A table with 1 billion data records is running in the tenant's RDS instance. The delay time is long when executing SELECT related query statements. The tenant hopes to solve the problem of slow query performance through DDM. What kind of table is selected and recommended to be created on DDM by the tenant?

• A.Global table
• B.Fragmentation table
• C.Single table
• D.Aggregate table

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Which of the following options is the key feature of HUAWEI CLOUD distributed messaging DMS service?

• A.Mass transaction transactions
• B.Horizontal expansion of the database
• C.Key-Value data cache
• D.Module asynchronous decoupling

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A tenant needs to launch an explosive game and wants to use an instance with ultra-high performance and ultra-strong network. It is recommended that the tenant purchase a C6 series of elastic cloud server instances.

• A.False
• B.True

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The scope of microservices includes self-organizing teams, technical practices, processes and tools. The three complement each other, promote and develop each other.

• A.False
• B.True

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Models developed by Al developers can be published to the ModelArts Al market.

• A.True
• B.False

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