Which of the following versions can tenants choose to experience the Huawei Cloud blockchain service for free?

• A.Gold Edition
• B.Platinum Edition
• C.Professional Edition
• D.Basic version

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Which of the following is the goal of the microservice engine CSE?

• A.Microservice on-line lifecycle management
• B.Microservice development lifecycle management
• C.Microservice full lifecycle management
• D.Microservice operation and maintenance lifecycle management

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

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What is the role of the edge cloud application integration ROMA platform in the enterprise hybrid cloud architecture? (Multiple choice)

• A.CDR integration
• B.Enterprise cloud on-cloud service capability collaboration network
• C.Data and applications
• D.Channel for data collection to the cloud

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Which of the following types of protocols does the listener of the ELB instance support? (Multiple choice)

• A.ICMP
• B.UDP
• C.TCP
• D.HTTP/HITPS

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