Which of the following statements are correct about the relationship between accounts and IAM users? (Multiple choice)

• A.The account can manage the budget of each IAM user. Once the budget of an IAM user is used up, it will not be able to purchase services.
• B.The account can revoke the resource usage permissions of IAM users at any time
• C.IAM users do not need to pay any fees for resources, all fees are charged to the account
• D.The account can modify the resource usage permissions of IAM users at any time

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Before using Huawei Cloud's Cloud Audit Service CTS, you need to activate the Cloud Audit Service first. When activating the Cloud Audit Service, the system needs to manually create an event tracker named system. You can create multiple trackers of this type as needed. The tracker will automatically identify and associate all cloud services used by the current tenant, and record all operations of the current tenant in the tracker.

• A.True
• B.False

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What functions does the Enterprise Host Security Service (HSS) provide to help enterprises build a server security system and reduce the main security risks currently faced by servers? (Multiple choice)

• A.Security Operations
• B.Web page tamper-proofing
• C.Host management and risk prevention
• D.Intrusion Detection and Advanced Defense

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Huawei Cloud provides three billing methods: on-demand, package (monthly, annual), and bidding, allowing users to flexibly choose to purchase elastic cloud servers. Among them, only on-demand billing can save costs.

• A.False
• B.True

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Which of the following operations can users perform on Huawei Cloud relational database?
(Multiple choice)

• A.Delete
• B.Expand disk capacity
• C.Restart
• D.Switching availability strategy

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