After users purchase MySQL cloud database on HUAWEI CLOUD, which of the following items need to be managed by themselves?

A company has deployed a public-facing forum through Huawei Cloud. In order to avoid Cc attacks on registered accounts, the company puts forward the following two requirements to forum administrators.
Requirement 1: Login protection, only 3 attempts to log in within five minutes are allowed, more than 3 times will prevent them from logging in again within 1 hour.
Requirement 2: Web search, a single user searches the page no more than 30 times in one minute, if it exceeds 30, the verification code will be verified.
In response to the above requirements, which features of DDOS can be used by tenants to complete the above requirements?

When the vCPU allocated by HUAWEI CLOUD ECS spans different physical CPU, the performance will fluctuate. The host cluster generally uses affinity scheduling to avoid this situation. Which of the following technologies is used by the HUAWEI CLOUD underlying platform to achieve CPU affinity scheduling?

Which of the following options are not part of the HUAWEI CLOUD online migration service? (Multiple choice)

Which of the following statements about the matching relationship between the evaluation method and implementation method of data secure transmission are correct? (Multiple choice)