The goal of HUAWEI CLOUD's three-dimensional operation and maintenance is to control the operating status of the system in an all-round way and quickly respond to various problems. Which of the following are specifically reflected? (Multiple choice)

• A.Measure and analyze the end-to-end experience of users
• B.Only pay attention to the running status of the PaaS layer application
• C.Grasp the running status of the applications deployed on PaaS, and support the tracking of faults and performance issues
• D.Monitoring the laaS layer

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Which of the following options will help enterprises build a high-availability and disaster-tolerant design for the HCS Online hybrid cloud application layer? (Multiple choice)

• A.Use G5LB to achieve load balancing of traffic between HCS Online and HUAWEI CLOUD
• B.Complete the disaster recovery protection of the business host through the 12CDP of the British side
• C.Complete RDS relational database rapid redundancy from HcS Online to HUAWEI CLOUD through DRS
• D.Complete the batch copy of the business host from HCS Online to the public cloud host by hitting and copying the entire column

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The DAYU standard design module only provides dimensional modeling as a data modeling method.

• A.True
• B.False

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What are the advantages of the recommendation system solution based on the knowledge graph compared with the traditional recommendation system solution? (Multiple choice)

• A.There is no cold start problem
• B.There is no data sparsity problem
• C.Recommendations are based on the semantic relationship between knowledge, and the recommendation results are interpretable
• D.Can make recommendations based on historical user data

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The following statements about SOA and ESB, which does not fight for?

• A.ESB has both commercial and enterprise research.
• B.SPA services can be developed in different languages
• C.ESB is an enterprise-level implementation of the SOA concept
• D.When using ESB to connect web-based services and external non-web services within the enterprise, you need to redevelop web services into non-web services.

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