AutoScaling can automatically adjust computing resources according to the user's business needs and preset strategies, so that the number of cloud servers automatically increases with the growth of business load, and decreases with the decrease of business load, ensuring stable and healthy business run. Which of the following types of scaling strategies are supported by HUAWEI CLOUD Elastic Scaling instances? (Multiple choice)

• A.Cycle reduction strategy
• B.Email trigger strategy
• C.Timing strategy
• D.Warning strategy

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The enterprise has purchased a fixed bandwidth product with a yearly subscription. Due to the increase in traffic of the Double Eleven service, the bandwidth needs to be temporarily upgraded for 3 days. Which of the following options is the most suitable solution?

• A.Repurchase a large-bandwidth flexible public IP
• B.Purchase a bandwidth refueling package
• C.Directly adjust the bandwidth of the annual bandwidth product
• D.Purchase a shared data package

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Regarding the description of the Internet of Things, which of the following statements is correct? (Multiple choice)

• A.Reconstruct traditional industries with the help of ICT technology, and merge the physical world with the digital world
• B.With the help of network communication technology, not only things and people can "talk", things and things can also "communication"
• C.A network that connects any item to the Internet for information exchange and communication to realize intelligent identification, positioning, tracking and management
• D.Internet connected to everything

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In order to cope with the sudden increase in traffic in the live broadcast scene, and it is necessary to save structured and unstructured data at the same time, what type of database combination solution is recommended for tenants?

• A.DCS+RDS+DDS
• B.RDS+DRS
• C.DRS+DDS
• D.DCS

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Which of the following cloud services must the AS instance be used with? (Multiple choice)

• A.ELB
• B.ECS
• C.EIP
• D.IMS

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