconsistent for a short time, configure a custom read strategy.

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Which of the following features can be provided by HUAWEI CLOUD Application Operation and Maintenance Management AOM? (Multiple choice)

• A.Application monitoring
• B.Container monitoring
• C.Log management
• D.Host monitoring

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When users use Huawei Cloud VPN service, if there are multiple consecutive network segments at the remote end, which of the following is the most reasonable approach?

• A.The network segments cannot be aggregated and must be filled in separately.
• B.There are several network segments at the remote end, just enter these network segments one by one in the input box, no matter how many network segments there are.
• C.You can aggregate continuous network segments into one large network segment and fill in the remote network segment.
• D.None of the above is reasonable.

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The video file data of a certain company is stored in the OBS bucket in the Beijing area of HUAWEI CLOUD, due to remote backup requirements. Beijing region will need OBS copy files to the bucket Shanghai area OBS barrel, which of the following programs are feasible? (Multiple choice)

• A.Use cloud hard disk backup service.
• B.Use object storage migration service.
• C.Configure OBS cross-region replication.
• D.Use storage disaster recovery services

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