Which of the following scenarios is suitable for adopting a full-stack exclusive solution?

• A.Local deployment of the operation and maintenance system requires local on-site operation and maintenance and offline upgrade
• B.Use HUAWEI CLOUD's O&M platform for unified O&M
• C.Manage third-party virtualization or heterogeneous hybrid clouds
• D.Heterogeneous hardware, local operation and maintenance

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When a HUAWEI CLOUD tenant creates an AS elastic scaling group, which of the following strategies does the AZ to which the ECS belongs supports? (Multiple choice)

• A.Specify AZ-uniform distribution under single Region
• B.All AZ select priority under single Region
• C.Specify AZ select priority under single Region
• D.All AZ-uniform distribution under single Region

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Which of the following are part of Huawei three-dimensional operation and maintenance solution? (Multiple choice)

• A.Business analysis
• B.Infrastructure layer operation and maintenance
• C.Application layer operation and maintenance
• D.Application performance analysis

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Which of the following services must be used with the HUAWEI CLOUD distributed database middleware DDM service?

• A.Oracle
• B.DCS
• C.RDS
• D.DMS

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Huawei Cloud Distributed Database Middleware DDM service as ( ) pre-distributed distributed database access service.

• A.DCS
• B.Oracle
• C.DMS
• D.RDS

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