Anti-DDos does not support traffic cleaning for which service?

• A.ApsaraDB for RDS
• B.Bare Metal Server BMS
• C.Elastic Cloud Server ECS
• D.Elastic load balancing ELB

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More than elastic cloud servers can share a key pair.

• A.mistake
• B.True

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

• A.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.
• B.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.
• 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.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.

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Huawei provides developers with open capabilities, which will help developers integrate the open capabilities of Huawei products with their upper-layer applications, Build differentiated innovative solutions.

• A.False
• B.True

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About ELB configuration description, Which ones are incorrect?

• A.The listening strategy can be configured when creating the listener
• B.Optional session retention when configuring listener
• C.You can choose ip when adding an elastic load balancer
• D.Configurable health check timeout time

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