Description of Security Group, Which of the following is wrong? (Single choice)

• A.After the security group is created, Users can define various access rules in the security group, When the elastic goes to the server to join the group or the whole group, It is protected by these access rules.
• B.Security group is a logical grouping, Provide access policies for mutually trusted elastic cloud servers in the same VPC that have the same family protection requirements.
• C.When configuring security group rules, The source and destination addresses can only be set as IP addresses, It cannot be a security group.
• D.The system will create a security group for each user by default, The rule of the default security group is to pass all data packets on the outgoing room, Restricted access in the inbound direction, The elastic cloud servers in the security group can access each other without adding rules.

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Which of the following Huawei Cloud services belong to the SaaS layer service?

• A.Cloud Container Engine CCE
• B.Elastic Cloud Server ECS
• C.Cloud Monitoring Service Cloud Eye
• D.Cloud Desktop Service Workspace

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KMS which of the following is not included in the main application scenarios of (Key Management Service)?

• A.User personal data encryption and decryption
• B.Network transmission data encryption
• C.Key information asset encryption and decryption
• D.Business core data encryption and decryption

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Description of the secret key, Which of the following is correct?

• A.You can change the key pair to log in to the elastic cloud server to log in with a password
• B.The key pair information used by the elastic cloud server can be queried through the console
• C.You can use the key to authenticate when logging in with VNC
• D.It is not possible to create a key pair to log in to the Windows single-sex cloud server

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Faced with massive multi-dimensional spatio-temporal data, fast data access is required. Which of the following services is most suitable for storage?

• A.Table storage service Cloudtable
• B.Data Warehouse Service
• C.Cloud Data Migration Service CDM
• D.Real-time streaming computing service Cloudstrear

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